AboutBill Silver Expertise Need help with vintage Hondas from the 1960s? I am an expert with 250-305cc bikes in particular and most all of the other pre-91 models, in general. I do NOT claim to have a great deal of experience on Gold Wings, Cruisers, ATC/ATVs and dirt bikes.
Experience I have owned/ridden/maintained Honda motorcycles for 35 years. I have written five books on Honda repairs and collecting. I was a service manager for two Honda shops back in the 1980s.
Organizations VJMC (Vintage Japanese Motorcycle Club) of North America
Publications VJMC newsletter, as editor for two years and as contributing editor currently.
Question Just finished restoration. Bike idles well,& runs well on the road for about 1-2 minutes and then looses power. I can tell it is the right side carb.(which was rebuilt)is either not getting enough or too much fuel. When this occurs, I stop and let it idle for a minute and it clears up, only to occur again once on the road for 1-2 minutes.??
Answer John, be sure to take a small drill bit to all the passageways inside the petcock to ensure that there is equal flow to both carburetors.
The other thing that is often overlooked is that the gas caps have a tiny vent hole that can get clogged up, causing a vapor lock in the fuel tank, which stops/restricts the fuel delivery.
I am assuming that you full disassembled the carburetors, removing the float valve seats and cleaning out the passageways behind the seats. Also, the air bleed passages in the carb throat need to be checked for blockages, which can cause metering problems. ALL o-rings in the carburetor need to be replaced when renewing each unit.
