hbrown7332
CB750 New member
On my 1972 CB750K1, cylinder #4 is running cool enough that I can wrap my hand around the exhaust pipe. All other cylinders and systems are running ok. I swapped out the spark plug and it is not the problem. Visually the spark looks normal. No carbon deposits are building up on the plug -- it looks new out of the box (but it isn't).
I'm pretty sure the problem is carburetor but haven't figured out how to tell for sure. And if it is carburetor, I'm not eager to pull the carbs out and do a rebuild.
So my question is, does this sound like a carburetor problem, and if so, is there any reason NOT to dump a half can of Gumout carburetor cleaner into the gas tank and see if that makes any difference?
Thanks...
I'm pretty sure the problem is carburetor but haven't figured out how to tell for sure. And if it is carburetor, I'm not eager to pull the carbs out and do a rebuild.
So my question is, does this sound like a carburetor problem, and if so, is there any reason NOT to dump a half can of Gumout carburetor cleaner into the gas tank and see if that makes any difference?
Thanks...