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<DIV><FONT face=Arial size=2>Troy:</FONT></DIV>
<DIV><FONT face=Arial size=2>Yes, well all the excitement that I had over CDI
just went poof, once I learned it's over a year from now to see it. I've changed
my plans, cancelled my order and YS is out of the picture now for
good. I'm glad I didn't order anything else for it. I was under the
impression that the CDI stuff was just a few months away and would be here in
time for next flying season. Looks to me that even if they do get it out
in a year or so, electric will be so much cheaper that there won't be any
argument left to re-tool from 2C to 4C. I'll just go straight to electric
now when I re-invest.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ed</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=troy@troynewman.net href="mailto:troy@troynewman.net">Troy Newman</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, October 25, 2008 6:21
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] YS newbie
questions</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Ed,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">The
CDI system is way better in my opinion.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">The
deal right now is the CDI is being tested so that guys like you are not test
subjects. This is a good thing for glow and pattern engines. I have had
awesome performance from the system and so have others. The issues we have now
are making sure it’s going to hold up and also fixing minor little
things like spark plug caps and the HS needle touchiness on really low oil. By
the way on 10-12% oil the HS is not as touchy and it acts more like an normal
engine….<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
think there will probably be a new needle valve assembly that will solve the
problem of the tuning on low oil content. Right now the HS needle is the same
as the glow plug engine. Well the mixture is quite different between
glow plug and spark plug.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Reliability
wise the CDI has been extremely good. But then I have had excellent service
from the other DZ engines as well. I know YS is working on fine tuning some of
those parts like new HS needles and so on if we need them. It’s a learning
process. The engine is the best engine I have ever used for pattern bar none.
But right now this very second I would say it might not be as easy to operate
the CDI as a regular DZ170. Once you know what to look for like Bill
Cunningham and I have been running this thing a long time….We have the “new
ear” for it. Its way easier to get working and even more consistent too. Low
idle and tremendous power and grunt.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Before
this stuff gets put into production they need to fly it a bunch. We need to
fly it a bunch to make sure guys like you don’t have problems with it. That’s
all I was trying to say. I think all the issues are pretty much addressed and
are being worked…but we need to get some time on these engines and get things
tested to tell where things stand. You can’t just make a change to a
part and say Ok that’s it make all the new production engines that
way….because you flew it 5 times today and it worked.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
really think this could be a new thing for many other glow engines. Right now
the DA150, 100 and 50’s are literally as reliable as any engine on the market.
Probably more than most. The big reason is not the gasoline it’s the
electronic ignition.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">While
there have been conversions for years to convert glow to spark…this is some
new territory and YS is doing all the things that you guys are talking about.
Tuning the advance curve to the engines performance, playing with timing to
run lower nitro and less oil. Make more power and swing larger props at slower
rpm. These are all things that are going to make pattern flying easier and
better.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Think
1400rpm idle on a 19 or 20” prop….and downline braking better than anything
out there, electric included. This setup really is the ticket for F3A…its just
not on the shelf yet.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
have some 20% nitro that I’m going to be running in the next week. Right now
the power is down a couple hundred rpm from the 30%/5% oil I have been
running. On a APC 19-11 Ignition prop or even the one I modified
myself it’s a pretty awesome combination even at the 20% nitro level. Can we
go to low nitro and low oil contents….perhaps. The CDI has the possibility to
do many things…but these things can’t be tried and perfected over night. YS is
working on lots of things to improve this engine and the CDI and low oil
content is one set of parameters that are working. I think the next couple
years are going to blow people away with the changes that are being made. It’s
a very exciting time with DSM technology and now the CDI ignition on a glow
engine. Even Horizon and Saito developed a Saito 220 into a gasoline 4 stroke.
