225 wvinrude will not shut off keeps running

[rusty bolts]

Hello , 1990 v6 225 evinrude today had not spark at boat ramp , brought home . plugged in spare set of controls that work still no spark changed power pack still no spark , tightened two black ground wires on top of pack . turn key starts right up , but will not shut off had to pull the wires of to get it to stop, Now what ? any idea of what to do do next ? thanks R

 

[boobie]

Re: 225 wvinrude will not shut off keeps running

Put the original controls back on it and see what happens. Your prob may just have been the ground wires.

 

[Greg_E]

Re: 225 wvinrude will not shut off keeps running

If your key switch is in the replacement control box it is probably missing the ground wire. If the original control works then that is the problem.

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

went back to original control box same thing happens. with the kill switch button out no lanyard. When I push kill switch button in, motor rpm change's? Also when I was testing for spark with spare controls the starter was engaged for a few seconds when the key was in the off position Would faulty solenoid cause this ?

 

[Greg_E]

Re: 225 wvinrude will not shut off keeps running

When you say it changes RPM's when you push the kill switch in is it running on 3 cylinders?

I'm a little confused by your last post.

With the lanyard in place or kill switch out (open)you start the engine and it runs on all six cylinders correct?

When you pull the lanyard off of the kill switch to close the kill switch does the engine continue to run on just the port side 3 cylinders?

With the lanyard in place does the engine run on just the port side three cylinders when the key switch is turned off?

If so the kill circuit for the stbd side of the engine has an open, and the stbd side of the power pack is not being shorted to ground when those switches are in the closed/ off position. (black w/yel stripe wires)
You may have an open in the shift interrupt switch harness. There is a diode in that harness that can fail open. Test the harness with an ohm meter while actuating the interrupt switch. You are reading the harness through the diode so test it one way then reverse the meter leads. If the diode is bad it will be open all the time . If it's good, you will see the meter go from low ohms to infinity when the switch is activated in one direction. The diode blocks current flow from the meter in one direction. If it is the diode, you can get something close at Radio Shack. It is not critical that it is the exact part number, as long as the specs are close.

Don't know if the starter issue is related.

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Will check the interrupt switch and harness where is the diode you are talking about? I do have a spare switch , When I push in the kill switch it still sound like it running on all cylinders . I guess the motor is not grounding out some where on the motor or a brake in the wiring , I just put this power head on from a short shaft lower to a long shaft . it has been starting and running good for a few weeks .

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Looks like the problem was in in the shift interrupt circuit ,I just change it out with a switch and harness from a parts motor had to replace the pin connecter on the black y/ kill wire from under the power that was not it I broke it pushing it out thanks RB

 

[Greg_E]

Re: 225 wvinrude will not shut off keeps running

The old shift interrupt switch is probably repairable. The diode is is under the plastic sleeve that covers the wires going to the switch. If you run your fingers down the sleeve you will feel a bump where the diode is crimped to the wires. If the switch is good, replace the diode and keep it for a spare. It cost about $100 for a new one. A couple diodes is probably $2.

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Look like that is not it . went to boat ramp, . no spark. while testing at ramp starter stayed engaged for a few seconds . came home changed to a spare set of controls so I don't have to climb on boat, I can stand in back,checked power pack out put no volts with or without black wires connected, changed pack to a v8 one I had laying around spark on 4 holes3 starboard side ,2 port removed power pack and coil sensor test no readings/ means good no ground? next check output test meter shows 130 volts or more front and rear sartor now what I have to get a analog ohmmeter for the next test ? or can I use a digital ?or should I just buy a new power pack and change the starter solenoid, any ideas what to do next driving me nuts any help would be appreciated thanks RB

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Look like that is not it . went to boat ramp, . no spark. while testing at ramp starter stayed engaged for a few seconds . came home changed to a spare set of controls so I don't have to climb on boat, I can stand in back,checked power pack out put no volts with or without black wires connected, changed pack to a v8 one I had laying around spark on 4 holes3 starboard side ,2 port removed power pack and coil sensor test no readings/ means good no ground? next check output test meter shows 130 volts or more front and rear sartor now what I have to get a analog ohmmeter for the next test ? or can I use a digital ?or should I just buy a new power pack and change the starter solenoid, any ideas what to do next driving me nuts any help would be appreciated thanks RB

 

[Greg_E]

Re: 225 wvinrude will not shut off keeps running

Use the CDI troubleshooting guide to check the ignition system. The OMC manual assumes you are using a specific meter and other specialized test equipment that makes it difficult to follow. You can use a peak reading DMM or a regular DMM with a DVA adapter.
It would seem you had two problems one you fixed and now you are back to the original problem. You probably created the running on after switch is turned off when you replaced the power pack. That's fixed and now your back to the original problem.
The starter solenoid could be bad. I don't know if the resistance values for the solenoid coil winds are listed anywhere, but if not maybe you can remove the wires from the small terminals and check the Ohms reading across those terminals against a known good solenoid.
Before you spend money on parts you may not need do the key switch tests to be sure the power pack black and yellow wires aren't being shorted to ground when the key switch is on.

