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Everything Dirt Bike
Make / Model Specific
Honda
'87 Honda XL250R running hot/pops oil/jetting?
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<blockquote data-quote="Tubecatgs" data-source="post: 221621" data-attributes="member: 4885"><p>Ok, After looking in the service manual it doesn't look like they want you to adjust the air screw as this is factory set and has a cover that you have to break off to get to it. Please note this is a dual carb set up. In fact these were brand new NOS carbs I found wrapped in plastic in original boxes that were still factory lubed a bit. I will do it but maybe thinking I try changing the jets first since I am not sure I can get another air screw limiter cap. </p><p></p><p>A guy I bought the air box from said that these bikes run hot and if it does try 2 things... 1) make sure the gas tank lid vent works and to put the next size up jets in it. So based on the fact that it runs good when cold, only pops when warmed up and by the plug it appears to be running lean.... Which jets should I upgrade? The book shows a needle jet, slow jet and main jet...plus the actual jet needle. any ideas? thanks again all.</p></blockquote><p></p>
[QUOTE="Tubecatgs, post: 221621, member: 4885"] Ok, After looking in the service manual it doesn't look like they want you to adjust the air screw as this is factory set and has a cover that you have to break off to get to it. Please note this is a dual carb set up. In fact these were brand new NOS carbs I found wrapped in plastic in original boxes that were still factory lubed a bit. I will do it but maybe thinking I try changing the jets first since I am not sure I can get another air screw limiter cap. A guy I bought the air box from said that these bikes run hot and if it does try 2 things... 1) make sure the gas tank lid vent works and to put the next size up jets in it. So based on the fact that it runs good when cold, only pops when warmed up and by the plug it appears to be running lean.... Which jets should I upgrade? The book shows a needle jet, slow jet and main jet...plus the actual jet needle. any ideas? thanks again all. [/QUOTE]
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Everything Dirt Bike
Make / Model Specific
Honda
'87 Honda XL250R running hot/pops oil/jetting?
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