Just go buy any chaincase oil such as AMSOIL.
8 ozs. i use 80-90w gear lube in my chaincase.
yes
answered on dootalk. 75W90 synthetic gear lube
If something else is wrong. My chain slipped and went through the crank case and destroyed the engine. But it was old. I've heard of this happening on other Yamaha's, so maybe their timing chains need to be replace sooner. not sure
the last digit of your serial number is the year, this is the case for my chappy Yamaha 85 the last digit of your serial number is the year, this is the case for my chappy Yamaha 85
Cannot tighten, Replacement is the only fix for loose transfer case chain.
I have an 1980 Yamaha Enticer 250 (ET250D). Here's what the sticker under the hoods says...The oil capacity for the "Chain Case" is 15.21 oz (or 450 cc).If you are talking about the engine crankcase, there is no oil in the crankcase of a two-stroke engine. It is lubricated by the oil that is mixed into the gas.I am not sure what weight oil to use. The dealer told me to use Yamaha Chain Case Oil (but he didn't know the weight of the oil).Hope this helps!TK
There is a rubber plug on the chain case you will have to pull off. Then a small screw at the bottom of the case you unscrew. Fill the chain case through the rubber plug till oil comes out of the screw hole at the bottom
None
chain drive
yes in the chain case
a chain saw