losing power!

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gcruiser

New Member
Jul 27, 2010
9
0
0
Truckee, CA
Hi-
My huasheng 49cc 4 stroke engine bogs down pretty easy. I live in tahoe, and ride between 5500-7000 feet elevation. I understand I'll probably lose some power due to thin air. I'm running a 48 tooth rear sprocket and a stock grubee skyhawk stage 3 gearbox.
I'd love any suggestions on powering up my ride. like carb re-jetting/adjusting... or larger sprocket size? I aint looking for crazy high performance, just wanna keep some speed on these hills without having to pedal my ass off(kinda defeats the reason I got this bike!).
Anyone tried the sickbikeparts shift kit? does it make a big difference. is a regular bike chain strong enough? any disadvantages?

Thanks!
-Greg
 

MotorBicycleRacing

Well-Known Member
Jul 28, 2010
5,844
109
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SoCal Baby!!!
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A 48 tooth sprocket is for light riders on flat land.

Try a 56 tooth sprocket.

I think the kit came with a 56 tooth.

How do you like that gearbox? Does it make much gear noise?
What oil/ grease do you have in the gearbox?

Hi-
My huasheng 49cc 4 stroke engine bogs down pretty easy. I live in tahoe, and ride between 5500-7000 feet elevation. I understand I'll probably lose some power due to thin air. I'm running a 48 tooth rear sprocket and a stock grubee skyhawk stage 3 gearbox.
I'd love any suggestions on powering up my ride. like carb re-jetting/adjusting... or larger sprocket size? I aint looking for crazy high performance, just wanna keep some speed on these hills without having to pedal my ass off(kinda defeats the reason I got this bike!).
Anyone tried the sickbikeparts shift kit? does it make a big difference. is a regular bike chain strong enough? any disadvantages?

Thanks!
-Greg