shane.ballard.nf
Member
- Jun 4, 2006
- 82
- 0
Should i continue trying to jet my yz490J or is the issue something else.
I noticed that i can push the bike in any gear and the engine will turn over and sometimes make a poping noise thru the exhaust, is this normale or a sign of damage?
never had a look at the topend of the motor
when i drive the bike i can go through all the gears but the bike is not revving high at all its more like bahh bahh and it's low revs and low speed and power
i was thinking it's simply to rich jetting, but maybe the topend is contributing to this problem
i think i will still try to make the jetting more lean or play with the airscrew and see if it will bring better results
I have heard that bad crankseals can immitate rich jetting but i had the cover off the magneto side and no oil also the kickstarter side crankcase cover was removed and put back on with new gasket and sealing stuff
would like to understand the problem and fix it
I noticed that i can push the bike in any gear and the engine will turn over and sometimes make a poping noise thru the exhaust, is this normale or a sign of damage?
never had a look at the topend of the motor
when i drive the bike i can go through all the gears but the bike is not revving high at all its more like bahh bahh and it's low revs and low speed and power
i was thinking it's simply to rich jetting, but maybe the topend is contributing to this problem
i think i will still try to make the jetting more lean or play with the airscrew and see if it will bring better results
I have heard that bad crankseals can immitate rich jetting but i had the cover off the magneto side and no oil also the kickstarter side crankcase cover was removed and put back on with new gasket and sealing stuff
would like to understand the problem and fix it