[t-rex]

when i would jam the throttle it would die.come to find out theres not a fuel accelerator pump on these models so this is why it dies.is this pump located in the carberator?

 

[Helmut]

when i would jam the throttle it would die.come to find out theres not a fuel accelerator pump on these models so this is why it dies.is this pump located in the carberator?

Yeah, the accelerator pumps are located on the carb. Maybe a 300EX carb would fit it. They have accelerator pumps. The diaphragm in the picture below is the accelerator pump on a 300EX carb.

 

[Billy250X]

Makes sence.It should have one.Thats stupid.

 

[t-rex]

i know its a beginner quad but wtf were they thinking.thanks for quick anwers.cant find a aftermarket carb at all for it so i think ill get the 300ex carb.what size is the 300 carb mines a 22mm.

 

[Billy250X]

Ask moose.He's had his apart so many times.

 

[t-rex]

did some searching.300 carb is 32 mm.so if i got this carb would i have to jet it down.i plan on selling a gun to get an exhaust so maybe i could keep the 300 carb stock.HELP ME i hate messing with carbs

 

[Billy250X]

Sorry dude it would never fit in a 22mm rubber.Wow that sounded bad.lol

 

[Helmut]

300EX carb is 29mm according to my repair manual. Would the carb boot and all work?

 

[Billy250X]

Still wouldn't fit.

 

[Helmut]

 

[t-rex]

thats what i was just thinking about was the rubbers lol.im gonna have to do some searching to fix this carb problem or just deal with it.it just bugs me they did this.

 

[t-rex]

ok did more searching.on ebay theres a stock carb but its made by keihin for 50 bucks.emailed to find out if it has the accelerator pump.if it doesnt i found a site quadandatvparts.com that has the pump and adjustable external leak jet made for keihin carbs for 250 bucks .so 300 bucks for instant throttle response DEAL OR NO DEAL?

 

[Billy250X]

I don't know if thats a deal or not.lol

 

[t-rex]

i know id rather just get an exhaust and deal with the way first is but itll always bug me the way these carbs are.

 

[Billy250X]

It would bug me too man.

 

[iceman320]

t-rex. I don't think that my 2008 250ex bogs in first when I hit the throttle. but i will have to check when i go riding this weekend and then i will let you know if mine does it too okay.

 

[TRX2fiveO]

36mm is what my honda service manual says. I haven't had it apart but twice but about 4 times for jetting but you only have to pull out the drain plug on the bowl for that.

 

[TRX2fiveO]

my buddy's 250EX don't do it either.. the only time you will have that type of issue is if the idle circuit is partially clogged i would remove the carb and give it a good cleaning, remove the float and float needle then the slowjet and spray it out real good. it sound like you may have picked up some trash.. How is your air filter?

 

[iceman320]

t-rex I was just out riding my 250ex and when mine is in first gear and I jump on the gas the whole quad will raise up like it's going to wheelie. so you might want to run something in your gas to clean the carb out.

 

[t-rex]

thanks for the info.ordered my exhaust so when i rejet im gonna clean it see if it helps.