Suggest you call a Yamaha dealer for info.
The proper spark plug gap for a 1980 Chevy 350 Pickup is .045, according to spark plug manufacturer (Autolite, Bosch, NGK) specs.
oil ratio is 1% Pierre
If you use NGK plugs BPR7ES or BPR7EIX the gap is 0.032. Safe riding!
280.00
The Yamaha 850 XS is an air cooled bike. There is no radiator to fill.
If you are talking about the 1980 Yamaha Enticer, the top speed would be 55mph.
133.6 MPH
Twins are .7-.8mm.
On a Yamaha 1980 XS400 the valve clearance for the inlet valve should be 0.0003 inches. The valve clearance for the exhaust should be 0.006 inches.
yes the only difference is the ignitions
Mid 1980's
20w/50