nnichols211
New Member
Hey guys,
I just picked up a cb360 a few weeks ago. Bike would only run one one cylinder when I got it. I though it was timing so I checked the points and the timing was advanced a slight bit from where it was supposed to be. I set the timing back a little bit so that the timing light would come on when the stationary timing mark lined up with the fire ("F") mark on the alternator cover. Still would only run one one cylinder. Traced it back to that one cyclinder wasn't receiving any fuel. Took the carbs off, cleaned the gunked up float valve so that the bad carb could receive fuel again. Cleaned the fuel tank, derusted the tank, inline fuel filters. Bike fires right up now, but I went to take it for a little test ride yesterday and the bike is very surgy when accelerating. Accelerates fine up to about 3500-4000 rpm, then lags and wont accelerate further until I give it more throttle at which point it jumps and accelerates like a bat outta hell. My two thoughts at this point are:
1) I need to advance the timing back to where it was (which would be ahead of the fire mark)
2) Carbs are not mixed properly, synched properly, cleaned all the way, etc. ( I did do a bench synch and thought I cleaned them fairly well with the spray can carb cleaner, I have not touched the air screw or anything at this point, just adjusted the idle sped to about 1300.)
The one thing that makes me think its a carb problem is that it seems to run much better with the choke on and seems to accelerate like it should. Any thoughts or help would be appreciated.
Nick
I just picked up a cb360 a few weeks ago. Bike would only run one one cylinder when I got it. I though it was timing so I checked the points and the timing was advanced a slight bit from where it was supposed to be. I set the timing back a little bit so that the timing light would come on when the stationary timing mark lined up with the fire ("F") mark on the alternator cover. Still would only run one one cylinder. Traced it back to that one cyclinder wasn't receiving any fuel. Took the carbs off, cleaned the gunked up float valve so that the bad carb could receive fuel again. Cleaned the fuel tank, derusted the tank, inline fuel filters. Bike fires right up now, but I went to take it for a little test ride yesterday and the bike is very surgy when accelerating. Accelerates fine up to about 3500-4000 rpm, then lags and wont accelerate further until I give it more throttle at which point it jumps and accelerates like a bat outta hell. My two thoughts at this point are:
1) I need to advance the timing back to where it was (which would be ahead of the fire mark)
2) Carbs are not mixed properly, synched properly, cleaned all the way, etc. ( I did do a bench synch and thought I cleaned them fairly well with the spray can carb cleaner, I have not touched the air screw or anything at this point, just adjusted the idle sped to about 1300.)
The one thing that makes me think its a carb problem is that it seems to run much better with the choke on and seems to accelerate like it should. Any thoughts or help would be appreciated.
Nick