no spark on one cylinder after quick start

[denny121]

when first start a 1999 johnson 225 ocean pro all six cylinders fire ,after quick start stops (only a few seconds} no spark in one clinder.Had boat to two mechanics and 2000 dallors later still the same.New parts include two new power packs ,timing bass,coil packs,stator,plugs and wires.ANY IDEAS!

 

[jonesg]

Re: no spark on one cylinder after quick start

Theoretically that can't happen.

Something is missing in the symptoms.?

 

[denny121]

Re: no spark on one cylinder after quick start

that is basicly what the mechanics said , the johnson rep said it might be a bad ground somewhere but none could be found.

 

[denny121]

Re: no spark on one cylinder after quick start

could it be a flywheel problem?

 

[jonesg]

Re: no spark on one cylinder after quick start

Quickstart works through the temp sensors in the cyl head.
Remove and ground all plugs .
Disconnect port temp sensor and ground to block (alarm will drive you nuts on this one), this disables the quickstart feature.
Do a spark test.
No spark?
do it again without the temp sensor grounded.
See what happens.

If there was a flywheel problem they would have seen it when they did the stator.

 

[tashasdaddy]

Re: no spark on one cylinder after quick start

this may help: http://www.boatpartstore.com/page35.asp