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Post by jman24 on Jul 3, 2012 1:09:29 GMT -6
So a few weeks ago I foolishly let my buddy ride my scooter(08 tank racer 150) He go down the block, lost control and totaled my scooter!! So to make up for it he replaced it with a 09 chaun adventure 150!! I immediatley noticed that it didn't have the same top speed as my tank!! My tank hit about 60-62 mph and this adventure only hits 55 mph!!
What would be a somewhat cheap/fast way to gain more speed?? should I change the weights??? get a bigger belt??? If I get at least 5 more mph I'll be happy once again!! thanks!!
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Post by tvnacman on Jul 3, 2012 5:01:07 GMT -6
Wait 1000 miles and do valve adjustment. Let the engine breaking and loosen up.
John
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Post by JR on Jul 3, 2012 6:36:49 GMT -6
TV is right if it is a new engine it will loosen up as it breaks in and do better. CVT gains are possible even with a new engine, all depends on your riding habits and/or terrain? Ride on flat ground simply go to sliders of the same weight your rollers are and if it is a long case GY-6 with a 835 belt go to a 842 and this alone is a cheap small gain that won't strees the engine and yet get a little more top end. If it has a 842 belt already then you're stuck there or if it's a short case then the belt is what it is, no longer belt made. If you ride in a combination of flat land and hills consider sliders of one gram less weight, good pulling on the hills and no loss of top end. You can open the CVT cover and investigate what you have, that's free!  JR |
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Post by jman24 on Jul 3, 2012 12:05:08 GMT -6
Thx. Sorry I forgot to mention that the adventure has 1500 miles. I'll open it up this wkend n c what I'm working with. If go with heavier weights would that go me justice??? Thx again!
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Post by tvnacman on Jul 3, 2012 13:28:47 GMT -6
Depends on the belt.
John
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Post by JR on Jul 3, 2012 20:26:29 GMT -6
Again depends on how and where you ride. Heavier weights equal less RPM slower acceleration. Lower weights equal fast acceleration less top end.
What one tries to do is the reach a happy medium in the power range. The typical GY-6 engine's maximum power curve of HP to RPM is around 7500 RPM.
What I Itry my best to do is hit the 55 MPH range at around 7200 RPM on flat ground and leave myself some throttle so when I start climbing the hills I can hold speed better and not bog the engine down. .
JR
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Post by jman24 on Jul 5, 2012 2:20:34 GMT -6
Cool. H
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Post by jman24 on Jul 5, 2012 2:21:25 GMT -6
Cool. Thanks. I think Ima give some heavier weights the ol college try!!
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