Vintage and Classic Hondas

CB750F Exhaust too low

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Dannymack

CB750F Exhaust too low

Anyone have issues with rubbing on hard turns? I have a Vance 4-1 system that rubs at the collector on hard right turns. It gets a little dangerous and keeps me from really enjoying the bike on some good ole Colorado mountain roads. Any way to fix it?

82 CB750F - Bought from neighbor who had it since new and only had 9k on the clock.

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Re: CB750F Exhaust too low

Administrator

Welcome to the forum. The Vance, and Hines systems are known, for rubbing/scrapping. Raise the bike, or install a skid plate.
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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
South of Eden (Kansas City MO)

sgtslag

Re: CB750F Exhaust too low

In reply to this post by Dannymack

A skid plate won't prevent loss of traction. ...And control! Raising the suspension alters the handling. Exercise great care.

1979 CB750K (sold, 2012, but not forgotten)
1983 Kawasaki 440 LTD Belt Drive (sold, 2011)
1993 Kawasaki Voyager XII

shinyribs

Re: CB750F Exhaust too low

Administrator

The skid plate sounds like a good idea,until you think about the tires lifting off the pavement...especially in that kind of situation!Yeah,I'm with Sarge...be careful

Dannymack

Re: CB750F Exhaust too low

Two questions then. Which of the aftermarket offerings has been known to cause the least amount of rubbing? Also if I do get my current exhaust modified to get the collector to be less obtrusive, what areas of the lower engine (if any) should I keep the heat away from?

Thanks,
Dan

82 CB750F - Bought from neighbor who had it since new and only had 9k on the clock.

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Re: CB750F Exhaust too low

Administrator

The MAC exhaust is a pretty well designed unit. As, for heat on the bottom of the engine, that is not an issue. Don't worry about that.
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