dune 150 carb problem

[rotaxman]

Hello all wanted to know if anyone has converted to the mikuni 26mm vm 606 carb. The factory carb is a constant vacuum carb designed to run on a scooter. Which usually runs at a constant speed were as the dune buggy is on and off the thorottle constantly that is were the vm round slide would work and perform much better. I have a 26mm on the machine I got a good idle and a good mid and high speed but i have a hesitation off idle when accelerating (lean condition) I need a richer jet needle just off idle the 5E75 needle is to lean. Just wanted to know what needle was being used. So if someone has converted or if you know someone that has I would greatly appreciate a reply to this.

Thanks
ROTAXMAN

[pghruby]

There are many 150's running 30mm round slide carburetors (I even have one sitting ready to go on the Yerf). It requires a 30mm intake and riser to clear the crossbar due to its size and custom throttle cable.

If my Yerf didn't run so well with the stock carburetor and manual choke, I would have already had this swapped out...

[rotaxman]

Hello all
By the reply to my message I take it that no one or no one knows anyone that has a mikuni vm 26-606 carb on there dune 150 or any other 150 out there. I would greatly appreciate some input on the jetting size of this carb ,pilot jet, jet needle,and main jet. Thanks to any replys.

Thanks
Rotaxman