SOHC.co.uk Forums > CB500/550
Partially Restored 74 CB550
davidcumbria:
Sorry Bryan my late night memory was playing up mains are definitely 100 ( not 105) and I’m pretty sure pilots are 38 but not more than 40. My chart says recommended jetting for k1 is 100/ 40
deltarider:
For those interested in the recommended settings (Honda) back then, consult the overview attached. It has been out for years and has not been challenged so far. It does NOT deal with aftermarket parts.
davidcumbria:
Thanks DR so my jetting looks ok given delkevich state no changes needed . Needle position is 4 th. Is that from top or bottom ?
deltarider:
As far as Honda carbs, always from top, not from tip.
davidcumbria:
I redid the plug cap/lead connections and also opened the idle air screws to 2.25 turns out. Another test ride ( lucky with the weather ) and I'm delighted to report thats done the trick for now. ;D ;D ;D
Picks up with out significant hesitation from below 2k revs when opening throttle and revs cleanly to 5 k which is as far as i want to take it for now. Love the way it picks up from 30 mph in 5th gear 1500 rpm and no stuttering. cylinder no 1 plug is still sooty and my temperature gun shows it running cooler than the the other three cylinders but more than happy enough for now with how its running.
Hearing the engine idling so so quiet and smooth for the first time outside the garage is just a joy after being knee deep in knackered shells, jammed gearbox and damaged crankcases at the start of this thread. link to video of the bike below. I have a little play with the idle adjuster to show it running smoothly at the bottom of the rev counter,
Just waiting for my seat trim. have decided not to put a strap over the seat as it would not match the slightly aged cover. the chrome could be better on the rear mudguard/ light but I actually quite like the non mirror dazzling patina and it works well with all the shined up stainless steel bolts i have fitted. Many thanks to all on here who have coached, encouraged and provided parts along the way.
looking forward to riding the bike and meeting up with some of you this year.
https://youtu.be/0GzZUrDeHhU
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