This CDI system is a stepping stone to much bigger ideas and
products.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Troy<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B>On Behalf Of </B>Ed
Alt<BR><B>Sent:</B> Saturday, October 25, 2008 12:28 PM<BR><B>To:</B> General
pattern discussion<BR><B>Subject:</B> Re: [NSRCA-discussion] YS newbie
questions<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Maybe I'll just go
electric after all.</SPAN><o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Ed</SPAN><o:p></o:p></P></DIV>
<BLOCKQUOTE
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: medium none; PADDING-LEFT: 4pt; PADDING-BOTTOM: 0in; MARGIN: 5pt 0in 5pt 3.75pt; BORDER-LEFT: black 1.5pt solid; PADDING-TOP: 0in; BORDER-BOTTOM: medium none">
<DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">----- Original
Message ----- <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal style="BACKGROUND: #e4e4e4"><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> <A
title=troy@troynewman.net href="mailto:troy@troynewman.net">Troy Newman</A>
<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">To:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern
discussion</A> <o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Sent:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> Saturday,
October 25, 2008 1:20 PM<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Subject:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> Re:
[NSRCA-discussion] YS newbie questions<o:p></o:p></SPAN></P></DIV>
<DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Matt
and others with questions on CDI and lower oil
content,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">This
is a little long but I feel its information that you guys will appreciate
and you should realize where things are in terms of the CDI
system.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">This
engine Ed is talking about is a normal YS 170DZ. I have seen the
normal YS 170DZ fail on 15% oil content. Busted Con Rod. That is why YS
recommends 20% oil content.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">There
are no CDI engines available to the public.. The CDI engine is still at
least a year off and there is more testing that is needed. The best
and in my opinion the only fuel to run is Cool Power 30% Heli Performance.
The oil package is better than any fuel on the market. I use only this fuel
and have had extremely impressive results with this fuel and this fuel alone
for the past 5-6 years. Other that seem to have problems are bound and
determined to run other fuels that they “know are better” This is not an
advertisement for Morgan Fuels. It’s a fact of life and my experience with
engines that others have tried XYZ fuel in. Richard and the YS crew have
seen the same results. Morgan has the magic fuel that is very good on these
engines. It’s the oil package 100% proof positive. I have 160DZ’s with over
1000runs that have had bearings and rings replaced and that is all. There is
a reason we run that fuel. It flat works better than any other on the
market. When a guy has a problem with his engine and you ask what fuel he is
running 90% of the time he is not running the good stuff. I know I spend hrs
every week answering emails, phone calls and helping guys work on their
engines even repairing some of them myself.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">The
CDI engines do have some new parts in order to allow low oil content.
<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">The
low oil content on a non CDI engine that still has the new parts for low oil
makes the engine difficult to tune. The low oil richens the mixture in
effect. So with the CDI you can lean the pump and HS way down in order
to accommodate the low oil content. On a glow plug you can never lean
out the middle without detonating and it’s still way too rich at
idle.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Like
I have repeated many times. The CDI system that is being used is in its
infant stages at the moment. One thing that we are finding is while the
mixture is easier to set without having a lean blown up condition from
detonation as there is no detonation. On the other hand it’s tough to get
the mixture just right in the sweet spot. It seems as the oil content is
reduced to where I am running it now (5% oil) the HS needle can get a little
touchy in hot weather. One click either way can mean too lean or too rich.
This is likely because the HS needle is closed down a bunch and is only open
5/8 turns.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Remember
this is testing stuff. This information is being passed along to the
make the products better and improve performance.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">You
can’t take the idea of just put it on a spark plug and then use the
same old parts with a new oil content. Yes Spark ignition allows you to
change some things…but you will get into future issues and changes that are
being tested out now. There is a big difference in the way you tune the two
engines. Glow has its methods and Spark acts a little differently. You have
to realize that the people that are currently running the setup went through
some growing pains on figuring it out. We shared this info with each other
as we learned the tricks. This made others that got the new setup right
before the NATS like Brett and Don Sczur successful with it at the
NATS.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Quique’s
#1 engine had a failure of the spark plug cap. This was a mechanical part
the spark plug wire that broke. There is a new spark plug cap on that
ignition box and I have flown that exact ignition box since. His #2
engine might just have been a case of not getting the mixture set properly.
