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Suzuki quadsport 50 compression

HeWasRidinDirty

By HeWasRidinDirty
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HeWasRidinDirty Enthusiast

HeWasRidinDirty

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So the compression on this little quad came up to 90 psi. I squirted a little bit of oil into the plug hole and it came up to 110. Now, I'm having an issue with it not wanting to rev up. It starts ok, but if I turn off the choke it dies. With the choke on, it doesn't want to rev up. I cleaned the carb and replaced the pilot jet. Is the problem the compression, the carb, or both? 

Ajmboy Grand Master

Ajmboy

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How old is the quad, do you think its tired and the rings are worn? Is it smoking at all? With the choke on its getting more fuel, with it off its a bit starved. Is there an air fuel mixture screw maybe not set correctly? Sounds carb/fuel mixture related.

HeWasRidinDirty Enthusiast

HeWasRidinDirty

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2 hours ago, Ajmboy said:

How old is the quad, do you think its tired and the rings are worn? Is it smoking at all? With the choke on its getting more fuel, with it off its a bit starved. Is there an air fuel mixture screw maybe not set correctly? Sounds carb/fuel mixture related.

Its a 2006. Someone had the carb apart and it looks like the beat the fire out of it. The brass float, on one side, is kinda caved in, and the little tube that is connected to the choke is bent. LOL When it starts it doesn't smoke. I took the carb apart again and it looked like the float was out of adjustment. It was binding up when it went down so it wouldn't let fuel in. I bent the tab a bit where it seemed to move a bit more freely. I put it back on and started it, gas was coming out the overflow, but it still dies out. So, I wasn't sure if it was a fuel problem or something else. So I got it to run again and kept hitting it with a small shot of ether and as long as I did that, it would stay running. So, it seems it's def a fuel flow problem. I checked on ebay for a carb, but found nothing. So...

  • 2 weeks later...
HeWasRidinDirty Enthusiast

HeWasRidinDirty

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4 hours ago, quadmaniac said:

Ebay has some chinese universals that may work. I see the lt50s all over the place even amazon but not the quadsport carbs. Not sure if the same carb. What year is it?

I'm not kidding, but a week or so ago, at 4am I was awake (as usual) and thinking about this thing. It dawned on my to check the bowl vent tube. Yep it was plugged up. I cleared it out and away it went! Sometimes it's just a simple thing. 

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