Sundie
Jabroni
Question: What do you do with the crankcase vent?
I also believe that an engine needs to breathe to allow for maximum performance,something Yamaha didn't consider when they produced these dam fine motorcycles.
Question: What do you do with the crankcase vent?
- install a brake booster check valve in the crankcase breather line...also helps create negative crankcase pressure and serves to restrict leaking oil seals...early models have 2 lines, later models 1
- most good auto parts shops should have these valves
- sounds like a top end rebuild is in order