[NSRCA-discussion] YS 140DZ tuning question

[Ron Van Putte]

On May 1, 2006, at 9:54 PM, adriancwong at earthlink.net wrote:

> Troy,
>
> You better hope Jenny is not reading your post.

Hey guys - We need a consensus.  Was using "prostitution" in lieu of  
"position" a Freudian slip or just a screwup?

Ron Van Putte

>
> -----Original Message-----
>> From: Bob Kane <getterflash at yahoo.com>
>> Sent: May 1, 2006 1:40 PM
>> To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>> Subject: Re: [NSRCA-discussion] YS 140DZ tuning question
>>
>> Whew !!  I was worried how to explain to the wife that
>> it was to help the engine run better ;)
>>
>> --- "Troy A. Newman" <troy_newman at msn.com> wrote:
>>
>>> That was position not prostitution!
>>>
>>> Spell checker going too fast
>>>
>>> Troy
>>> ----- Original Message -----
>>> From: "Troy A. Newman" <troy_newman at msn.com>
>>> To: "NSRCA Mailing List"
>>> <nsrca-discussion at lists.nsrca.org>
>>> Sent: Monday, May 01, 2006 12:53 PM
>>> Subject: Re: [NSRCA-discussion] YS 140DZ tuning
>>> question
>>>
>>>
>>>> I would recommend leaning the HS a few clicks and
>>> try it out and see if
>>>> its too lean. If its not too lean then fly it and
>>> see.
>>>>
>>>> The DZ motors run in a leaner spot of the HS than
>>> an pressurized version
>>>> will. Yes it will make great gobs of MOE rich but
>>> it will not idle well if
>>>> its too rich and it will shake bad too. Just lean
>>> it down a bit and see
>>>> where it wants to be. I usually end up with a
>>> fairly new motor about
>>>> 1.25turns out. You are a little further away and
>>> most like 1/4 turn on the
>>>> needle will solve the problem for you.
>>>>
>>>> Basically a good rule of thumb on any motor is to
>>> not be a prostitution
>>>> where if it quits right now you can't make it
>>> back. I guess you learned
>>>> that one this time.
>>>>
>>>>
>>>> Troy
>>>> ----- Original Message -----
>>>> From: "Troy A. Newman" <troy_newman at msn.com>
>>>> To: "NSRCA Mailing List"
>>> <nsrca-discussion at lists.nsrca.org>
>>>> Sent: Monday, May 01, 2006 12:42 PM
>>>> Subject: Re: [NSRCA-discussion] YS 140DZ tuning
>>> question
>>>>
>>>>
>>>>> Bob,
>>>>>
>>>>> too rich...most likely on the HS...but could be
>>> too much pressure out of
>>>>> the
>>>>> pump.
>>>>>
>>>>> Its no longer a pressure regulator its a pump.
>>> This is common when the HS
>>>>> is
>>>>> too rich...the raw fuel is dumped into the head
>>> of the engine and puts
>>>>> the
>>>>> fire out.
>>>>>
>>>>> Troy
>>>>> ----- Original Message -----
>>>>> From: "Bob Kane" <getterflash at yahoo.com>
>>>>> To: <nsrca-discussion at lists.nsrca.org>
>>>>> Sent: Monday, May 01, 2006 10:50 AM
>>>>> Subject: [NSRCA-discussion] YS 140DZ tuning
>>> question
>>>>>
>>>>>
>>>>>> You may have seen my previous post about
>>> replacement
>>>>>> landing gear for my Temptation which were broken
>>> by a
>>>>>> "landing" in a farmers field after an untimely
>>>>>> deadstick.
>>>>>>
>>>>>> I could use some DZ tuning guidance. I'm pretty
>>> good
>>>>>> at setting up the FZ/L series, but this
>>> experience
>>>>>> does not help much with the DZ.  The deadstick
>>> occured
>>>>>> on a downline after testing the vertical
>>> performance.
>>>>>> I pulled the plane vertical and rolled on the
>>> throtle,
>>>>>> it rocketed straight up. Satisfied with the
>>> ample
>>>>>> vertical performance, I rolled the throttle back
>>> and
>>>>>> did a sloppy wingover to get the plane pointed
>>> back
>>>>>> down. I pulled back to horizontal and rolled the
>>>>>> throtle up to about 1/2 and watched in shock as
>>> the
>>>>>> prop slowed and stopped. You know the rest of
>>> this
>>>>>> story.
>>>>>>
>>>>>> Is this a symptom of too rich, too lean, bad
>>> plug or?
>>>>>> The needle was open 1 5/8 turns, which seemd to
>>> be
>>>>>> good on the ground. I was running PowerMaster
>>> 20% DZ
>>>>>> blend, Mejzlik 16X12 prop, OS F plug. The tank
>>> is on
>>>>>> the CG, YS foam clunk, no header tank. The vent
>>> line
>>>>>> has a check valve to keep fuel from leaking out.
>>>  My
>>>>>> plan right now is to bench run the engine to see
>>> if I
>>>>>> can figure out the needle sweet spot, but I know
>>>>>> performance in the air can vary. Any help is
>>>>>> appreciated.
>>>>>>
>>>>>> Bob Kane
>>>>>> getterflash at yahoo.com
>>>>>>
>>>>>>
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>>>>>>
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>>>>>>
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>>
>>
>> Bob Kane
>> getterflash at yahoo.com
>>
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