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Bike running rich?

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Kylemichael

Bike running rich?

I have a 76 750f running keihin carbs 120 mains and 40 slow pilot screw turned 1.5 out. Carbs have been cleaned out many times. My problems is after swapping out spark plugs I get about 5 good minutes of ride time before the plugs foul and bike starts to run like garbage. Have to keep the rpm up when idling, blipping the throttle bike sounds like it wants to bogg out. I'm going to get a timing light today to check my timing as well as a volt meter to check coils. Anything else I should be checking or looking at to fix this issue?

TOOLS1

Re: Bike running rich?

Administrator

Compression.
TOOLS

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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
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shinyribs

Re: Bike running rich?

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TOOLS1 wrote

Compression.
TOOLS

^^^ Bam.