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Question about Carbs for 2 strokes


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rc46

 
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Question about Carbs for 2 strokes

Wed May 17, 2006 2:02 pm » Post: #1 » Download Post

Can i use carbs from a 4 stroke on a 2 stroke? are carbs on a 2 stroke diffrent in some way, forget about jetting as i can get that done, but the oil is mixed in the crankcases right? so surly a decent set of 4 stroke carbs would work? and if i go pre mix its just a case of rejetting, or are we limited by width and size etc? im only asking as the ns4 carbs look like any other and the oli tubes seem to be in the carb manafold (rubber bit) so was thinking of some diffrent carbs for the bike and if i could get some cheaper from a 4 stroke bike that would be great! sorry if ive asked a dumb ass question but at this stage i dont know whats what!
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mick

 
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Wed May 17, 2006 2:42 pm » Post: #2 » Download Post

No as the majoroty of 4t's use the engines vacuum to lift the slides 2t's use the cable.
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Dave Ett
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Wed May 17, 2006 4:27 pm » Post: #3 » Download Post

I guess flatslides from a ZXR750SP might work. The variations in length, diameter, venturi effect, power jet operation, Thottle position sensor, oil pump pick off etc might make your head spin, so going with the NSR or Honda RS is probably easier...
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rc46

 
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Thu May 18, 2006 5:51 am » Post: #4 » Download Post

Rolling Eyes pants!!!!

I had ideas of slapping some speed triple carbs onto the NS4 LOL cause im lazy and scared to open the ones i have LOL, Oh well its gona be a learning experiance!!! Ill get me hamer and drill im sure thats how you strip em!!! or is that kill em!!
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mat grant

 
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Fri May 19, 2006 4:41 pm » Post: #5 » Download Post

Hi,

I think stripping and cleaning a set of NS400 carbs is a lot easier than trying to get Triumph ones to fit!!! Laughing

Mat.
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rc46

 
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Fri May 19, 2006 5:09 pm » Post: #6 » Download Post

yeah i supose, but ive never done it Shocked but here goes.
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Andy
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Fri May 19, 2006 10:13 pm » Post: #7 » Download Post

I have all the pictures of NSR carbs modified to fit the NS, and will post it when I have time.

3 x 32mm TA21 or TA22... that's what you want!!
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rc46

 
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Sat May 20, 2006 7:01 am » Post: #8 » Download Post

Very Happy Very Happy Very Happy Very Happy awsome!!! im in no rush, ill keep an eye out now for a set or 2. thansk andy thats great!
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Barry_MC21

 
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Sat May 20, 2006 7:03 am » Post: #9 » Download Post

You could use CV carbs. If you want to lock the slide open (or up) the butterfly will regulate the fuel. Some racers have done this but you get crap throttle responce. It's mainly for top end, which is where you always are on a race track.

Dont know how well it will work on a 2t though.
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