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Posted: Wed Apr 29, 2009 4:13 pm
by evilone
Ok i'll try them weights. But...i have a 1k center spring :). I plan on getting a 1.5k and 2k to play with since the pg's are out of stock. I'd jump on that Scorpion if i knew for a fact my R1 is to blame. I'm going to beef up clutch first. Any idea where i can get them bearings for the center spring (like maddog sent burnt-toast and wheelman)? Or are they old school can't get any more parts?

Posted: Wed Apr 29, 2009 4:40 pm
by evilone
Just curious; How do the clutch and weights can get me into my powerband? I know i'd be able to accelerate longer before variator shifts, but then when it shifts wouldn't i be out of powerband? Or...do i use the weights to tune variator to shift slower keeping me in the powerband? And where is my powerband, at a certain rpm?

Posted: Wed Apr 29, 2009 5:45 pm
by Kenny_McCormic
Ever ride a spree? know how from 15-25 they accelerate quickly but otherwise are slower than dog s***? You want to tune the trans to keep the motor at that rpm range.

Posted: Wed Apr 29, 2009 6:22 pm
by evilone
ok, i know what you mean. I got some tuning ahead of me, time to order some center springs :)

Posted: Wed Apr 29, 2009 7:49 pm
by scooterwerx
you tune the trans to keep the engine in its powerband at all times, on most 2 strokes its pretty narrow, maybe a couple thousand rpm, so thats the trick. shift too soon, engine loads up=slow. shift too early, revving out low gear=slow. shift in the power, keep up the r's, use high gear=fast!

Posted: Wed Apr 29, 2009 8:11 pm
by evilone
shift too soon, engine loads up=slow. shift too early, revving out low gear=slow
too soon...too early? :lol: You did mean too soon and too late right? :D

Sounds like my problem. I take off ok at wot...then get going pretty decent...then at 30-35 mph i can hear the shift and it feels and sounds like i lost alot of power=loaded-up. I can start to feel the r's right around 50 mph. I got it.

I also confirmed my R1 is the bigger 28mm designed for 72-82cc so it should be ok till i can get better.

Thanks for the replies, now it's all making sense. Anyone know of a tach that will work on 2-strokes? Sounds like it might be easier to tune with one.

Posted: Wed Apr 29, 2009 10:05 pm
by losthope
spreeisnotme wrote:no i can get you a new one
Do you have any pics of the pipes? thanks

tinytach.com

Posted: Wed Apr 29, 2009 10:56 pm
by Wheelman-111
Greetings:

Design Technology website sells Tiny Tach for $35. I would spring for the $60 Commercial model as it updates faster. Install requires only a ground wire. You wrap the spark plug wire with the sensor.

Disadvantages: can't see at night. Finite internal battery life.

Posted: Thu Apr 30, 2009 7:15 am
by spreeisnotme
Yea heres a pic of the 125cc on my sym.
Image

Posted: Fri May 01, 2009 7:52 pm
by evilone
ok. Rain let up finally but 54 degrees. Tried 6 and 3 rollers, i hear and feel the difference but need to go lighter till my 1.5k spring comes in. Thanks for the help everyone.