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Everything Dirt Bike
Make / Model Specific
Suzuki
DRZ400s lean running
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<blockquote data-quote="MikeinFresno" data-source="post: 213351" data-attributes="member: 40"><p>popping also can be due to an air leak in the exhaust system...the leak causes air to be sucked in on decal and the added oxygen then ignites the unburned fuel in the pipe. This is common on a KTM where there is no positive seal at the head or joints. Most street legal bikes have a good gasket/bolt on system so they usually wont leak air. But if an after market pipe was added it may be the cause.</p><p></p><p>Also, you say it is acting as tho it is running lean...what exactly is it doing that makes you think this-especially since it is jetted rich?</p></blockquote><p></p>
[QUOTE="MikeinFresno, post: 213351, member: 40"] popping also can be due to an air leak in the exhaust system...the leak causes air to be sucked in on decal and the added oxygen then ignites the unburned fuel in the pipe. This is common on a KTM where there is no positive seal at the head or joints. Most street legal bikes have a good gasket/bolt on system so they usually wont leak air. But if an after market pipe was added it may be the cause. Also, you say it is acting as tho it is running lean...what exactly is it doing that makes you think this-especially since it is jetted rich? [/QUOTE]
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Everything Dirt Bike
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Suzuki
DRZ400s lean running
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