Vintage and Classic Hondas

82 cb750k stalling in the rain

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cpsiohio

82 cb750k stalling in the rain

Several times when I've ridden my 82 in the rain I would lose a cylinder! Anyone have any insight to what might be causing that problem?
Allen

TOOLS1

Re: 82 cb750k stalling in the rain

Administrator

I would get a spray bottle, and mist the electrical components while the bike is idling. When it starts to miss, you will know what is causing it.
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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cpsiohio

Re: 82 cb750k stalling in the rain

Great! Thanks for the suggestion!
Allen

LukeM

Re: 82 cb750k stalling in the rain

Administrator

This is interesting, as my 1979 CB750 used to miss quite badly when riding in high humidity weather. I never did figure it out: might have been a loose plug wire connection at the spark plug, might have been a icing problem with the carbs (although that's pretty remote: plenty of heat coming off the engine to keep the carbs warm). Most of the time, it's electrical.

My VT700C does well in the rain, by comparison.
Luke M

Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.

Cabreco

Re: 82 cb750k stalling in the rain

In reply to this post by cpsiohio

Do you have any visible arching in the plug wires? I would start there since you only lose one cylinder.
You may be able to see the are at night.

FIONA
1981 CB750K

Andy
Tennessee