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1981 4 hp johnson outboard motor wont start, suspect no spark.

Posted by Anonymous on

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Boat engine 1995 Johnson Outboard 70 HP

Ihave a 1991 70 hp Johnson outboard thats hard to start the first time but starts good after that. Seems to be flooded. Starting rpm seems to be low.

Posted on Jul 25, 2009

  • 154 Answers

SOURCE: Hard to Start & will not stay running

may need carb clean or tune up

Posted on Aug 03, 2009

  • 770 Answers

SOURCE: 1974 Johnson 70 hp outboard, quits on acceleration.

It sounds like your motor is starving for fuel. At an idle, you have adequate flow to keep the engine running. When you call for more fuel...you sputter and quit. Could be a clogged filter or trash in the line or in a jet. Yes you will have some air in the bulb, but not a great deal. You could be sucking air at a hose connection (loosing some prime)...try this, start the engine and slowly accererate, have someone pump the bulb as you accelerate, see if the engine works properly while doing this test.

Posted on Sep 20, 2009

  • 54 Answers

SOURCE: what is the maximum RPM's that I should be safely

I am not an expert for Johnson but with most 2 strokes about 5100.

Posted on Nov 28, 2009

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