SOHC.co.uk Forums > CB350/400
400/4 is popping & banging with poor mpg where to start?
K2-K6:
It'll be faster now Ted with all the plugs in the right order ;D
And should be about 50~60 mpg.
McCabe-Thiele (Ted):
I will definitely need a couple of longer leads probably go for some proper caps too.
Anyone have a link to the right type of cap presumably screw on ends from a trusted source?
Is the angle of all four caps the same please?
Still can't get my head round the fact that the bike would even run on two cylinders - my feelings of stupidity will ease with the passing if time as long as I am not reffered to as "Two Cylinder Ted" for too long. lol
Matt_Harrington:
NGK, I suppose, would be the correct ones - DSS seem to be as good a value as anyone else. I think they were out of out of stock of the 2 & 3 red ones last week but that may have changed.
Matt
Spitfire:
An easy mistake to make it would be logical for the leads on one side to go to the cylinders on the same side, but we live and learn, and that's what life is all about.
Cheers
Dennis
McCabe-Thiele (Ted):
--- Quote from: K2-K6 on June 18, 2022, 08:48:39 AM ---
--- Quote from: cbxman on June 18, 2022, 06:41:49 AM ---Ted,
1 and 4 on one coil. 2 and 3 on the other. (CB750). Almost certainly all the fours will be like this.
Jerry
--- End quote ---
Well spotted Jerry, yes you're correct and I think for all the Japanese fours ever made which all do this.
Ted, you'll not be the first as many others have done this over the years too including my local bike shop years ago. They asked me to look with them at a problem bike that they could not sort, they'd done exactly this, :-[ all round.
--- End quote ---
Nice to know I am in good company K2-K6.
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