dumontdude10 Posted March 4, 2008 Posted March 4, 2008 (edited) OK I'm taking my 2002 400ex apart and i was wundering were the jet is on the carb??? Edited March 5, 2008 by dumontdude10 Quote
ltr450rider Posted March 4, 2008 Posted March 4, 2008 I jetted my GF's 250ex and I had to remove the whole carb. I had to take the plate off the bottom. I don't remember exactly what I had to do. It was pretty easy and DynoJet sent good directions. I'd say just google it and see what you can come with. Good Luck. Quote
dunefreak Posted March 4, 2008 Posted March 4, 2008 You might have to pull the float bowl off (on the bottom of the carb). If not you might be able to access the main jet from the bottom if there is a float bowl drain plug. jet access plug. What are you looking to do? Jet it or clean it out? Quote
dumontdude10 Posted March 4, 2008 Author Posted March 4, 2008 Is this what u do?? "its pretty easy to do. takes about an hour, mainly time to take off the fenders and the gas tank and put it all back together. if you dont have to adjust the needle its pretty easy. once you loosen the hose clamps on either side of the carb you just flip it over, take off the four screws on the bowl, take off the bowl, and then switch out the main jet, and/or the slow jet if you need to. anyone who is mechanically inclined can do it. just takes a little time and patience. if you ask me, the diagram and instructions in the dynojet kits sucks. oh, before you remove the tank be sure to shut off the gas, otherwise it will keep running out of the tank. good luck!" (Atv Connection) Quote
wingnut Posted March 4, 2008 Posted March 4, 2008 (edited) It's been a while but.....There is a large nut(I want to say around a 17mm) built into what looks like a cap. Take that off and the main jet is right there. It's easy if all you have to do is change the main jet. Edited March 4, 2008 by wingnut Quote
dumontdude10 Posted March 4, 2008 Author Posted March 4, 2008 (edited) I bought this jet for it a 148 Edited March 4, 2008 by dumontdude10 Quote
EY3BA11 Posted March 4, 2008 Posted March 4, 2008 Is there a star stamped on it.. If there isnt then its not a true Kehin jet.. I would only use true Kehin jets as other manufacturers only get CLOSE and not exact.. Quote
EY3BA11 Posted March 4, 2008 Posted March 4, 2008 Also if all you are doing is replacing the main.. take a 17mm wrench get it in there.. pop the float bowl plug out.. then grab a 6mm socket and ratchet and take the old jet out.. and put the new one in.. Remember these are brass and dont require a lot of force before they break Quote
Warrior07 Posted March 4, 2008 Posted March 4, 2008 just make sure you give it a little smidge of a tightening cause if you don't and that ma fackacckaass comes loose watch out Quote
britincali Posted March 4, 2008 Posted March 4, 2008 were would the star be??? On the side right before the jet size number ONLY USE GENUINE KEIHIN JETS you wouldnt believe how many headscratchers Ive had from crap non OEM jets, they are all over the place size wise.... Heres a pic of the lazy star (showing its a genuine) Quote
britincali Posted March 4, 2008 Posted March 4, 2008 Fron the look of your pic yours aint a gen jet, if stamped 148 it could be as small as a 140 or as big as a 160 Go back to the shop and ask for the real thing Quote
dumontdude10 Posted March 4, 2008 Author Posted March 4, 2008 i bought it at mountian motorsports in ontario Quote
dumontdude10 Posted March 4, 2008 Author Posted March 4, 2008 what would go wrong if i put it in with out it being a star Quote
britincali Posted March 4, 2008 Posted March 4, 2008 what would go wrong if i put it in with out it being a star You could be lean you could be rich you could be fine, like I said its a crap shoot with non OEM jets. What size is stamped on them in not neccesarly the size. Say your running a 145 and are lean, you got the 148 to make it richer rite? Well with this jet it could go even leaner on you..... Quote
britincali Posted March 4, 2008 Posted March 4, 2008 Ok I think if figure a way of making this simple... You know when you have a cheapo set of tools all the sockets are a little loose and the wrenches round stuff off? Well if you go get a decent set of tools everything fits better and you round off less bolts, the sockets are stamped the same size but in reality they aint the same Quote
indasand Posted March 5, 2008 Posted March 5, 2008 ????????????? Stupid quote from a movie, trying to tell brit I got it..... Oh nevermind.... Quote
dumontdude10 Posted March 6, 2008 Author Posted March 6, 2008 i am so pissed right know. any body know a good way to un screw a screw that is crusted on and it wont budge. I've already tried wd-40, and liquid wrench, and tapping it with a hammer to get the crust off and nothing works. Quote
powerhouse Posted March 6, 2008 Posted March 6, 2008 hey Nick these guys are correct , all you need to remove is the 17mm quick change bolt on the bottom of the carb. and the jet is right there ! good luck, Dan Quote
dumontdude10 Posted March 6, 2008 Author Posted March 6, 2008 so just unsrew that 17mm bolt and it there. so i dont have to take the carb completly off??? Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.