1998 500 scrambler need help bad
#1
#2
Sounds like the needle and seat are worn/float level off allowing fuel to dump into the cylinder and contaminate the oil. First off change the oil and filter and install a good carb kit. Shindy is Japanese and equivalent to oem Mikuni carb parts. New Shindy Carburetor Carb Kit Polaris 500 Scrambler 1998 2002 Sportsman 01 02 | eBay Float level setting is critical on this model to keep it from dripping also. Here's a good article on the BST40 carb that's similar to yours but used on a Ktm and shows how to adjust the float level among other things.http://www.advrider.com/forums/showthread.php?t=347184
#3
Sounds like the needle and seat are worn/float level off allowing fuel to dump into the cylinder and contaminate the oil. First off change the oil and filter and install a good carb kit. Shindy is Japanese and equivalent to oem Mikuni carb parts. New Shindy Carburetor Carb Kit Polaris 500 Scrambler 1998 2002 Sportsman 01 02 | eBay Float level setting is critical on this model to keep it from dripping also. Here's a good article on the BST40 carb that's similar to yours but used on a Ktm and shows how to adjust the float level among other things.The BST-40 Bible | Adventure Rider
#4
Guess I was a mechanic for too many years.. Can't understand why people take a carb apart to only clean it especially if the carb internals are original.. On a 17 year old machine it would get a Shindy kit so I wouldn't have to possibly go back into the carb again and again like many have done. Once was enough to tear a carb apart for me.. I'm through,just had to rant a little..
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