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Good aftermarket carb recomendation? 1981 CB900

19689 Views 10 Replies 5 Participants Last post by  jaguar
Hey everybody,

I picked up a freebee CB900C not too long ago and found that it was in better condition then I thought! The engine turns with no problem, spark seems good, and the rust isnt all that bad. And the electronics also work completely fine! Its like nothing went wrong! The only areas that really need work are the brakes and the carbs. Right now, I've slowly been rebuilding each carb on it and am getting pretty sick of all of the vacuum operation that this thing relies on. Down the road, I'd really like to upgrade to a more simple and higher performance set of carbs.

The bike is an '81 so it has the newer DOHC setup. Are there any decent aftermarket carbs that will go on this thing? And has anybody put a set of cone air filters on them? I'd like to do that too, I really like the look.

Any help is appreciated!
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midway down the page, you want the CR31mms for a 900:


the CV carbs honda fitted to these bikes are absolute shit. I have never felt they worked well and esp on the 900 the throttle response is slow, even when they work perfect. There have been guys who have fitted the smaller cb750C/K/F carbs to the 900F because even though they gave up some top end the carbs got more responsive for mid range city riding. Sure good carbs cost real money, but they are worth it, and Kehin CR's are the best. Seriously, if you want to throw money at the solution - here is the best solution and the best value.

If you want to run stock carbs, don't waste your time with pod filters, K&N makes a replacement air filter for these bikes that fits in the stock airbox. People think the airbox is restrictive but really it isn't, and it is essential for smooth around town running.
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