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2001 elite sa50 should be going faster
Posted: Mon May 30, 2011 10:16 pm
by Pierce ramsay
I have a 2001 elite 50mm rumia bore, upgraded oko carb and vari with 10gram rollers
Ct intake and 9.1 gears running 46.7mpg I gps'ed today ist that slow fir my set up running
48-piolte and 120-main jets in carb what's wrong
I should be closer to 55mph right
Re: 2001 elite sa50 should be going faster
Posted: Mon May 30, 2011 10:23 pm
by Wheelman-111
Greetings:
The right carburetor jets depend on the carb size. Other than "OKO", your post doesn't say which sizeyou have. Also I'm in the dark as to the exhaust. That too will determine optimal jetting.
Presuming the engine power is decent, your issue might be with the 60-gram variator load. Stock was 8.5 on the 2001 SR, and even that keeps the stock engine strangled below its best power.
Consider lightening up those rollers. The well-tuned 50mm bore is capable of 55 with those gears.
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 3:41 am
by Munstah666
I agree with Mr Wheelman, them rollers are too heavy! Carb size?
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 4:49 pm
by Pierce ramsay
Ok thanks For all the info I will lower the wieghts and I have a v8 28mm pipe I think it's a 28..... Also my carb is a 24mm oko! Out to lower wieghts and test drive!!
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 4:54 pm
by Wheelman-111
Greetings:
Jetting may be pretty good for a 24. Double-check with temperature readings and/or plug reads. Cardboard color = Good.
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 5:24 pm
by Pierce ramsay
Ok vari with wieghts and the round cylinder that goes inside vari to turn belt is 290grams
The wieghts alone are 9grams each times 6 equals 55grams..... Putting back on and soon
To be headed out
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 5:53 pm
by Wheelman-111
Greetings:
Forgot to axt you what center spring you're running. That of course will help determine optimal roller weight.
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 6:09 pm
by Pierce ramsay
2K center spring... Buts stock clutch and bell..... Back in from ride max speed is 46.2 so roughly the same
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 6:38 pm
by dun rite
Kinda hate to ask and then feel stupid but. are you sure the gears are 9:1?
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 6:52 pm
by Bear45-70
The belt could be shot.
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 7:12 pm
by Pierce ramsay
YES!! they are 9:1 I'm positive but the bore trys to speed up and kind surges but then goes back to 45ish..... I have recently upgraded belt to 17mm belt about 100miles ago
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 7:24 pm
by Wheelman-111
Greetings:
17mm belt? What length? Malossi made a Derbi/Suzuki 16 that worked pretty well with a thin shim, but changing belt dimensions requires other changes.
Stock length is 641 and width is 15.5. A ZX pulley needs 654 or 669 x 18. If your 17 is too wide for the pulleys or the wrong length, it's not an "upgrade".
Try a stock belt and see?
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 7:27 pm
by Pierce ramsay
Measured side by side with stock belt there the same lenth and one is only slightly wider
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 7:35 pm
by Bear45-70
Pierce ramsay wrote:Measured side by side with stock belt there the same lenth and one is only slightly wider
A wider belt has to be longer because it will ride higher on the variator.
Re: 2001 elite sa50 should be going faster
Posted: Tue May 31, 2011 7:38 pm
by Pierce ramsay
So is it bad if the thicker one is the same lenth?