Recent content by rumblethump

Not trying to start a pissing match. 150 is a good start for the main, a little less might still be better. Not knowing about the rest of the plumbing, any VMAX that was running a 160 main most likely had a very lean needle, a mighty small air jet, and I will not even guess on the slow fuel jet...

Sounds like you will need to change all the jets + the metering rods. We will all get confused if I try to tell you what I know about flat slides. Contact John at www.pcwracing.net . He does this everyday and will hit it on the 1st guess. Good Luck

You need to pull your float bowl. Back off the screw that holds the float in place. Remove the float and needle assembly, paying attention to the wire clip that holds the needle to the float. I am convinced that it makes a difference which way it is turned. Turn on your switch and flush it with...

You have trash under the needle valve or a plastic float full of gas.

I have the new set up.It's working great.

I have one. What price do you consider decent ?

The manufacturer wouldn't sell cables to me. Told me to call UFO.

Use Yamaha rubbers & o-rings. Cables are custom made for UFO.

The sound is the boost cycling on and off. Watch the boost assembly, turn on ignition, when the cable is pulled all the way open, unplug it before it cycles back. Hope that makes sense.

Question about VBoost motor on pre '93 Max. Does it cycle when you turn the ignition on like the later model? Thanks in advance.

You missed the point. It's a one off work of art. Both engine & frame will impress.

www.rosspistons.com 12:1 drop in. Go for it!

If my memory is working, Pull exhaust,oil level wire & pan bolts.

[Allright, now you are worrying me! Pull the oil pan & report what's in it. Anything short of a vat wont help those carbs. OK I feel better now.

On a street machine the cv's will be more practical. If you go with the flatslides it's best to forget the filters.