Questions tagged [cb400]

a Honda motorcycle; various models were produced from 1975 - 2006.

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CB400 rpm problem

I have a Honda cb400, its old but still working fine but i’m having problem with its speed. Even if you hit the gas, the rpm is low(can’t tell exact rpm since the gauge is broken). But when i ride her ...
6
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3answers
6k views

Honda CB400 Super-Four - Power Issue

I have a Honda CB400 Super-Four. My bike starts and rides but I can't get more than 5000rpm out of her. If I do then she floods and cuts out. Two of her exhaust pipes are cold and two are warm. ...
2
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0answers
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honda cb400 super four speed/power issue

Firstly, I have checked a similarly titled post (Honda CB400 Super-Four - Power Issue) and their symptoms are different so it's not relevant to me. My bike is a '97 CB400SF, all stock except for ...
1
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2answers
3k views

Why does the radiator fan start after riding 15 minutes?

I bought Honda CB 400 SF, version S, used motorcycle. When I ride for about 15 minutes, the radiator fan starts running. While I am driving my legs felt warm air from engine. I am wondering if the ...
3
votes
1answer
5k views

Motorcycle Front Forks: Fork tube stuck in bottom pipe - clunking sound when trying to remove

I'm rebuilding the forks on my CB400 project bike [ turning into a street tracker ;) ] The process from the manual is pretty straight forward: 1) Remove the front fork bolts and drain oil 2) With ...