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CB650 / 650SCC Carbs
« on: June 07, 2010, 08:52:17 PM »
Hi
In a moment of insanity I ended up bidding on an 82 650SCC, and after the shock of winning I arranged to get the bike delivered.
A non runner - electrics shot to hell, tank full of rust, 30000miles, but otherwise all there.
Well I've sorted the electrics - rewiring, re-routing etc and got the engine to run, problem is that without the choke it immediately races to 5500 rpm. With full choke drops to 1000rpm or stalls. Will rev cleanly, no pops or bangs (well not after cleaning the carbs 3 times and putting iridium plugs in) but I cannot get the engine speed down.
All clearances and timing checked, new air filter fitted.
Any suggestions gratefully rec'd. It uses the Keihin CV carbs without a rubber diaphragm, and I'm feeding it nice, new, clean fuel via a funnel.
In a moment of insanity I ended up bidding on an 82 650SCC, and after the shock of winning I arranged to get the bike delivered.
A non runner - electrics shot to hell, tank full of rust, 30000miles, but otherwise all there.
Well I've sorted the electrics - rewiring, re-routing etc and got the engine to run, problem is that without the choke it immediately races to 5500 rpm. With full choke drops to 1000rpm or stalls. Will rev cleanly, no pops or bangs (well not after cleaning the carbs 3 times and putting iridium plugs in) but I cannot get the engine speed down.
All clearances and timing checked, new air filter fitted.
Any suggestions gratefully rec'd. It uses the Keihin CV carbs without a rubber diaphragm, and I'm feeding it nice, new, clean fuel via a funnel.