flywheels can you

[swamp]

use a stock flywheel on a 125 crank and vice versa

today i tried putting a stock motor in place of the 125.. due to noise issues in the motor...

first the old stock motor wouldnt fire.... the stator on the old motor was junk so i took the 125 stator , pickup coil, and flywheel

now the motor fires and backfires thru the exhaust

is it the flywheel or is it maybe a bent valve or something in motor

[trx90luke]

jet it right, adjust valves, change oil, new spark plug its just simple maintence

[swamp]

no the question is

are the flywheels the same on a stock bike and a built bike


i found out the answer same flywheel

i am just gunna tear the motor down and build another 125

[trx90luke]

sweet