Gearbox oil

[rich1]

Also now is good time to be sure vent tube is not plugged. When mine was plugged it made enough pressure to pop the sprocket seal right out of the case.

Yep, around here Wasps plug up any holes they find with mud. Every year, I have to unplug my jet skis side water vent holes and hull plugs, never fails. Carb vent hoses are targets too !

 

[98blaster]

Belray gearsaver 80, its $12 a qt but my opinion works the best,

 

[Fast6hand]

Belray gearsaver 80, its $12 a qt but my opinion works the best,

That's funny, I just bought some today. I'm gonna use Valvoline 10w-30 for the build and break in, then put the Belray in after.

 

[speedyslyder]

yup 80weight is good for trans gears but it dont extend the life of your clutch,although you can easily change a clutch,not so easy to change trans gears.