Just did a full tune-up and rebuilt the carbs on my baby: a '78 Honda CB750K SOHC 4.
Carb rebuild was proper: separated bodies off the rack, soaked every metal part, replaced main jet, needle, gaskets, etc. Finally, bench-synched the slides.
It runs, but definitely not as well as it should be.
Symptoms: Bike starts easily with chokes closed, but revs are erratic--starting high (~3.5 - 4k rpms) and then dropping (all the way down to ~1.2k rpms) either by itself or with a little help by pushing in / closing the throttle.
With the choke in or out, any quick pull on the throttle (from idle to 1/4 throttle) causes some hesitation before finally 'kicking in.' Sometimes it just dies outright. This is only up to ~1/4 throttle, after that, the bike responds pretty well, though not perfect. I was able to improve this hesitation a bit by enrichening the mixture, but it's way too rich: intake rubbers are wet, plugs are fouled.
Help. Please. :)
2007-09-27
07:00:47
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5 answers
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asked by
spelunker
2
in
Motorcycles