2001 scrambler 500 carb leaking
#11
#13
If your talking about the tube #43 ,its so you can adjust idle away from the carb by the side of the ATV,They fall apart all the time. ,Your drain is #49.
Usually when a carb leaks its because the #37 valve needle is sticking,dirty ,floats are not set level or Valve needle rubber o-ring is bad.
Usually when a carb leaks its because the #37 valve needle is sticking,dirty ,floats are not set level or Valve needle rubber o-ring is bad.
Also, will I need to take the carb off the quad to get to this, or can I get there from the top?
Thanks,
Mark
#16
I guess the breather tube from the airbox to the top of the oil tank delivered the gas (to the oil tank)?
I thank the good Lord that gas under my butt never ignited. I'm lucky and blessed.
Lesson learned to turn the gas off after I shut the quad off!
#17
Well its happening again!!
It has been awhile. I got the rebuild kit and new float bowl and put it all back together. It worked great for a 6 months or so. I start the bike about once a week to keep things fresh and when I did today gas came out again. It is really pouring out now! Should I buy another rebuild kit or should I send it off the the dealer to have the carb rebuilt? Does anyone know of someone I could send this off to and have them rebuild it?
Thanks for any and all help.
Nathan
Thanks for any and all help.
Nathan
#18
If you have the BST 40 carb, like the one illustrated you can adjust this carb float and it will still leak at least a little out the over flow eventually! I never could get em to stop.Part of it being that the float itself is what puts pressure on needle valve seat when the carb bowl is installed and I just don't think it seals the needle valve that good and seeps past it? Its not like the old BST34 needle valve that was pushed in and held by a plate with 2 screws OR the older carbs that where the needle valve was just screwed in with a fiber washer,(the old 400 and 250 carbs.) Plus the spring wire clip that held the idle adjuster would always break and the idle adjuster would be laying on top of the starter! I've built a stronger way to hold the idle cable by just using a vent holder strap off old carbs that screwed on the carb bottom in place of the wire and you just curled it around the cable and they wouldn't break. Since you say you just ride it occasionally,could be varnishing up if you don't have any type of fuel stabilizer in the fuel system and could be causing problems also. OPT
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07-10-2015 07:46 PM
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