KawasakiTrax Community
Tech Information => General Help => Topic started by: whitley1983 on February 26, 2020, 10:32:10 PM
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Hello, I just finished putting back together a 1980 440 Drifter, it fired right up but then was having trouble with it dying, had to keep the choke on the first position to keep it running. I took the whole carb apart and cleaned it really good then put it back in and started it up and it did the same thing. Then I adjusted the air screw and got it to where it was idling great, thought I fixed the problem but now it idles fine but when you give it gas it bogs down and will die. Any help would be great!!!!
-Jake
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Do you see any air bubbles in the fuel line?
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When were the crank seals last changed?
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I just finished completely rebuilding the entire engine, including new crank seals. I think I may have discovered what the problem is, at least why it started bogging down after I took the carb apart, I'm pretty sure I put the needle in wrong and it's not sliding up and down. Hopefully that's it, but yes I did notice some air bubbles in the primer line, didn't look at the main fuel line though.
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That's all it was! Works great now. One other question though, the fuel to oil ratio I found in the manual I have says a ratio of 40:1 for normal operation, I mixed a few gallons with a slightly richer ratio because I couldn't find anywhere in there where it gave the ratio for break in, anyone know?
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Yes, extra oil in the gas for the first 2 tanks full.