I usually get it where I think it needs to be and then fly it. In that first
flight I will tweak the mixture after I land. There have been more than a
few times I have taken off so rich that it won’t work and keeps cooling off
and off until the motor is not making any power at all. Land and lean it
down 2 clicks and its perfect. I thought it was perfect from the tach
readings and my “expert” ear. However it was not.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">So
I must repeat the standard 170DZ is just like any other YS DZ engine and
should be run accordingly. There are special parts that make it CDI and then
there are even more additional parts that make it LOW oil content
CDI.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">When
the CDI system is released it is likely that it will have the low oil parts
associated with it. To answer your question. No there are not needle
bearings on the connecting rod. However the crank, rod, lifters, other parts
are different than a standard DZ engine to accommodate the low oil content.
I know the parts I converted one of my engines from Stock out of the box
production engine from Central Hobbies to CDI back in January. Then I
converted that same engine to Low oil capability. I have flown that engine
since about May this way. First on normal 30% Cool Power Heli performance
Blend…and now on a Cool Power 30% nitro/ 5% oil
blend.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">The
normal fuel is fine with the low oil parts. This means that YS could start
including low oil parts in production engines before the CDI is released in
order to make a easier change over to CDI with low oil later on. I
have no information about this plan that I can share.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">This
setup is very cool and works tremendously well. I will not be flying
glow plugs anytime soon for sure. There is also work to be done on the
program inside the little magic box. Just an electronic ignition like off a
DA 50 is not what we are working with. I personally have had 2 different
ignition boxes that have different advance curves in them. If you know the
engine you can tell the difference. There is still plenty of testing to be
done. Yes this is exciting technology and its moving forward very fast at
the moment. There is a reason they call it testing. I would suspect late
next year at the very soonest to have CDI parts
available.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">We
need to run the engines on this low oil for a long time in order to find out
what the results are. I have been running this new fuel 5% oil content since
about May. I have not had issues. Some others have gone up to a 10-12% oil
content as they felt the engine worked better for them. Others that are
doing the testing on the new engines are just playing follow the leader as
we have been sharing information. Right before the NATS it was a mad dash to
make sure we all knew what was going on. By next NATS there will be more
testing and guys that were playing follow the setup that works will have
tested other setups. Who knows maybe the 10-12% oil is going to be the
ticket in the end Right now I have about 8 cases of 30% 5% oil though two
engines. Even in 100deg AZ temps and its performance has been good. I had
some little issues in June and struggled with it. Those problems were traced
down and the solution proved to be correct. Now it’s testing testing
testing.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
know for a fact that a normal on glow plug 170DZ will fail on 15% oil in a
few flights. I witnessed it and others experienced the same
thing.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
hope this helps answer some questions about the system. It’s just going to
take lots of flights and a few worn out engines to find out the weak links
in the system.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Troy
Newman<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Team
YS<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0in; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0in; PADDING-BOTTOM: 0in; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma','sans-serif'">
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B>On Behalf Of
</B>rcmaster199@aol.com<BR><B>Sent:</B> Saturday, October 25, 2008 10:14
AM<BR><B>To:</B> nsrca-discussion@lists.nsrca.org;
adriancwong@earthlink.net<BR><B>Subject:</B> Re: [NSRCA-discussion] YS
newbie questions<o:p></o:p></SPAN></P></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<DIV>
<P class=MsoNormal>Are you guys seeing that it really needs that much oil?
