Discussion Starter · #1 ·
Hello, this is my first post after going through tons of forums helping me fix up my cb350, but I have hit a barrier and cannot seem to find anything on it. So, I bought a '71 cb350 which ran but not well and would require me to fight with it. It would start after fighting it, but struggling idling. If it did idle it would die after driving it in my neighborhood and going back to a stop. I cleaned both carbs, bought new spark plugs and boots, new ignition points, new condenser, new battery, timed both cylinders, and tuned both carbs. The bike starts up much easier now, but I noticed that the left exhaust pipe feels weaker than the right and after cleaning the left carb again it does not warm up. When I adjust the idle screw on the left carb it does nothing to the idle of the bike, only the right idle screw affects it. Both points seem to be getting spark. I unplugged the left spark plug boot and tried starting up the bike. The bike started right up as if nothing changed. I then tried it the other way around (right boot unplugged left boot on) and the bike would not even start. I am not sure if it is a fuel issue, compression issue, or spark issue. I do know that the bike runs much better if I add SeaFoam motor treatment into it, but after about 30 mins of idling and short riding it will turn off (compared to usual 5 mins). Any ideas on what I should be looking at? If anyone has questions feel free to ask.