Gear oil for chain case?

[XP123]

What are you guys using in your chain case? Yamaha calls for 75 or 80 w gear oil. I've used 75/90 and 75/140 synthetic in the past. Does it really matter?

 

[fatchance]

This stuff has worked great for me over the years and it's bright red which makes it easy to spot if there is a leak.

 

[PowderFalcon]

I have always used amsoil chaincase oil

 

[silverram323]

I have always used amsoil chaincase oil

Me too

 

[geez150]

I'd say that 75/90 or 75/140 is fine. Everyone gets so amped up on chain case oil that has no rating on it. In my opinion it is just very high priced gear box oil. I have had good luck with M1 gear oil, have used it in my sleds for many seasons.

 

[Never Satisfied]

ATF

 

[Joe ltx-le]

Motomaster 75:90 syn has always worked for me

 

[Hammer70]

I have always used this with no issues

 

[stevewithOCD]

I have always used amsoil chaincase oil

Me 3

 

[maim]

i use royal purple 75w90 or 75w140 in all our sleds now. used 80w90 for years with no problem. just find it moves more easily with the synthetic.

 

[ROCKERDAN]

I have always used amsoil chaincase oil

x2

 

[Motorhead]

No matter what you use, if the chain is too loose it will create some damage. I use a 75-90 full syn.

 

[XP123]

No matter what you use, if the chain is too loose it will create some damage. I use a 75-90 full syn.

They recommend running the chain really loose. I know last year I ran mine tighter than what they want.

 

[Motorhead]

They recommend running the chain really loose. I know last year I ran mine tighter than what they want.

Gut feeling or Viper experiences? Either way, Good Call.

 

[ROCKERDAN]

I think we all had a consensus of finger tight then, "1 turn out". To be the sweet spot to not rub but not so tight to make the "wind" noise.

Dan