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Common Carb Issues

227914 Views 133 Replies 74 Participants Last post by  latebird
Just trying to get a list of common carb issues for a 2002 TB.

From what I was able to get from the parts guy from the dealer was the following.

- The needle and seat was a common part to wear out which hinders the carbs ability to prevent fuel from back-flowing out and getting into the air cleaner.

- The pilot jet. Mentioned that it can be cleaned but at $6 it is not a bad idea to replace it.

I am currently trying to resolve a car issue I have right now and would love the feedback.

Please let me know of any other common carb issues. Once I get a bunch of isses I can post the issues and cause.
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took my carb apart it was a clean as if it had been just been washed. Set that small screw on bottom of carb to 1 1/2 turns out, Reinstalled carb. Starts fine will idle on but when in gear it hardly moves . What's up ? thanks if you can help me. oh its a Bigboss 1998 500
Haven't found my way around this site yet so just email me thanks again

i sent back an email but I don't know if that will ever show up so here is my answer. Found that I needed do redo the carb again and took a long straight thin nedle and went down that centre hole where the slide rod fits into and after that blew air in pipes to clean it. That did the trick as far as speed went. I do find the plugs don't like getting their feet wet so when I start having trouble with starting I simply pull the gas tank and install a fresh plug and away we go again.. Never been fond of NGK plugs as once they foul it is iffy even after cleaning they spark right again. I have switched to the E plug and find they work just as well after being cleaned. I never put the shroud over the tank back on and leave the tank unbolted I have to change plugs so often and I very rarely use the choke. Many claim high test will do the trick but these units should not have to be babied with high test gas. When it's running I love it.

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