I recently purchased an 800 for my 97XP. The motor ran fine through break in and up to about 10-15 hours total. Now the motor will not idle and continuosly backfires. It is now at a local shop. They have no idea what is wrong with it. It is NOT the rotary valve. I checked it and the shop checked it again. I did rebuild my carbs before installing the motor. Like i said, it ran great through the first 10 hours or so.
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New SBT motor backfiring...NOT RV
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That is the symptom of a bad rectifyer, or water in the coil box..... Or, possibly needs an MPEM, or a ignition pickup, or maybe the magneto cup is coming loose from the front flywheel.
Eliminate the easier stuff first.Bill O'Neal WCM
<a href="http://www.watercraftmagic.com" target="_blank">www.watercraftmagic.com</a>
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