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591 Posts
Hello!
Figured I needed a distraction from my CL 175 K4 basket case, so dad and I went out and got it a friend - CL 350 K5. It's a little rough around the edges, needs a lot of course, but dad's buying all the parts on this one so we're going with all NOS
So I've begun ordering a few things that it needs, such as a new oil drain plug (old one is stripped down a circular shape).
So anyways the most pressing issue that I'm facing (besides the question of when the oil was last changed...?) is the bike wont rev past 4,500 RPM. I was riding it around the neighborhood yesterday and noticed that it tops out around there in every gear. Haven't run it on the stand but that's how it behaves under load. I figured it was a carburetion problem or an air filter / air leakage problem. Then this morning we pulled the old plugs. The left plug was blackened which I understand to indicate a rich condition (as evidenced by the occasional pops coming from those beautiful side pipes). The right plug was pretty white, which I understand to indicate a lean condition. I have no yet been able to look at the air / fuel system.
Is it possible that the revs are being limited by the lean condition on cylinder #2? I will be rebuilding the air filters (lets hope I don't open it up to find that the right side is missing one altogether). And at that time I will also rebuild the carbs.
Figured I needed a distraction from my CL 175 K4 basket case, so dad and I went out and got it a friend - CL 350 K5. It's a little rough around the edges, needs a lot of course, but dad's buying all the parts on this one so we're going with all NOS

So I've begun ordering a few things that it needs, such as a new oil drain plug (old one is stripped down a circular shape).

So anyways the most pressing issue that I'm facing (besides the question of when the oil was last changed...?) is the bike wont rev past 4,500 RPM. I was riding it around the neighborhood yesterday and noticed that it tops out around there in every gear. Haven't run it on the stand but that's how it behaves under load. I figured it was a carburetion problem or an air filter / air leakage problem. Then this morning we pulled the old plugs. The left plug was blackened which I understand to indicate a rich condition (as evidenced by the occasional pops coming from those beautiful side pipes). The right plug was pretty white, which I understand to indicate a lean condition. I have no yet been able to look at the air / fuel system.
Is it possible that the revs are being limited by the lean condition on cylinder #2? I will be rebuilding the air filters (lets hope I don't open it up to find that the right side is missing one altogether). And at that time I will also rebuild the carbs.