Hey new to the forum

i have a new raptor build 686, 11:1, X-4 cam, ported, stock carbs, K&N in stock box no lid,
i ride in glamis (sea level)
can you guys give me a good ball park to start, i have yamaha mains.

 

190/195 should be close. Thats should get you in the ballpark. You can use equal size mains also like 195/195 or 200/200 to get them close to. 200 is the biggest they make btw.

 

thanks scholle

man that seems rich

 

Thats what happens when you run a huge cam on a stock carbbed bike. The only thing keeping you from having to drill out your own jets is probably the restrictive airbox setup.

 

When asking for jetting help, remember that Mikuni jets and DynoJet jets are NOT the same. So ask people if they are refering to mikuni or dyno jets. Id also go with 27 pilots, 2 or 2.25 turns out. Dynojet makes jets upto 210 btw! With my mods Im almost out of room to jet up. You should really think about getting bigger carbs.

 

OH yeah i will be running mikuni mains are the DJ numbers smaller or bigger than the mikuni mains of equal sizes

thanks for the posts

 

If you have two jets that have the same number on them, say both mains are 145, the Dynojet main will flow more fuel than the same number mikuni.

 

Right now I am running 190/195 Mikunis on 2 1/2 turns out with a 27.5 pilot with a Sparks pipe...When it cools down I will run a 195/200 with the Barker duals. My only carb mod was adding Grizzly needles and seats to keep my bowls full.Congrats on the build buddy.I bet it hauls a$$.

 

i was wondering what needle setting u use on 686 with the 190 195 mains i have ct needles

Matt

 

Really, my stealership told me otherwise, saying that dynojet and mikuni used the same numbers, DJ told me I should be running a dj175 and 180, being as I cannot just by the dj jets I went out and got the mikuni jets assuming they were the same. Taking what i know now what should I be running, I ride at about 1000 above sea level. Thanks for the info. Terry, 02 raptor 686, 11.1 S1 hotcams, yosh pipe, fmf header, K&N with no lid