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Everything Dirt Bike
General Dirt Bike
bogging; fouled plug after rebuild
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<blockquote data-quote="yawtyler" data-source="post: 27859" data-attributes="member: 379"><p>Sort of a rebuild. Just a piston ring.</p><p>Anyway, i got it all together, put it through one heat cycle, it ran fine. I thought it was cutting out a bit, so i turned the air screw out to ~2 turns. Let it cool for about 1.5hrs, go out to start it again, it warms up good and idles fine. As soon as i hit the throttle, BOGGGGGG. Trying it again a few times, the same bog. The last time it bogs down and won't start again. I checked the plug, definitely wet. </p><p></p><p>What could be the issue? I think my jetting may be a little rich after the rebuild, it was probably jetted for the worn top end. Here are the specs, tell me what you think.</p><p></p><p>'94 CR125</p><p>FMF Fatty</p><p>175 main; 172 stock</p><p>55 pilot; 58 stock</p><p>1.5 turns out</p><p>40:1 mix</p><p>2 from the bottom on the needle</p><p>BR9EG</p><p></p><p>Thanks guys! <img src="https://www.dirtbikeaddicts.com/static/images/smilies/ride.gif" class="smilie" loading="lazy" alt=":ride:" title="Ride :ride:" data-shortname=":ride:" /></p></blockquote><p></p>
[QUOTE="yawtyler, post: 27859, member: 379"] Sort of a rebuild. Just a piston ring. Anyway, i got it all together, put it through one heat cycle, it ran fine. I thought it was cutting out a bit, so i turned the air screw out to ~2 turns. Let it cool for about 1.5hrs, go out to start it again, it warms up good and idles fine. As soon as i hit the throttle, BOGGGGGG. Trying it again a few times, the same bog. The last time it bogs down and won't start again. I checked the plug, definitely wet. What could be the issue? I think my jetting may be a little rich after the rebuild, it was probably jetted for the worn top end. Here are the specs, tell me what you think. '94 CR125 FMF Fatty 175 main; 172 stock 55 pilot; 58 stock 1.5 turns out 40:1 mix 2 from the bottom on the needle BR9EG Thanks guys! :ride: [/QUOTE]
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Everything Dirt Bike
General Dirt Bike
bogging; fouled plug after rebuild
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