gas leaking from flywheel case

[200blaster1994]

I got a 1994 200 blaster and i got a major gas leak coming from the flywheel case. i bought the four wheeler 4 weeks ago and paid $500 for it to get fixed and it came back with a bad leak. if anybody could please tell me what it is thank you.

 

[brandoz28]

welcome to the forum


first of all DO NOT RUN THE ENGINE ANY MORE!!!!!!!!!!!!


you need to replace the stator side crank seal. get a GOOD Seal (i prefer OEM Yamaha seals). you will also need a flywheel puller. a holder makes life much easier, but isn't required. make sure that you torque the flywheel to spec afterwords!

 

[slickerthanyou]

welcome to the forum


first of all do not run the engine any more!!!!!!!!!!!!


You need to replace the stator side crank seal. Get a good seal (i prefer oem yamaha seals). You will also need a flywheel puller. A holder makes life much easier, but isn't required. Make sure that you torque the flywheel to spec afterwords!

x1000! ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ i:i

 

[brandoz28]

also, a leak down tester should be added to your toolbox!!!! this will help you verify the repair, as well as do diagnostics in the future

 

[200blaster1994]

alright thank you but today i went to the yamaha store and bought a crank seal and put it on today but when i got on it and kicked it. it still leaked and how do hold the flywheel when trying to tighten it?

 

[Blaaster]

Either the case is cracked or broken, or the fuel is leaking out of the carb and migrating trhere.

A leak down test is required to see if it is the case.

Do not ride it!

 

[91yamahablaster]

listen to these guys they know what they are talking about i just blew up my motor today cause i thought i knew what i was doing. if i would of taken there advice(which is why they are here) i would have alot fatter wallet

 

[200blaster1994]

alright but how do i hold the flywheel while trying to tighten it? and i just dont get it because i put a new seal in it and the old one looked really bad but i replaced it with a new one and it still leaks. Does the flywheel got to be tight so it can push that seal down or what???

 

[91yamahablaster]

Get yourself a flywheel holder also called a clutch holder. To hold flywheel while u tighten it and it could be a cracked crank case causing gas to leak out. You should leak test to be sure. Slickerthanyou makes great testers. Pm him if u need one

 

[brandoz28]

if it's still leaking, there's still a problem. leave the flywheel off for now until you get it actually fixed.

 

[200blaster1994]

alright thank you i will do and i'll keep yuns updated on it