The ignition timing is in a can on this engine and you don't need to use
mixture as your timing mechanism. Is the con-rod still bushed or has YS
switched to needle bearings?<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>I suppose the amount of oil in heli fuel won't really
hurt anything but why would one not use, say, 12% oil? It should allow
better gas mileage but not at the expense of bushings breaking
down/seezing<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>Eddie were you quoted a price? I'm thinking about this
one too<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal> <o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal>MattK<o:p></o:p></P></DIV>
<DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<DIV>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt">-----Original
Message-----<BR>From: Ed Alt <ed_alt@hotmail.com><BR>To:
adriancwong@earthlink.net; General pattern discussion
<nsrca-discussion@lists.nsrca.org><BR>Sent: Sat, 25 Oct 2008 11:26
am<BR>Subject: Re: [NSRCA-discussion] YS newbie questions<o:p></o:p></P>
<DIV id=AOLMsgPart_0_13f9e423-9e37-45d8-b23b-8f957188e716>
<P class=MsoNormal style="BACKGROUND: white"><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: 'Tahoma','sans-serif'">Thanks
to all who responded, very helpful. <BR> <BR>Ed <BR>-----
Original Message ----- From: <<A
href="mailto:adriancwong@earthlink.net">adriancwong@earthlink.net</A>> <BR>To:
"General pattern discussion" <<A
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>> <BR>Sent:
Saturday, October 25, 2008 2:09 AM <BR>Subject: Re: [NSRCA-discussion]
YS newbie questions <BR> <BR>>
Ed, <BR>> <BR>>>Exhaust: I guess you buy the Hatori 821
and call it a day? Any special >>mounting
tips? <BR>> <BR>> Most likely you will be couple the 821
pipe with either the 822 or 823 > header - different rise height. Suggest
using a Nishioka quick release > pipe mount instead of the pipe mount
that came with the pipe. The Nishioka > came in three different heights -
20, 29 and 37 mm rise. Again, it all > depends on which header that
you're using. <BR>> <BR>> <BR>>>Engine mount:
I've heard a little bit about an isolation mount that YS >>makes, but
it's pricey. What, if anything does this buy you as compared >>to a
Hyde / Budd mount solution? <BR>> <BR>> Budd mount is good,
but I've found it a bit on the noisy side. Also, I > wish Jerry will
switch from 4-40 to 6-32 on the mounting bolts. So far, > I've found the
YS mount the best - between idling and full throttle. Less > noise and
less vibration. <BR>> <BR>> <BR>>>Fuel: What's
the real deal with the oil? Not the percentage, because I >>know
that's being experimented with, but what oil does this engine require
>>in the fuel? <BR>> <BR>> Recommend using either
Coolpower 30% heli, or 30% with low smoke - all > synthetic, don't use
anything with caster oil. I preferred the regular 30% > heli than the low
smoke. <BR>> <BR>>> <BR>>>Maintenance: I'ev
heard that prior to the first run, you need to take the >>head cover
off and oil up the lifters. True? What kind of oil, how much >>etc?
What about after run? None needed? What other maintenance tips are
>>there to keep this beast going? <BR>> <BR>> YS
shipped all engines with no gap on the valves. However, I always open >
it slightly before the first start. Also, take off the valve cover and wet
> sand the contact surface on a smooth surface with very fine sand paper.
By > doing that, you will eliminate any uneven high spot on the valve
cover, > causing the engine to surge due to air
leaks. <BR>> <BR>> Open up the cam cover and drop a few
drops of oil inside to lube the the > cam. <BR>> <BR>>
Use either YS or OS F plug <BR>> <BR>> No after run oil is
necessary. After you finish flying, no need to run out > the excess fuel,
unless you're planning not to fly for over a
year. <BR>> <BR>> <BR>>>Break In: What prop?
Lower the nitro? Follow the instructions or is >>there a better
way? <BR>> <BR>> Just use a slightly smaller diameter prop
for break-in, and you can use > the same nitro, just run it rich for the
first 4 - 5 tanks and gradually > lean it. I used a 16.5x13w for
break-in, fly it for 5 - 6 flights on > 17x12w. Currently, I'm
experimenting between 17.7x11.7 and 18x11 WPN > re-pitched to 18x12. RPM
between 7,600 to
7,800 <BR>> <BR>> <BR>> <BR>> On first start
of the day, do not use a starter to prime the engine - > since when you
turn the prop, pump will feed fuel into engine. Just turn > over the prop
4 - 5 times, then, rock the spinner cone back and forth 4 - > 5 times to
activate the pump, it's ready to start. You do not need to > prime the
engine again after the first flight. <BR>> <BR>> Preferably,
use a time delay glow driver - to prevent knocking/ kick back. > Do not
take the starter away as soon as the engine stated, let it spin for > an
additional 2 - 3 seconds to ensure the engine is indeed started to >
prevent abrupt stop. <BR>> <BR>> The 170 is pretty much
bullet proof, the last one I sent back for service > have had over 500
flights. It only needed front and rear bearing and > piston
ring. <BR>> <BR>> If you have other question, feel free to
contact me. <BR>> <BR>>
Adrian <BR>> <BR>> <BR>> <BR>> <BR>>
_______________________________________________ <BR>>
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<A href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion"
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