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

How would a timer base be tested on the bench ? just ohms ? I have a spare. today I did try to test the timer base with a volt meter using jumpers and only get reading on one pin going to pack ,so I think that the TB is not telling the pack to spark ? who knows , ordered a new pack will pu tomorrow ,but want to test the spare TB on the bench is that possible with a regular MM with no DVA adapter ,I would like to know what is wrong with it and not just change parts but , thinking I should just take all the stuff of the spare.That motor got water in the cylinder because the aluminum around the cylinder was eaten away and started in on the steel cylinder wall, after many years of good use and never let me down it was stilling running good but low compression, I was going to go very soon . This power head we rebuilt a few years ago and was sitting, but hat a few good weeks with it until this ,a new e tech would be nice ,thanks for the help I have to get it going

 

[Greg_E]

Re: 225 wvinrude will not shut off keeps running

You can do the Ohms check on the bench with any MM.
Here's the link to the CDI manual. Page 106 has the resistance values.
CDI Electronics Practical Outboard Ignition Troubleshooting

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Hello I have good spark and changed the sator, timer base, harness ,vro, power pack, shift harness /power tt harness, with relays. the whole thing . from a known running motor with a bad cylinder, still will not shut off , if I ground the 2 black /yellow wires from the pack there should be no spark? correct if so then I must have connected the wires wrong . there are 3 wires coming from the shift harness one goes to ground on top of the pack if I mixed up the other two black /y from pack and b/y from harness would that give me the problem?

 

[Joe Reeves]

Re: 225 wvinrude will not shut off keeps running

(Ignition Kill Circuit)
(J. Reeves)

A Black wire (ground) should lead from the powerhead to the powerpack. There will also be a Black/Yellow wire leading from the powerpack to a raised "M" terminal of the ignition switch. To complete the circuit, there will be a Black wire from the other "M" terminal of the ignition switch to ground.

When the key is in the OFF position = The two "M" terminals are connected,. effectively shorting/killing the ignition.

When the key in ON position = The two "M" terminals are not connected and the ignition is engaged.

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Thanks I must be missing a wire ,doint know what I did but 2 b/y wires from pack go to two wires b/y wires from harness? and the shift harness has 1 ground and 2 b/y wires tha go ?

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Thanks I must be missing a wire ,doint know what I did but 2 b/y wires from pack go to two wires b/y wires from harness{ red plug} the shift harness has 3 wires 2 b/y and one ground 2 b/y wires, where do they go ?

 

[Greg_E]

Re: 225 wvinrude will not shut off keeps running

One of the B/Y wires from the shift interrupt switch connects the single pin plug on the stbd side of the power pack. The other B/Y wire from the shift interrupt switch goes to the stbd side single pin plug that located under the terminal strip cover. The single pin plug on the port side under the cover connects to the port side of the power pack. The B/Y wire(s) from the red plug go to those two connectors under the terminal strip cover. The B/Y in the red pug that mates to the engine harness goes to the M terminal on the ignition switch and to the kill switch that the lanyyard clips onto, if you boat has that feature. If the key switch is turned off or the lanyard is pulled off of the kill switch the B/Y wire is shorted to ground, shutting down the power pack. If neither one of those switches stops the engine, then they would both have to be bad (unlikely) or not connected to ground or you have an open in the B/Y wire between the ignition switch and the two connectors under the terminal strip cover.
As Joe has suggested, Check the ground wires, Check the switch Terminal M to M with the switch on and off. Battery switch off when you do this Check the B/Y wire from switch to power pack.
Ohm those wires out and you should be able to find the problem.

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

<http://img.photobucket.com/albums/v712/jdgti/1234/power pack/IMG_1576.jpg hear is a photo I guess I do not have enough wires /hears is a rundown 1 motor would not fire no spark ,changed pack from a 1990 225 {had to change two pins and boots . still no spark 2 changed shift harness , had spark and running , no shut down then no running,{ may have been because pins were not connected loose/broken from age and from playing around with them.3 Now I have spark and run but can not shut down . I think I have the wiring wrong and the trouble started because of loos or broken connections, any way this is the photo I have 2 b/y coming from pack 2 b/y wires from harness 1 black from pack to ground and one black from shift harness to ground and 2 b/y wires from shift harness but no where to go with one what ia mess I have the factory manual but cant seem to figure it out . thanks for any help

 

[rusty bolts]

Re: 225 wvinrude will not shut off keeps running

Now I know ,the two b/y wires from the shift interrupter harness clip to one another the other to ground had to go look at another motor, Now it runs and shuts off thanks for all you help