au_Nightmare

Thanks Dino, that makes sence

(BTW - Your english is fine!!)

Ybakoff

Hi all, Just about to start my D3 for the first time. Where should I set my needles.

EdwardN

iTrader: (1)

Ouch! I put so many pics of my motor ( Palmaris PS12), so for sure now I need to expect that it will be reproduced!!!!!!!! by everybody!!!!!!!!!!

kitracer

TG, you got PM

tks
Chris

TOEBSTER2

iTrader: (6)

Ybakoff
Last year I had a sts breakin sheet that said 4 turns out on the high needle, 4 turns out on the low and mid range to be flush with carb body.
I started breaking in my D5 last night and started with this. I turned it out a tad more on the high and low(8th of a turn) to get a little fuel to spit from the pipe to make sure I was rich enough.
Also try preheating your engine to make to piston not stick so much.
Good luck.

NitroOB4You

iTrader: (36)

Ok...after much (*^*&%& , fiddling and frustration...I think I may finally have things square...It idled decent for a few minutes and the temp was at 160, then it died. Im letting it cool down now and will try starting it again in a few minutes. I have a Raytek with out the laser, I point the top of the gun, where the line is, down at the glo plug. Im pretty sure this is correct. I did notice that while it did idle ok, it did seem to surge for a split second every now and then. I dont think this is a major issue at the time though, just a note.

NitroOB4You

iTrader: (36)

wouldn't ya know it.....


RRRRRAAAAAAIIIINNNNNNN!!!!!!!

Ahh well...we'll keep ya informed as things go on...
BTW, I was mistaken in my first post...I meant to say I had the silver shim...I do know I have the correct shim in.

dino.tw

Hi NitroOB4You,

Do you use very long pressure line?If so,try to make it shorter a bit.

If presure line is too long,it will let your engine singing. When you close your throttle,the rpm dosen't fall soon.

If presure line is too short,it will let your engine perform not that good at mid-rpm range. The back pressure deliver too fast.

NitroOB4You

iTrader: (36)

I will keep this in mind.However, I do not have a problem with the closing of throttle...it idles up on it's own, with no throttle input. And when I do blip the throttle, it comes down fine.
I am not sure if I understand completely ...are you suggesting that too long a pressure line may cause the idle to go high, or are you suggesting that too long a line may cause problems with the revs coming down as the throttle returns to neutral? Or are both situations possible?

OMG!!! I think I do see your point though...I just measured my line...being all curled up like it was, it does not "look" too long....however, after stretching it out and actually measuring it, I found that is is close to 14" or 350 mm long ...
Soooo...anyone have a ball park figure as to how long the pressure line should be?

au_Nightmare

That depends on how much backpressure your pipe generates but if its just sitting there and starts singing after awhile it sounds to me the LSN is a tad too lean.


Currently that's my problem, I am going to lengthen and add a fuel filter to the pressure line, apparently that also helps

dino.tw

close to 14" or 350 mm long...

Almost the same with mine but I'm using STS21 and 9886....

I would keep it as short as possible if the mid-rpm perform well. Your engine may easy to over heat due to not enough fuel to let it cool down when you close the throttle.

dino.tw

To whom is interested in STS 21 engine. There are some pictures...

dino.tw

dino.tw

Tested it yesterday at our home track(gee chih racetrack). Perform not that bad with my 950R. I got the fastest lap time yesterday 14.6s. The 2nd racer is 14.7s with his M.Collari Sirio/Evolva.

But we do meet some problems in some parts like carb and crankshaft....So need more time to make it better. I'm using RB's carb for the moment...

ziggy12345

So whats the verdict??

STS is OK or not? or do I buy a Noverrossi?

Thanks