data.3news-bydate.train.rec.motorcycles.105107 Maven / Gradle / Ivy
From: [email protected] (Britt Park)
Subject: Power Loss under load of a Honda CB360T
Keywords: Honda CB360T power loss carburetion jets timing
Organization: DSG, Stanford University, CA 94305, USA
Lines: 24
I have a 1974 Honda CB360T which for most of my purposes runs well.
However I expereince a severe power drop at cruising speeds under load.
That is, on a mild upgrade @ 50 mph in 4th or 5th I'm lucky if I can
hold speed. If I try to add throttle much past 5000 rpm, power drops
drastically. Put simply, under load, the engine won't rev past 5000
rpm. The top third/half of the throttle range is dead. Standing still
the engine runs fine up to red line (9-10K).
Other phenomenology: at about the point that power loss kicks in, the
engine becomes a little wavery. That is, at a steady throttle the
engine speed goes up and down slightly. The bike has about 13000 miles
on it and is in good tune, at least until it starts to balk.
I would appreciate any suggestions as to what's ailing the poor beast.
My thoughts run toward clogged jets and/or improper spark advance. I'm
hoping it's not something more drastic since the bike's not really worth
the hassle of any major engine work.
Thanks,
Britt Park
[email protected]