Rebuilt engine only firing on one side

[stelrad]

Just to thank everyone for their assistance. Bike now runs really well. Ended up buying another pair of carbs from Ebay in the US. The pictures on Ebay looked better than they actually where though. The new carbs had chrome sliders whilst the old ones did not have any sign of any chrome. Not sure if this was the problem - air leaks? Fitted the carb recon kits from the previous carbs plus a couple of NOS floats and bought some new O rings. I think the problems I had was a combination of a few things. I tweaked the timing on the left cylinder as well as I think the timing was slightly advanced. Might invest in a strobe light. Once again thanks to all.

[e3steve]

In my experience, albeit relatively limited, a strobe timing light is really only good for revealing knackered advancer springs or cam sprocket train (rivets, etc.). The most accurate method of timing the ignition, for us, is the static method á la Ed Moore's Tuning Recipe in h305 homepage>FAQs.

[e3steve]

In my experience, albeit relatively limited, a strobe timing light is really only good for revealing knackered advancer springs or cam sprocket train (rivets, etc.). The most accurate method of timing the ignition, for us, is the static method á la Ed Moore's Tuning Recipe in h305 homepage>FAQs.

That said, a strobe timing light is an essential tool for the home-maintainer; the spark advance must be monitored on a regular basis in order to keep the internals from meltdown. Bill Silver prescribes maximum advance to be 43º-48º, whilst the original Honda shop manual recommends 37º-43º being the absolute max-advance, @3300rpm, before internal intervention is required.

I'm sure that if I've got this wrong then Ed will provide us with his experiences on this particular subject.

Please remember that I'm a physicist and my field is electrical & electronic engineering. I have several Honda, Silver and aftermarket publications which I search diligently for answers to forum questions. By default, my background empowers me with a logical outlook, but not necessarily with the experience and knowledge that Ed Moore (LM) can share. Honda 305 is our universe, Ed, to me/us, is the h305 God; I'm merely one of the disciples.