05-20-2010, 11:15 PM #1
newbie.. polaris acceleration problem
im new to this site, please dont bash me for posting in the wrong section..sorry in advance. Question is why is it that my slt 750 takes forever to get up on plane. I have to feather the throttle to gradually get it going. once it gets up its out like a fat kid in dodge ball. I have the problem in both smooth water and chop. just picked up a r&d intake grate in hope that it will fix this. I also checke impeller and clearence.....looks good. Please help me i know there are experts on here that can anwser my qustion.
05-20-2010, 11:56 PM #2
WELCOME to the Green Hulk Forums.
You may be running lean, you may have a dead cylinder.
Check compression so you can verify you don't have a hurt engine.
In the tech section under Fuji engines you'll find information regarding the fuel supply issues and what it may take to cure your problem.
I'd start with checking the fuel pressure in your system to verify if you have a fuel issue.
Roughly 2 pounds at idle, 4 at WOT. Make your WOT VERY short as you are in danger of ruining your engine if it's a lean running condition.
You need to check the pressure anywhere between the fuel pump and the fuel restrictor(s).
05-21-2010, 08:55 AM #3
05-21-2010, 09:01 AM #4
More than likely but you need to know if the motor is O.K. check the compression real quick.
Remember to replace the fuel valve and all the hoses (including the pulse line) while you're updating the fuel system.
05-21-2010, 09:58 AM #5
thank you for the good info and the direction. is there anyway you may have a schematic on the fuel pump. I know where the return line, the main feed and the three carb feed lines go but which one is the pulse line?
05-21-2010, 05:22 PM #6
05-21-2010, 08:45 PM #7
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