Motorcycle bottom end rebuild part 2 (of 3) crank & bearings

http://www.rockymountainatv.com - How-to disassemble and rebuild the crank and transmission on a modern 2-stroke motocross motorcycle or ATV. crankshaft dirt bike.

Category:

Autos & Vehicles

Tags:

• motocycle
• crank
• shaft
• rebuild
• honda
• yamaha
• yz
• cr
• kx
• crankshaft
• transmission

[jesserodriguez73]

if that big bearing behind the flywheele goes out will that make your bike lock up when you are riding.. plz respond

[RockyMountainATVMC]

@jesserodriguez73 - when it gets loose, you will often hear a "knocking". If it fails...yes, it would most likely lock up and damage a lot of other parts in the process.

[lamborev69]

what would happen if you put the crank seal in all the way? not flush to the ridge?

[RockyMountainATVMC]

@lamborev69 - on some bikes it could block the lubrication port to the main bearing.

[lamborev69]

@RockyMountainATVMC cheers, ahhh right :/ ......1990 cr 125?? by your knowledge will damage be caused? cuz i dont want to take it apart again

[RockyMountainATVMC]

@lamborev69 - you should be able to pull the seal out from the outside (you will ruin it) and put a new one in. That is what I would suggest.

[chayseharley22]

2008 kx250f. clutch wont release and cant kick start it in gear.

[lamborev69]

@RockyMountainATVMC cheers, ahhh right :/ ......1990 cr 125?? by your knowledge will damage be caused? cuz i dont want to take it apart again

[wardy1231980]

@RockyMountainATVMC

ive done it all now, cheers guys. yeah it took about 10 minutes of fiddling around with it but its all done. your vids are excellent. keep up the great work guys, Regards Carl.

[RockyMountainATVMC]

@wardy1231980 - that bike is tricky because you have to put the two gear shafts, shift forks, shift cam intogether at the same time. It is best to refer to the manual to see how they all fit together. It is tricky getting them into the case half at the same time.