YS 160 DZ

[Bill Glaze]

Is every Y.S. 1.60 DZ owner running 30% nitro?  At the field Saturday, 
one of the pattern flyers mentioned that another had spent $160 for just 
6 gallons of 30%.
I'm currently running 15% (Red Max) in my Y.S. 1.40 engines, and they 
run just fine. (and run, and run, and run.........)  I'm re-thinking my 
lust to get a Y.S. 1.60; I had hoped the teething problems were over 
after the engine's fine showing at the Nats, but I guess there's some 
more progress that needs to be made before the engine is ready for us 
mere mortals!<G>
Bill Glaze

mike mueller wrote:

>  Troy I've made a few observations about the YS engines after using 
> them for 3 out of the last 4 years. We have what I believe to be the 
> largest pattern club in the country here in Chicago with at least 15 
> dedicated flyers at our home field almost all use YS product..
>  I think the YS DZ is the most powerful engine available today I also 
> think they are very unreliable. We've had over a 60% failure rate this 
> year alone with the DZ's being used here. When they run they are 
> awesome and that's what keeps most of us here willing to fight thru 
> the problems. We have had a lot of problems with the pumps. One of our 
> sponsored flyers went thru 3 pumps on 1 engine this summer. These are 
> people who have strong relationships with Verano.
>  I have had a very good engine this year but it has continued to break 
> head gaskets all year long and it leaks fuel to the point of being 
> nicknamed the "Exxon Valdez". She's going back to the factory this week.
>  I hope that YS takes there time with the release of the 160DZ and 
> makes them more reliable. One of our really top flyers here has had so 
> many problems with his 2 DZ's this year that it all but ruined his 
> season. The guys a top auto mechanic and he knows engines.
>  I'm going to stick with the DZ because I think it's like F1 racing. 
> On the edge! Still one should know what there getting into with these 
> expensive, finicky and complicated buggers.
>  Also I know that our group has enough mechanical smarts to setup and 
> run engines correctly. I'm hoping for the best here. Thanks, Mike
>
> Troy Newman <troy_newman at msn.com> wrote:
>
>     Mike,
>      
>     I have not seen the MA ad yet, but I do know that Yamada was
>     playing with some new pump designs. This was a two fold deal: #1
>     make the pump easier to produce (less $$ and less hassles) and #2
>     to make the pump a more user friendly easier to adjust version.
>     Now with this re-design I believe they found out some things in
>     the longevity side of the equation and these applied to the std
>     140DZ pump. Then the 140DZ pump got an upgrade and met the goals
>     of the new pump design and kept the parts the same in terms of
>     looks. My original 160 DZ has the same pump as the 140DZ.
>      
>     I have run both pumps and they run the same. Then again I don't
>     tend to have problems with my motors. They just run and run and
>     run. I actually wear them out after hundreds of flights.
>      
>     TN
>
>         ----- Original Message -----
>         From: Zoro1024 at aol.com <mailto:Zoro1024 at aol.com>
>         To: discussion at nsrca.org <mailto:discussion at nsrca.org>
>         Sent: Monday, September 27, 2004 8:19 PM
>         Subject: Re: YS 160 DZ
>
>         Kind of wonder myself, I see their add in the AMA magazine
>         shows a different pump arrangement.  Something has got to make
>         them better, I've become the postman's best friend mailing the
>         140's back to NV.
>          
>          
>          
>         Mike
>
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