Rotax 125 Max - Incorrect Oil Seal Installation

Does your Rotax 125 Evo Max have a rough idle after rebuilding? Here’s a possible solution.
When rebuilding my full Rotax FR125 Max engine, I installed the oil seals on the wrong sides of the engine. The larger oil seal goes into the water pump crank case with the open part of the seal facing outward. The smaller oil seal goes into the clutch side with the open part of the seal facing inward.
I had to rebuild the entire engine in order to fix this, but I was able to leave the top end fully assembled still. I just removed the head with everything still attached.
Good luck!
I am using these seals with no issues. ⬇️
Clutch side seal:
amzn.to/48e64vK
Gearbox side seal:
amzn.to/3REQ9iS
$36.99 Rotax FR125 Max Starter Motor (Aftermarket)
amzn.to/48t2ZHW
2 stroke oil - Motul 2T 4 Pack:
amzn.to/41D4XmT
Oil/Gas Ratio mixing bottle:
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Motul chain lube
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NGK OEM Spark Plug:
amzn.to/47jElIB