Oil leak from behind crankshaft seal. 1980 cb900f/c.

Posted by Keegster96 on Aug 09, 2018; 9:24pm
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Oil-leak-from-behind-crankshaft-seal-1980-cb900f-c-tp4063666.html

Hey guys,

Hoping someone can help me. Just finished building a cb900f out of cb900c, was running great, but now I seem to have an oil leak from behind the rotor on the alternator (aka the right side of the crank shaft) seal but it's from the center not outside of the seal. It only seems to be the thin oil and only leaks after I start it. Could there be a clog in the oil system mamarking the oil pressure rise up? How would I trouble shoot this??