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yz400 starting issues

4 posts in this topic

I have a 99 YZ400F. I had it for about a year and before that it was in storage for 3 years. It always started on the first or second kick. I never had a problem starting it like others have had till last night. The bike started up on the first kick like usually after ideling for about a min I put the choke back in and the bike shut off. I was unable to start it for about 45 min. I tried everyting hot start, choke on, choke off, pushing it, etc. I had no tools with me. Has a clean air filter, and good gas. I turned off the gas line and kicked it like mad and it finally started. I dont think I flooded it? While started I turned back on the gas. It was fine for the rest of the day. First time having this problem, I will try it again tonight but does anyone have any thoughts or ideals on what to further look into.

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Those are both good ideals.

I tried starting it again the last night it stated without a problem like normal. It was hotter then normal that day I had trouble. I think it was something to do with the air mixture screw from talking with friends. Im not a mechanic when it comes to Carbs. I will get a new plug and have a friend help me clean out the carb it cant hurt.

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