Need help,timing way off!!!

[mrtool2u]

Motor is a 1993 Johnson 120hp. The timing spec on carb cover says 18degree BTDC,,but I came up with 23,with the boat on land.I pulled all the plugs,all were grounded,,unhooked the throttle cable,held the throttle wide open,and had my dad hit the key.I had a constant 23 degrees,which from what I have read would equate to 27 when the boat is scooting down the lake.I know this motor has been running fine on a houseboat for years,and I have run it 3 times so far on my boat with no problem,,,runs fine,idles fine..Did I do something wrong,,please set me right if I did.

 

[clanton]

Re: Need help,timing way off!!!

Its because you using the incorrect timing procedure. The engine is in Quick Start mode. You may be able to ground the white/black lead from the port temp sensor and shift the sensors to run mode. The engine needs to be at operating temps and running for 3/7 seconds to to shift from Quick Start to run. When this happens the timing moves about 6 degrees, that is why you are seeing 23 degrees.

 

[mrtool2u]

Re: Need help,timing way off!!!

Clanton,,,so if I stick the motor in a barrel for a few minutes,and run it and recheck it,I should get the correct readings.Next question,do all motors have the quick start mode. And last but not least,,my brother has a 1995 Rude 115,,can we check the timing the same way.It seems to me that I read somewhere that some motors have static timing,and you cannot use a timing light.Thanks in advance for any info.

 

[clanton]

Re: Need help,timing way off!!!

All engines do not have Quick Start. Is the 1995 115 a 60 degree engine or a 90 degree engine. The 60 degree is set static, if you have the tool. I use a timing light.<br />I would set the 120 like this, connect light, start engine, watch timing mark, as engine warms up, and drops out of QS the timing mark will drop back about 6 degrees. You are now looking at idle timing, if this is ok, then check the full advance at 5000 rpms loaded engine. Like in gear, in water.

 

[codkiller]

Re: Need help,timing way off!!!

clanton, Using your methord for setting the timing. Would full advanced be set per spec in the manual (which is 18 degrees BTDC for a 1990 200 Evinrude) or spec minus this 4 degree everyone talks about.<br /><br />Thanks

 

[rickdb1boat]

Re: Need help,timing way off!!!

Codkiller<br /><br />You would set it at 18*. Not the -4 degrees. That is for initial cranking settings.

 

[codkiller]

Re: Need help,timing way off!!!

Thanks rickdb1boat

 

[Solittle]

Re: Need help,timing way off!!!

If it runs fine & idles fine what are you trying to fix?

 

[mrtool2u]

Re: Need help,timing way off!!!

SoLittle,,,it is called always looking for the edge over my loudmouth brother,,just making sure it is running to it's peak..Clanton,,the 1995 Rude 115 is a 60 degree motor,,can we still time it the same way as the 90 degree 120.Thanks for your help!!!!Also,what should the idle timing be.