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Everything Dirt Bike
Make / Model Specific
Yamaha
The 1999 YZ250
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<blockquote data-quote="Trfsrfr" data-source="post: 222814" data-attributes="member: 3959"><p>Two questions-</p><p>1 - I installed the new shift rod and lever last night; when I got to the track today the kickstart lever was making a chatter noise, as it was rubbing up against the gears. Is this because I didn't get the kickstart spring tang put in the correct position?</p><p>2 - If you recall I think I mentioned that I thought the bike was still running rich and was thinking about dropping the needle 1 position. Got to the track this morning, pulled the choke and let the bike warm up. Gave her a minute or two, then pushed the choke in and starting revving it and she died, wouldn't restart. I assumed I fouled the plug, and when I pulled it was wet.</p><p>Installed new plug, ran 4-5 laps, did a plug chop - threads were wet and porcelain was dark. Went to drop the clip, it was on the 2nd position, so I dropped it to the first. Bike seemed to run a little crisper. Did a plug chop at the end of the day, and here is the plug;</p><p>[ATTACH]32276[/ATTACH]</p><p>Does this still look too rich? I cant drop the needle anymore. The MJ is a 168 (stock 172), PJ either 48 or 50, float is dead nuts on, 32:1. 1250 feet altitude, temps we're around 55 degrees F.</p><p>It still seems to be a little snotty sounding in the upper rev's. Is that normal? I dont know, this is the first time I've ever had the bike running anywhere near what she's supposed to. She's fast AF, but I feel like I'm not getting all of it.</p></blockquote><p></p>
[QUOTE="Trfsrfr, post: 222814, member: 3959"] Two questions- 1 - I installed the new shift rod and lever last night; when I got to the track today the kickstart lever was making a chatter noise, as it was rubbing up against the gears. Is this because I didn't get the kickstart spring tang put in the correct position? 2 - If you recall I think I mentioned that I thought the bike was still running rich and was thinking about dropping the needle 1 position. Got to the track this morning, pulled the choke and let the bike warm up. Gave her a minute or two, then pushed the choke in and starting revving it and she died, wouldn't restart. I assumed I fouled the plug, and when I pulled it was wet. Installed new plug, ran 4-5 laps, did a plug chop - threads were wet and porcelain was dark. Went to drop the clip, it was on the 2nd position, so I dropped it to the first. Bike seemed to run a little crisper. Did a plug chop at the end of the day, and here is the plug; [ATTACH]32276[/ATTACH] Does this still look too rich? I cant drop the needle anymore. The MJ is a 168 (stock 172), PJ either 48 or 50, float is dead nuts on, 32:1. 1250 feet altitude, temps we're around 55 degrees F. It still seems to be a little snotty sounding in the upper rev's. Is that normal? I dont know, this is the first time I've ever had the bike running anywhere near what she's supposed to. She's fast AF, but I feel like I'm not getting all of it. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Yamaha
The 1999 YZ250
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