FCR carb with no choke? Can I install one? - Suzuki Z400 Forum : Z400 Forums
 
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post #1 of 8 (permalink) Old 10-15-2019, 06:13 PM Thread Starter
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FCR carb questions!

Bros


Was stoked to get a decent deal on a flat side 39, Looked like it was missing the pull choke, but I figured it wasnt a big deal to slap one in.



Just got the carb and there is no way to screw in a pull choke...? Am I missing another insert of something of that sort?


I know ...another FCR thread, sorry I searched and didnt see anyone talking about such issue. Any help is appreciated!






Last edited by QuadSnort; 10-19-2019 at 07:54 PM.
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post #2 of 8 (permalink) Old 10-15-2019, 06:24 PM
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Gotta find what model it came from and find a choke that fits it. Iím hoping that isnít from a quad-carb setup on a sport bike.

'05 Z
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.
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post #3 of 8 (permalink) Old 10-16-2019, 11:41 AM Thread Starter
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Got a pretty quick reply from Sudco:



Those carburetors are available in choke and non choke models, your
carburetor is a non choke model and one can not be added. Before you
start your quad, twist the throttle a couple times to prime the
cylinders and then press the start button.


So there is no choke.



Is this why it looks like there is no 3rd pilot hole?

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post #4 of 8 (permalink) Old 10-16-2019, 12:01 PM
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Probably, the choke circuit would have to draw fuel from somewhere. They arenít really a ďchokeĒ, more of an enrichment circuit that adds more fuel.

'05 Z
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.
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post #5 of 8 (permalink) Old 10-19-2019, 07:56 PM Thread Starter
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Can you tell me how this seal goes on the slide? Seems sides are not the same?


Also does it lay flat around the ring?




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post #6 of 8 (permalink) Old 10-19-2019, 11:24 PM
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I believe mine was on like the second pic, but no idea if that was right. It was worn out anyway, so I just rtvíed them together. Never had an issue.

'05 Z
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.
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post #7 of 8 (permalink) Old 10-19-2019, 11:48 PM Thread Starter
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Looks like you were right, slipped right under there.



I was able to get it tore down and check the jet numbers








Unfortunately the one was not marked.

I only have open filter and full exhaust, hopefully its not too much jet.

Put the 200 1 turn out. Fuel screw 2 turns out.OCEMN needle on the 3rd clip.


Any info or advice is greatly appreciated.
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post #8 of 8 (permalink) Old 10-20-2019, 01:38 AM
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Depends on your elevation, but both seem a little big. Definitely wouldn’t go any bigger. Bounce it off the jetting database and it should get you close. The other 2 are probably the leak jet and air jet. Shouldn’t need to change them.

'05 Z
94mm bbk, +4 stroker, Hot Cams, Vertex piston, FMF Power Bomb header and Power Core can, KW black diamond valves/dual springs, FCR39, K&N, Elka long-travel LT fronts and rear, Houser +3, +3/4 LT A-arms, American Star pro xs chromoly tie rods, Dyna non-programable, Tusk +3 axle.

Last edited by jetmech25; 10-20-2019 at 01:41 AM.
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