86 LT250r Thanks guys

 

well it just makes a bigger fuel flow, so really it does help your rpm hit the powerband faster so your acceleration will be quicker how much i dont know

 

A bigger carb allows more fuel AND air to enter your engine with less restriction. More fuel, and more air equals more power. On the flipside as more fuel is entering your engine, more fuel is coming out of your tank. Its not going to suck it dry instanly, but it will surely increase the amount of fuel the engine burns over the smaller carb by a little.


Now if you put a Holley 750 double pumper then......

 

lol that would be awesome though if it would actually work.

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yeah just like Polaris500 and LT250Rodney said it will allow more fuel flow, but your tank will run out quicker than normal and i heard that a bigger carb is only better for drag racing or hill climbing.

 

Bigger isnt always better. You need a carb that matches the mods that your quad has. If you have very few mods, then a bigger carb doesnt do much, sometimes even hurts. I.E., dont put a quadzilla carb on your stock bike, all it would do is load up and bog down. With all the mods that my quad has, I run a Keihin pwk 35mm. Stock is a Mikuni 34mm. I tried a Quadzilla carb, and it(in my opinion) ran the same as the Keihin 35mm, actually I think the Keihin has better snap. I am putting a 5 petal reed cage in within the next couple days, and I imagine I could use a 36mm carb. If I had more porting, I definately would want a bigger carb. I suggest not going bigger than 35mm with the mods that you currently have. But going from the stock Mikuni to the Keihin made a noticable difference. Better carb really, not necesarily bigger.

 

hey, slacker

On my bike, 89 lt250r i was told that it is a 38mm keihn carb, and besides that it only has a paul turner pipe, i foul a plug about every 6-7 hours, i was suspect of the carb, i am taking it over to my uncle to try and rejet, if i am unable to rejet it to stop fouling would you be interested in a trade? my 38mm for your 35mm? I just want to stop fouling plugs. if your interested e-mail me at Boulton1_99 at yahoo.com

Mark

 

Your quad is better suited for a 38mm than mine is. If you had a 36mm, then I would be considering your offer. Your year has an actually reed cage and flows more air. Sounds like you are simply jetted too rich. Have you installed some good reeds? With a few mods, you can make that carb work really well.