how many cylinders should be running??

[soce009]

6 cylinder johnson: at idle should all cylinders be running. if you pulled one wire at a time should each one make the engine sound different when pulled(like shut off or change sound of engine running at idle). i pulled one off at a time while in neutral and idling and 4 of the cylinders had no change on engine, one shut off engine, and the other slowed down engine and then shut off (after sending a few volts up my arm). should all cylinders be working at idle or just in gear. I posted a few questions on this motor, appreciate all the feedback, gonna get it checked out at the marina tomorrow or next day, will let you know how it turns out

 

[DJ]

Re: how many cylinders should be running??

They all should be working-all the time. You may want to check the compression on all six. They should be 10-15% of one another.

 

[sloopy]

Re: how many cylinders should be running??

is this a two stroke motor!?

 

[soce009]

Re: how many cylinders should be running??

it is a two stroke.

 

[sloopy]

Re: how many cylinders should be running??

is this a two stroke motor!?

 

[soce009]

Re: how many cylinders should be running??

IF all the cylinders are not firing, would this cause the boat to stall under load??

 

[DJ]

Re: how many cylinders should be running??

Sure would.

 

[soce009]

Re: how many cylinders should be running??

will be the first thing i bring up when i talk to the marina in the a.m. thanx for all your help.

 

[sloopy]

Re: how many cylinders should be running??

you welcome

 

[Solittle]

Re: how many cylinders should be running??

With a 6 cyl your engine should not stall if one cyl is not firing. I would suspect that you have more than one cyl out. <br /><br />A plug should jump a 7/16" gap when firing. Check all plugs. That will tell you if you have an electrical problem and if so where. Check the condition/color of each plug.<br /><br />Then follow djohns advice and check compression.<br /><br />The "how to's" to do this stuff are easily found by asking the appropriate question in the red Search section at the top of the page.

 

[soce009]

Re: how many cylinders should be running??

To keep everyone updated who helped with their advice: got all six cylinders firing now, electrical problems, cleaned all grounds, replaced all orings, and replaced some wires 2 connector and 4 connector that was bad, gonna go out this week, thursday, to see how she runs. wish me luck, will let you know what happens, later..

 

[soce009]

Re: how many cylinders should be running??

good evening all, took my boat out today, was having problems when i put it in the water and it was stalling out when i hit the throttle, but found the problem, electrical connections, motor wasn't running on all 6 cylinders... now she is, and it's beautiful...first time i took her out and opened her up. would like to thank all who replyed and for your suggestions...thanks again!!