78 tnt 340

Summiteer · Nov 6, 2009

Heres one for thew hardcore:
Does anyone know what the stock jetting for a mikuni VM34 carb on 1978 TNT 340 Fan cooled?

Summitric · Nov 6, 2009

MITCH, YOU SHOULD BE ABLE TO FIND WHAT YOU'RE LOOKING FOR ON HERE:
http://www.bayshorecad.com/Sleds/Literature/Carbs/MikuniVM/Mik_Conversion_Specs.pdf

takethebounce · Nov 6, 2009

cool sled, my first ski-doo was a 76 340 tnt. Had a 300 as well. Hope you find the info you are looking for.

raceu4it · Nov 6, 2009

sea level main jet 250
needle jet 159Q-2
pilot jet 35
needle 6F9
needle clip position 3
slide cutaway 3.5
air screw 1 1/2
drive spring Lt blue 414-196-700
lever arm C-3L
driven clutch
8 lbs preload
gearing 16/34
special set-up reverse suspension sgprings with stiffs to the front, and adjust limiter to the longest length.
hope that helps.

Summiteer · Nov 6, 2009

Thanks guys, Ric that link you gave was gold! A buddy of mine is rebuilding a 76 TNT 340that came with a tillitson carb. He was sold a VM34 with a 2.5 cutaway as a replacement but it looks like he needs a VM30. I will pass this on. Thanks again.

overkill131313 · Nov 6, 2009

in 77 the tnt used a 34 mikuin so I would use the 34mm a 30 is to small. a single 250 elan uses a 28 but I used a 32 on my twin 250 when I did a mukini swap, and then went up to a 34. use 34 on the 340! or try twin 30 mm on the 340 like the citation SS in 1980. start with those specs and then fine tune.

78 tnt 340

Summiteer

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Summitric

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