SOHC.co.uk Forums > SOHC Singles & Twins

My first project - 1974 CB360 K0

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Oddjob:
Depends if the overflow isn't blocked for some reason, the hole is extremely small so it's quite easy for it to block.

Craizeehair:
Makes sense, I’ve taken the carbs off and will go through them again. I was considering this anyway as I recently got some fresh brass work for them which arrived after they were put back together and put back on the bike. What was in there was cleaned properly but it did look a bit chewed and worn, so hopefully they can go back on in the best possible shape.

Fingers crossed the kit I bought is ok, I know some have poor feedback.

Just wanted to say thanks again for all the replies and advice I have received, as a novice it is very much appreciated.

Oddjob:
If you take the floats bowls off again just visually check if the overflow tube sits higher than the joint flange, if it does then it will leak out of the joint before going down the tube, if the joint seal isn’t good that is, if the seal is good then it would go down the overflow tube.

Craizeehair:
I nearly had a very successful day! I stripped the carbs,  a good clean and inspection, new hardware, adjusted float heights etc and bench sync  had me putting them back on the bike, I’m even getting not too bad at fitting the push / pull cables now as I’ve had to do it a few times, air filters on etc and the bike started first time, it was revving high but sounded ok, adjusted tick over and got the carbtune pro fitted which showed it was a bit out.

With a bit of fettling I got them pretty well balanced and this is when it went a bit pear shaped, instead of accepting pretty well balanced, I kept trying to get it exactly spot on, along with adjusting tick over, it just kept getting worse. Eventually it sounded like it gave up on life, then just died and wouldn’t start again. After a bit of mucking about I decided to bite the bullet and take the carbs off, do another bench sync and start again.

I did the bench sync, which was way off when I checked but was no problem to do again as I did before. I put the carbs, air filters etc back on, gave some fuel and I now have a bike that won’t start, I have spark but it just will not fire. So I have given up for this weekend and will get back to it another day.

I’m not sure what has changed but it started first time earlier and it’s always been good for that. Anyway, that’s why I bought this bike, to get stuck in and learn a bit, so at least it’s giving me what I paid for!

A lesson for next time maybe, when it’s pretty near spot on, leave it alone?

Johnny4428:
Just a thought when you removed the carbs laterly was there any fuel in them?

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