Question about Johnson Minn Kota Mk 25 & Mk 35 On Board Maintainersstyle: Mk 35

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I have a 1978 70 hp johnson with the spark plugs out the motor spins freely with spark plugs in the motor is hard to crank, and sounds like it binding

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Hi, with your spark plugs in you are turning the engine over against compression, thats why its harder to turn. The binding noise could be your piston rings, buts its difficult to say without further information. Sorry

Posted on Jul 15, 2010

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I have nisssan frontier o6 4 cylinder, I put a fuel pump , crank sensor, spark plug, still no start, engine spin over.

I would first check fuses. Second, check for any codes in the system. To make a motor run you need air, fuel, and spark. Pull a spark plug and use a spark plug tester while cranking the motor to determine if you have spark. If no spark, and you have replaced crank sensor I would suspect ignition control module unless you have coil over plugs. Also, when you turn the key on, listen for the injectors squirting fuel. Hard to diagnose with such little info. Just know your are missing one or more elements causing it not to start. If there is a mechanical issue inside the motor this could also cause a no start condition.

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Troubleshoot my engine

First remove one or more spark plug and check if they fire during cranking ( Replace therefore the plug in the plug cap and place the metallic side of the plug against the engine-block and crank.)
If NO spark check:
- Deadman knob-is the puller installed?
- Unplug the wiring to remote-control and check spark with manual start. If you have sparks: Problem with contact key/remote control circuit ( check for worn cable, bad RPM counter )
Still no sparks: Check CDI-box
If the plugs are WET: dry them with air, or better replace them!

If you have sparks: Check if fuel come to the carbs. Therefore, unscrew the drain plug ofan upper carburettor at the side of the cowls.
If there is fuel, check after cranking if the plugs are 'wet'. If they're dry: clean the carburettors

If plugs were wet: Empty all the carb cowls ( drain plug ), remove the fuel line ( pince it with pliers if no quick connector ). Crank the engine while carbs are full open throttle for 15 seconds.
Set everything back ( plugs, fuel line, drain plugs, spark plug caps ) and give it a try...

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I have a 26 hp. twin craftsman gt5000, battery was dead, so I jumped it ,and it started up, ran fine. Mower deck kept shutting off when I was trying to mow,so i figured battery is toast and will not...

Hi, new battery sounds faulty, try jumping it again and if it starts ok its the battery, if not the solenoid may be faulty. Hope this helps, regards Phil.

Aug 19, 2011 | Garden

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I have a 1971 85 hp joahnson outboard that is getting fuel but no spark from the plugs it cranks over but no spark... any ideas???

What you have is a bunch of parts that you need. There are very few repair shops that would consider the repair. Being an employee many years ago of such parts....Try googling, Antique motor parts/ johnson. or elaborate as OMC / Evinrude/Johnson. You can still find a parts guy that can help you (very rare) search the web and hope it turnes out Okay! BeeCee

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1 Answer

No spark

It sounds like the coil or a wiring issue.Try a new spark plug or coil.

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Does an 85 johnson outboard motor 15 hp have

Not ignition points as a set of breaker points as we know it.The timing is set from magnets set under the flywheel.Hope this helps

Sep 02, 2009 | Sport & Outdoor - Others

1 Answer

18 HP tractor cranks but will not start

It sounds like you lost compression take out the spark plug and screw in a compression tester to check for engine pressure there should be 70 - 90 psi, if you can't buy one put you thumb over the spark plug hole and have a assistant crank over the engine push on the hole pretty hard, be careful not to get a shock from the spark plug wire while cranking the motor, if you feel pressure with your thumb reinstall the plug and connect the spark plug wire proceed to remove the air cleaner and pour a small amount (1 o.z ) of gas into the carburetor hole then try to start if it starts then stalls it is a fuel delivery issue. unscrew the carb float bowl to clear out any water or debree from it. the float bowl is round and is located on the under side of the carb, it should un screw by wraping a rag around it and turning it counter clockwise with a strong hand. also try cranking over the motor with your hand over the carb intake hole this will force any debree to get cleared out of the tiny passages in carb without having to full disassemble the carb this may also get the motor started for you if it starts remove your hand to allow the motor to breath and start/run.

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