I need some good advice! CM400

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Bizmal
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My Motorcycle: 81 Honda CM400C

I need some good advice! CM400

#1 Unread post by Bizmal »

I purchased an 81 Honda CM400 that didn't run for cheap. After cleaning out the carbs and a few other things I've finally got it running! Yay for me. I have two questions.

I don't like the way the bike sounds, I want it to have more rumble to it but I don't want it to be loud. People are talking about straight pipes, slip ons, something about baffles and drilling. Where do I start and what are my real options? I don't want to rig anything up.

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Johnj
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Re: I need some good advice! CM400

#2 Unread post by Johnj »

Dude, it is what it is, you can try putting more open pipes on it but it isn't worth the rejetting and other problems you end up with. Ride brother, ride.
People say I'm stupid and apathetic. I don't know what that means, and I don't care.
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GS_in_CO
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Re: I need some good advice! CM400

#3 Unread post by GS_in_CO »

Tinkering is one way to learn about stuff but sometimes what you'll learn is that no amount of tinkering will accomplish what you want when you start with the wrong materials.

Are there ANY 400cc bikes that 'rumble?' If so, can you figure out how that's accomplished?

Tinkering that bike into a reliable, safe vehicle is great.

Learning to ride it really well will serve you better in the long run than taking a sidetrip down exhaust modification lane.
Ron

Current: 1988 BMW R100GS (the 'numberplate' model)

Past: 1987 Yamaha XT350
1983 Honda CB900F
1980 Honda XL185S
1979 Suzuki GS425E

Bizmal
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Re: I need some good advice! CM400

#4 Unread post by Bizmal »

Yes, I've seen several CM400 bikes that rumble. I'll figure it out.

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Johnj
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Re: I need some good advice! CM400

#5 Unread post by Johnj »

Ok maybe you'll be the guy that gets a CM400 to sound just like a Harley. Good luck.
People say I'm stupid and apathetic. I don't know what that means, and I don't care.
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Always wear a helmet, eye protection, and protective clothing. Never ride under the influence of drugs or alcohol.

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