lakeville racer
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- Yamaha
- Year
- 2017
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- Limited
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- 21
has anyone increased the pitch on the new 212 to reduce engine RPM?
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impeller uprade
- Thread starter lakeville racer
- Start date
Speedling
Jetboaters Admiral
- Messages
- 5,158
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- Location
- Cedar Lake, IN
- Boat Make
- Yamaha
- Year
- 2008
- Boat Model
- SS
- Boat Length
- 21
I installed new impellers and found that my RPMs were not at the full 10,000.
The mr-1 engines create Peak horsepower at 10,000 RPM
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