by bwolfie » Sun Jul 17, 2011 6:00 am
Hedre is a short list of the Must do's, in my opinion:
Swingarm BUshings- bronze or needle bearing conversion
Steering head tapered bearings
Petcocks- notorious for leaking
Cam chain adjuster- The cover for the adjuster on the 75 and older bikes was cast zinc, they crack and leak oil from age-replace with the 76 and newer version
Ignition- I can't recomend the pamco pete ignition. I chased an ignition problem for weeks until I got this. Took all of 10 minutes to install and astarted on the first kick.
Oil filter- Yamaha uses brass screens in the sump and side cover. The sump screen tears and allows swarf to run thru the pump. Get a new sump screen- they are reinforced, also a side filter conversion kit, it uses a honda paper filter and a cool finned extention/adapter.
There are spinon sump filter plate drawings out there, I made my own finned version.
Check your alternator, it's a 2 brush system, it sucks, I'm doing a 3 wire conversion using honda stator and banshee rotor. Said to be about 5 times the output.
Those are the real annoying problems. Good luck and feel free to ask any questions.
1972 Norton Combat Commando 750, 208946
1973 Norton Commando 850, 301517, Cafe
Featherbead Project, Norley Cafe Monoshock
1975 Yamaha XS 650, 750 big bore kit, 2nd owner.
1977 Yamaha XS 360
Owner, Wolff Welding LLC, Franklin, WI