jamesonant
New Member
Hey all,
I have a CB360 which I had just gotten running really well (did timing, cam chain tension, valve adjustment, inspected and replaced carb. diaphragm, rebuilt clutch etc.) and just bought insurance for. I rode it early last week and it ran great, I went to ride it 2 days later and it started and ran on one cylinder. I checked the plugs and they were fouled and have since done a compression test. I found that the left cylinder is compressing slowly and is getting up to between 15 or 20psi less than the right cylinder. Also, when it does start the left cylinder barely heats up and smells of raw fuel. I fear that I may need to tear into the engine and replace the piston rings. Is there anything I can check to decide whether or not this is necessary, or should I just resign myself to the fact that the motor needs to be pulled. Furthermore are there any specialty tools besides a piston ring compressor that will make this job easier. This will be my first time really tearing into a small bike motor and while I have a fairly good understanding what needs to be done and will have help if necessary, any advice and suggestions would be greatly appreciated!!!! My hope is that I can do what needs to be done and salvage at least some of the quickly shortening Rhode Island riding season.
Thanks
I have a CB360 which I had just gotten running really well (did timing, cam chain tension, valve adjustment, inspected and replaced carb. diaphragm, rebuilt clutch etc.) and just bought insurance for. I rode it early last week and it ran great, I went to ride it 2 days later and it started and ran on one cylinder. I checked the plugs and they were fouled and have since done a compression test. I found that the left cylinder is compressing slowly and is getting up to between 15 or 20psi less than the right cylinder. Also, when it does start the left cylinder barely heats up and smells of raw fuel. I fear that I may need to tear into the engine and replace the piston rings. Is there anything I can check to decide whether or not this is necessary, or should I just resign myself to the fact that the motor needs to be pulled. Furthermore are there any specialty tools besides a piston ring compressor that will make this job easier. This will be my first time really tearing into a small bike motor and while I have a fairly good understanding what needs to be done and will have help if necessary, any advice and suggestions would be greatly appreciated!!!! My hope is that I can do what needs to be done and salvage at least some of the quickly shortening Rhode Island riding season.
Thanks