Johnson Boating - Page 3 - Recent Questions, Troubleshooting & Support
How to reset Johnson 115 4stroke service alarm
A little hard to say.. Should clear on its own. Try disconnecting the batteries for an hour ... if I remember correctly there are different types of bedpan for each malfunction.... Long and on to short beeps in different sequences. One thing that makes a boat act like it has a gremlin is a failing thermostats... Chevy Serra does the same backwards flips. So if the batteries load test good and the connections are solid then I'd be checking for a partially plugged thermostat or restricted cooling line or failing water pump. ( change at least every three years , ) costs a few hundred dollars to service an engine , takes a lifetime to row back in.
I have a 1969 Johnson outboard motor 6hp
Having a problem with the throttle arm. It won't turn.
Do you have any suggestions?
On the under side of the tiller arm there is a tension screw ... make sure it isn't too tight. It is simply a screw that threads through the casing of the tiller arm and friction rubs against the inside shaft. Corrosion or an incorrect adjustment may case it to be hard to turn. I always back mine off.... If I fall off the boat I don't want the bug ger coming bk looking for me at full throttle. Next would be to give the disassembled arm a good cleaning and greasing. It is very simple consisting of meshing sprockets hooked to a long rod.
How do I adjust the idle speed/rpm on an Evinrude 90 hp outboard boat motor?
These engine adjustments vary by year, but the later models had their idle RPM adjusted with the boat in the water to account for exhaust back-pressure. Actual idle speed is set by adjusting the Idle Timing while the unit is in gear in the water. Check the service manual for actual timing specifications, the owner's manual won't have this information.
Have a Johnson 9.9,4 stroke outboard that after running for 15 min.Starts missfiring,then stalls.Will start after cooling off.Ihave replaced coil,fuel pump, primer bulb,spark plugs,and spark module .
Couple of possible problems. I would tend to lean to wards carbon build up on the piston . What happens is over time you will gain carbon , as the engine runs it super heats and when its hot enough it will cause the gas to ignite at the wrong time and actually stall the engine. Imagine you are pushing a rotary door in the mall and every time you pass the enterence to the mall another person jumps in and helps push ... everything spins easily . . Then some clown jumps in and gets caught in the frame ... everything stalls. To fix this you will need to take the head off and clean out the carbon. Might take a bit but it can be done . Had this happen to a mechanic friend of mine... he repaired a 9.9 got paid for the job and the motor would run for 20 min and quit couldn't figure it out to save his soul. Until we put our heads together. Checked every possible thing only to figure out it was a carbon problem.
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