dmonaghan
New Member
Hi all, new here from RI
I picked up an all original 72 cb350f a back in march with 40k miles. Had a local shop here rebuild the top end and crack the cases.. rings.. cam chain...valves.. carb rebuild.. fresh plugs.. wires..coils..and electrical.. brakes.. cables.. new everything.. really went through the whole bike. Put a dyna-s ignition in and a few other things. Bike runs awesome... have about 550 miles on it since the rebuild.. will do 90 mph+ easy.. I did a few cosmetic changes and cleaned her up real nice. I have SOOO much money and time into this bike and I know ill never get the value back.. but ive been looking for a 350f for 10 years.. and finally found the one i wanted. Countless hours polishing up the engine covers and components.. this bike is like my second wife at this point
problem is .. im getting a lot of oil smoke coming out of the right side exhaust.. after the bike gets hot I also get A LOT of smoke from the crank case vent. So much from the crank case vent.. especially when I was idle at a stop light...a police officer actually pulled up next to me and was concerned the bike was on fire! The shop kept telling me it was normal and to keep putting miles on it. After bringing the bike by the shop about 15 times they finally agreed to pull the top end off. I thought for sure that an oil ring had cracked allowing the blow by. Compression was perfect in all four cylinders.
Here is a picture of the pistons after they just opened it up.. they told me there is nothing wrong with the rings and everything looks great... take a close look at that far right piston.. it looks fried to me.. anyone have suggestion. The shop told me to order some new rings just to be sure.. but maybe it is the valve seals.. or lap?
I was getting a tiny bit of smoke out of the left side exhaust.. very very minimal.. but the right side would be huge poofs that only got worse as the bike warmed up... and the crank case vent looked like a 2-stroke scooter exhaust. Any help would be great thanks in advance! I have included some pictures of the bike. Don't hate on the clubmans.. im still a young and sprightly 30 years old
I picked up an all original 72 cb350f a back in march with 40k miles. Had a local shop here rebuild the top end and crack the cases.. rings.. cam chain...valves.. carb rebuild.. fresh plugs.. wires..coils..and electrical.. brakes.. cables.. new everything.. really went through the whole bike. Put a dyna-s ignition in and a few other things. Bike runs awesome... have about 550 miles on it since the rebuild.. will do 90 mph+ easy.. I did a few cosmetic changes and cleaned her up real nice. I have SOOO much money and time into this bike and I know ill never get the value back.. but ive been looking for a 350f for 10 years.. and finally found the one i wanted. Countless hours polishing up the engine covers and components.. this bike is like my second wife at this point
problem is .. im getting a lot of oil smoke coming out of the right side exhaust.. after the bike gets hot I also get A LOT of smoke from the crank case vent. So much from the crank case vent.. especially when I was idle at a stop light...a police officer actually pulled up next to me and was concerned the bike was on fire! The shop kept telling me it was normal and to keep putting miles on it. After bringing the bike by the shop about 15 times they finally agreed to pull the top end off. I thought for sure that an oil ring had cracked allowing the blow by. Compression was perfect in all four cylinders.
Here is a picture of the pistons after they just opened it up.. they told me there is nothing wrong with the rings and everything looks great... take a close look at that far right piston.. it looks fried to me.. anyone have suggestion. The shop told me to order some new rings just to be sure.. but maybe it is the valve seals.. or lap?
I was getting a tiny bit of smoke out of the left side exhaust.. very very minimal.. but the right side would be huge poofs that only got worse as the bike warmed up... and the crank case vent looked like a 2-stroke scooter exhaust. Any help would be great thanks in advance! I have included some pictures of the bike. Don't hate on the clubmans.. im still a young and sprightly 30 years old