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Quick Bike Carb Question

Started by hot87crx, Jul 30 2007 11:19 PM

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19 replies to this topic

#1
hot87crx
Posted 30 July 2007 - 11:19 PM

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I'm new to the crx world and i was wondering, if i put bike carbs on will i still be able to pass DEQ? If not can i make changes that will allow it to pass?

#2
rollz87civic
Posted 31 July 2007 - 01:45 AM

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If you get a windband o2 and tune it you can. Here in springfeild we havent got DEQ.....yet ph34r.gif
so when i get my clutch fixed i'm going to go bike carbs also.
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#3
jay_1gen
Posted 31 July 2007 - 11:33 AM

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Well I've got bike carb and I'm exempt from emission tests, but man this setup is pumping lots of gas throw the motor, I think you can tune it down (smaller or bike stock main jet, pilot screw to lean) just curious what carbs do you plan on running?

#4
rollz87civic
Posted 31 July 2007 - 01:32 PM

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get a jet kit and a windband o2and spend a few hours tuning.
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#5
jay_1gen
Posted 31 July 2007 - 03:41 PM

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QUOTE (rollz87civic @ Jul 31 2007, 02:32 PM) <{POST_SNAPBACK}>
get a jet kit and a windband o2and spend a few hours tuning.


No point getting a Jet Kit, the jets in it wont even be big enough for the application, call DynoJet down in Las Vagas and they send you only the parts you need, or go to a Bike dealer and depending if the carbs are Kieens or what not they'll sell you the jets you need, most likley around 160 (stock is usually 120 and jet kits mostley don't go over 135).

#6
Kurt
Posted 01 August 2007 - 04:30 AM

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Drill bits are your friend. Just make sure you got up in size a little at a time. small lathe is handy but you get away with just a drill press and a nice vice.I don't see why you couldn't tune them to pass. It dose make things a little harder. I would say at cruse my carbs are very good on fuel. Mixed driving they dont seem to use any more than the efi.

That said i don't need to pass any tests.

#7
hot87crx
Posted 01 August 2007 - 09:03 AM

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I'm not sure what carbs i'm going to use. I want something that i can get to pass with as much ease as i can. I know it's gonna be a pain but i want to give it a try. Any suggestions on carbs?

#8
jay_1gen
Posted 01 August 2007 - 09:35 AM

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QUOTE (hot87crx @ Aug 1 2007, 10:03 AM) <{POST_SNAPBACK}>
I'm not sure what carbs i'm going to use. I want something that i can get to pass with as much ease as i can. I know it's gonna be a pain but i want to give it a try. Any suggestions on carbs?


Well i've got 94 CBR 900RR carbs but they were a !@#$% to get wright, try Kurt's setup I think his had some pretty good seccess will little modification. What motor are you using? D15 or ZC

#9
hot87crx
Posted 03 August 2007 - 11:09 AM

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I've got a D15 out of an 85 cxr si. I'm going to rebuild it and then swap it. Hopefully with a bike carb setup.

#10
jay_1gen
Posted 03 August 2007 - 11:30 AM

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QUOTE (hot87crx @ Aug 3 2007, 12:09 PM) <{POST_SNAPBACK}>
I've got a D15 out of an 85 cxr si. I'm going to rebuild it and then swap it. Hopefully with a bike carb setup.

Well that meens you have time I'll send you a full wright up on everything you need to do if you want to use the same setup I have. Jet sizes and everything.

#11
hot87crx
Posted 03 August 2007 - 01:22 PM

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That would be awesome.

#12
hot87crx
Posted 11 August 2007 - 12:28 AM

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Does anyone know how much horsepower i should get if i use bike carbs? WHat about gas mileage?

#13
rollz87civic
Posted 11 August 2007 - 01:12 AM

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your going to notice a lil power diff but nothing crazy.. MPG it should be about the same as long as your fotts not in it..
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#14
hot87crx
Posted 11 August 2007 - 01:18 AM

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before i rebuild the motor what are some easy ways to get more power? I'm not looking for huge amounts just little things i can do to give it a little more.

#15
rollz87civic
Posted 11 August 2007 - 01:48 AM

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Well i would start with a good Exhaust systeam a hearder and maybe a cam ,camgear.
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