Mikuni 36MM jettting specs for 1981 KTM 250

Started by JCHubbard, June 05, 2008, 10:09:13 PM

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JCHubbard

Hello Gentlemen. I've got a Bing 54 on my 250 and this carb is almost completely kaput!...I just recieved a new VM Mikuni 36MM carb and was wondering if anyone here has any experience with the Mikuni jetting specs (sea level) for a 1981 KTM 250 GS?...I've searched all the previous Mikuni posts and what I gather is that you should definitely go fat (240~410 range) on the main. On my 79 Maico I've been able to track down some old Mikuni specs for a ballpark starting point and it's been very helpful in getting the bike dialed in. I'm hoping that some here might be able to provide with a little insight as to where I should start when jetting this bike.

Thanks,

John Hubbard
AHRMA #658

JC Hubbard
2008 KTM 250 XC
1984 Husky WR 400
1981 KTM 250 GS
1979 Maico GS 250
JC Hubbard

JCHubbard

Never mind -- Guess I should've reading the "Jetting question" post --
I didnt see it until after I had post my question.

JC Hubbard
2008 KTM 250 XC
1984 Husky WR 400
1981 KTM 250 GS
1979 Maico GS 250
JC Hubbard

tofriedel

John,

You may want to ask your question on this site http://www.ktm495.mxbikes.com/  
They have a lot of experience on the 81 & up KTM's.

Tony
Tony

JCHubbard

Never mind -- Guess I should've reading the "Jetting question" post --
I didnt see it until after I had post my question.

JC Hubbard
2008 KTM 250 XC
1984 Husky WR 400
1981 KTM 250 GS
1979 Maico GS 250
JC Hubbard

tofriedel

John,

You may want to ask your question on this site http://www.ktm495.mxbikes.com/  
They have a lot of experience on the 81 & up KTM's.

Tony
Tony