Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: royhall on March 22, 2024, 03:36:27 PM

Title: CB750K5 Air screws
Post by: royhall on March 22, 2024, 03:36:27 PM

Just wondering what the opinions are on this. The Honda manual for the CB750K5 says that the air screws should be backed out 1 turn +-1/8. I have in the past had to go to 2 turns out to get a 750 running correctly. Some of you have far greater experience of the 750 than me, just wondering what you think. Cheers.

Title: Re: CB750K5 Air screws
Post by: Pauarc on March 22, 2024, 03:47:02 PM

Got me mixture set at 1 3/4 give me a good plug colour

Title: Re: CB750K5 Air screws
Post by: Martin6 on March 23, 2024, 04:59:17 AM

I'm at 1 turn out. Slightly sooty if I'm caught in traffic or just idling, but nice colour when I've been on a run.

I live up twisty country lanes, middle of nowhere. I'm not able to run the bike on brand new plugs, WOT for a mile, then hit the kill switch, to do a proper plug chop. I've used plug condition as just a bit of a guide if I'm experiencing problems, like hesitation, flat spots etc. So, if you're running nicely at 2 turns out and plugs are happy between services, personally, I'd call that a 'win' and leave well alone  :)