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Author Topic: From 4 to 2, aftermarket carb kits for CB750  (Read 158 times)

Offline ChroniclyQuickly

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From 4 to 2, aftermarket carb kits for CB750
« on: Jan 12, 2017, 03:46:02 »

There are 2 major kits that I'm aware of to take out the finicky and complex 4 carb system of the CB750 and replace them with 2 simple and reliable Mukini carbs. At $500-$600, they're not quite the inexpensive option (that would be a jet kit from someone like 6 sigma) but if u want to be sure your aftermarket pipes and filters are going to work, it's a wise purchase. This is what I got, the Speed Moto Co. set, the other is from Cycle X and is cheaper by about $100 depending on pricing at any given
time. Aesthetically, the key difference is that these carbs tuck inward and the cycle x set flares out the side of the bike, leaving the filters in what can be an awkward position against your knees but being far more noticeable and race machine in appearance. The set I got is rumored to put out a little more horsepower than the cycle x version and a smoother power curve. That being said, I would do the cycle X set next time just for the look and to try them both.
These carbs are 54mm and seem to haul pretty well. They came jetted for my set up and even synced. All in all, installation was easy and to my glee, the bike fired right up on the first cycle, easier than stock.
It's an expenditure but if you want to skip the nightmare that can be CB750 carbs, pull a unique look and even (supposedly) increase hp, I would recommend it as a satisfied buyer. Maintenance on a 54mm mukini is distinctly un-intimidating.


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Online J-Rod10

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Re: From 4 to 2, aftermarket carb kits for CB750
« Reply #1 on: Jan 12, 2017, 08:48:11 »
Cycle X kit was a nightmare.

Offline irk miller

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Re: From 4 to 2, aftermarket carb kits for CB750
« Reply #2 on: Jan 12, 2017, 09:00:02 »
You have a Murrays Carbs kit.  It's the best kit for the application and he'll do you right with customer service.

Offline cxman

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Re: From 4 to 2, aftermarket carb kits for CB750
« Reply #3 on: Jan 12, 2017, 10:08:07 »
2x vm34 carbs

the air inlet size is 54mm
1978 CX650 Super Deluxe
1979 XS1100 Special
1980 XS650
1980 cx500  The Beast
1983 GL650 i
1983 cx650 Custom
1973 CB450
1973 cb750
1980 cb750
1981 cb650
1982 cb900 c
1977  gl1000
1976 gl1000 LTD
 1983 GL1100 Nekid
and a bunch of others