NEED HELP 3 miles per gal is what we got last ride

I had a 92 VMax 4 sent it to the dealer for carb sync. and cleaning got it back and ran out of gas with 69 miles on the odometer. It used to get around 11 mpg, I think the yo-yo that cleaned the carbs just drilled out the main jets. I replaced the mains and set the needles where I thought they should be and my mpg's came back along with alot of power. Now I dont let anybody touch my stuff I do all my own wrenching.
 
I agree. Mine are the only hands I want working on my sled. It gets real cold out there in the woods and if I am going to be swearing at someone for messing up I would rather it be me.
 
Couple of suggestions.
One, take the belt off and then turn the track by hand with the back of the sled off the ground. Does it turn easily or hard? Do the same thing with your sled adn compare the force needed to turn the track. If something is broken, worn-out or out of adjustment in the drive train of your dad's sled his track will turn much harder.
Second, i had a '93 Exciter 570 that got worse and worse gas mileage as the miles built up on the sled. One day after having just taken the carbs apart for cleaning and re-installing them I got really bad gas mileage and the sled ran like you describe your dad's running. I tore back into the carbs and found that the rubber o-rings that seal the needle seat (brass tubes the needles drop into) to the body of the carbs were degraded and one was torn. I replaced them and the "fat" running and mileage issues went away. The degraded o-rings were letting gas flow around the O.D. of the tubes from the float bowls to the venturi of the carb and into the engine. This made it run really rich and use gas like it was going out of stile.
Take a look at the o-rings on the tubes and replace them if they look even the littlest bit suspicious.
Mills
 
Last edited:
Hey guys thanks for the tips, my Dad brought me down the sled today and tomomrrow I will start to check things out. I want to find the problem because he wants to get rid of it, and he has 1800 miles on it, its like new! He keeps saying I never had a problem with my phazers, so he keeps looking at the newer proaction phazer 500s. I love Phazers, I have nothing against them I have a 84 all original and have had one for each year up to 93 but this sled is so clean its great for him.
 
Make sure dealer did not get the coke cables mixed up/swapped,they are not interchangable,1 is to short and if installed that way it pulls the cable and then runs with the choke on and you cant see it,the lever will look fine.
 
You must log in or register to reply here.


Back
Top