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1981 johnson 15 horserestrictor

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big_jack

Contributing Member
"ALRIGHT, I NEED A PROFESSIONA

"ALRIGHT, I NEED A PROFESSIONAL ANSWER FROM YOU PROS. ACCORDING TO MY SERVICE MANUAL,AN EXHAUST RESTRICTOR IS INSERTED IN THE EXHAUST CHAMBER. WHY? WOULDN`T THIS CUT POWER?????? THANKS"
 
The two stroke engine as any e

The two stroke engine as any engine needs back pressure to operate. A two stroke needs this back pressure more than a 4 stroke does. The restrictor controls the amount of back pressure the engine needs.
If the engine doesn't have the correct back pressure it will not run at it's best preformance level.
 
"I've got a 79 15hp, had t

"I've got a 79 15hp, had to take lower unit off three times because of water pump, last time around, forgot to put in restrictor plate, CAN'T TELL A BIT OF DIFFERENCE!!!!!!!!"
 
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