4-1 intake manifold kz750

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05 Oct 2011 19:57 #481573 by forst84
4-1 intake manifold kz750 was created by forst84
ok... im the guy that was gonna beat his cv carbs with a ball peen hammer. i didnt do that, but for now, i am trying something else. i made a 4-1 intake manifold for a harley CV carb. only question is: where do i start with the jetting? the harley cv has a 145 and a 75 in it right now, it was set up for an evo. should i just go for half that? do i need to jet it to feed all 750 cc at once or just 375cc (since only 2 cyl fire at the same time). no idea. just looking for thoughts, insults, funny anecdotes that relay the stupidity of guys who fuck with perfectly good machines just to be cool, etc...
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05 Oct 2011 23:53 #481607 by elfmagic17
Replied by elfmagic17 on topic 4-1 intake manifold kz750
Realisticly your only feeding one cylinder at a time, but bigger carb than stock, (CFM) not sure but probably would need jetted down at least a little. If I had to guess, I'd say around 105 or 110 on the main, maybe 55 or 60 on the pilot. You will most likely have to run it and see what the plugs look like after the test runs and adjust from there.

Kenny Hicks
74 Honda CB550
75 Honda CB360 (runs and rides good but not a show bike)
77 KZ650B1 (Runs Great, but needs painted and a little work.)

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05 Oct 2011 23:55 #481608 by elfmagic17
Replied by elfmagic17 on topic 4-1 intake manifold kz750
Also, may want to put what your working on in your Sig, makes it easier to respond to what your working on.

Kenny Hicks
74 Honda CB550
75 Honda CB360 (runs and rides good but not a show bike)
77 KZ650B1 (Runs Great, but needs painted and a little work.)

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