pulling wire off #3 plug

[pnwboat]

Re: pulling wire off #3 plug

The trigger wires are in pairs, one pair for each cylinder. Disconnect one of the wires of the pairs from the terminal block say for #3 cylinder. It's important to disconnect one of the wires to eliminate other components that may be in the circuit that will affect your readings. Put you meter on the X1 scale for ohm's. Put one lead one the wire for #3 on the terminal block, and the other on the free end. It should read around 54 ohms. After checking, reconnect loose wire to terminal block.

Check the stator wires in exactly the same way. They should read somewhere between 680 and 850 ohms between the blue and yellow or brown/yellow and brown/blue wires depending on year motor you have.

 

[shawpdx1]

Re: pulling wire off #3 plug

this would be great if I had the right meter I have a cen-tech Digital multimeter dont see x1 setting I have DCV ACV DCA again and looks like K with 200 2000 etc Im sorry Im just not a electrical guy but Im faking it until I get it thanks

 

[pnwboat]

Re: pulling wire off #3 plug

Shawpdx1, under the ohms setting on your meter, you should have a 200 and a 2000. The 200 setting indicates that the maximum resistance you will read on that setting is 200 ohms. Any resistance over 200 ohms will peg the meter. Moving it to the 2000 setting, indicates the maximum reading you will see is 2000 ohms.

 

[shawpdx1]

Re: pulling wire off #3 plug

I got 733 on stator on both sets of blue and yellow wires and 51 on all trigger wires thanks I goggled it and it explained it to me so these reading say both trigger and stator are good right?

 

[pnwboat]

Re: pulling wire off #3 plug

Yes Shawpdx1 the resistance readings you are getting are within specs.

 

[shawpdx1]

Re: pulling wire off #3 plug

Thanks PNW looks like we are Neighbors Im in portland. could my rectifier cause spark issue? on #3 I got one from Radio shack. saw it on u-tube. I noticed he switched to a regulator by his post on here. Looks like I need to buy a CDI to start correct? appreciate the help
Thanks Ted

 

[pnwboat]

Re: pulling wire off #3 plug

Very doubtful the rectifier would cause the problem. I don't consider myself an expert by any means but the most common failure that I've seen are CD Modules. Coils also fail as do stators. Haven't seen many triggers fail. Also broken wires on the spade lug connectors on the ends of the wires that connect to the terminal block. There is usually a small piece of black heat shrink right where the spade lug is crimped on the wire. Sometime the wire breaks under the heat shrink. You cannot see the break. The only thing that is holding the wire to the spade lug connector is the heat shrink itself. Also bad grounds on the coils (each coil has a ground wire). If all this checks out, I would suspect that you have at least one bad CD Module.

 

[tonycrespo]

Re: pulling wire off #3 plug

thanks for the specs on trigger and stator, will check later today.
Any checks for the CD Modules and coils?

 

[pnwboat]

Re: pulling wire off #3 plug

Coils can be checked with a meter too. Primary side (white red/orange wire w/black tubular connector) to ground should read almost a dead short. .2 to 1 ohm. Secondary side (end of spark plug wire) to ground should read 800 - 1100 ohms.

There is a procedure to test the CD Modules in the manual but it requires a DVA adapter and good quality multi-meter. I've never done this so I don't have any experience.

Make sure all the wires that run underneath the flywheel are free and not rubbing hard against the block. Check the insulation on those wires, especially trigger wires. Make sure the insulation hasn't rubbed off and bare wires are shorting out against the block. As you advance the throttle, it moves the trigger assy. and associated wires. If the wires aren't dressed properly they may be shorting out.

 

[tonycrespo]

Re: pulling wire off #3 plug

yesterday I decided to follow each lead path from the stator to the coil and I found that the brwn/grn.blu and the brwn/blk/blu wires were reversed.
Someone took the time to number all the wires with tiny number labels and as I went through checking the wires I noticed that these were on the wrong terminal block postitions and labeled wrong.

The way it was wired, #2 plug was getting signals from the #6 lead from the stator, and #6 lead from the stator was going to #2 TB position. #6 is supposed to be wired to #1 postion on tb. According to the diagram on the motor.

I was hesitant to start moving wires around but I did and I think I notice a notable differance. I have not been on the water yet.

your thoughts

 

[pnwboat]

Re: pulling wire off #3 plug

The tiny numbers were probably the factory wiring. Most original stators, CD modules, trigger assy. have the number on the wires. At least the ones I've seen. From what I can tell you're correct in your wiring analysis. To be sure wire you might want to mention wire colors.

 

[tonycrespo]

Re: pulling wire off #3 plug

well, back to the drawing board.
I had her out tonight, fired her up, after she warmed up, I throttled her up on plane. I Cruised around alittle and all was fine, I backed her down to to an idle and hit her again and she started acting up again. Sputtering and loss of power. When I got back to the dock I checked and sure enough, #3 seemed not to be firing again, I mean I could hold the spark lead in my hand while she was running. I notice droplets of water around the carbs and intake and notice water bubbling inside the cowling. Could this be part of my ignition problem or maybe sucking water by why just # 3...

By the way, you guys have been so frakin helpful with your ideas and sugestions. I'd buy you all a cold one...

 

[pnwboat]

Re: pulling wire off #3 plug

Well I wouldn't exactly say back to the drawing board...we know that the stator, trigger, and coil windings check out OK, or check out OK when they're cold.

Double check all of the spade lug connectors on the terminal block. Broken/corroded wires under the black heat shrink tubing will cause intermittent or poor running motor. I ended up crimping and soldering on all new connectors on mine to fix an ignition problem. One of the trigger wires was only connected by a single strand of wire. Ohmed out OK, but I don't think it provided a good enough signal to the CD Modules to fire.

The test you did with the CD modules by using the unused half of the third CD module was inconclusive. There is an outside possibility that the unused half of the 3rd module is bad. You never know what some previous owner has done. Maybe he ran into the problem and moved it to that position knowing the bad portion would not be used in that position. I would physically swap the #1 CD module and the #2 CD module and see if the problem moves. You could swap all the wires between the two modules on the terminal block, but I'm not sure the wires will reach. Kind of a pain in the you know what, but you've done all of the easy stuff. Don't lose faith. You still have a few things to check.

 

[tonycrespo]

Re: pulling wire off #3 plug

Well I ordered a new CD module....
Wish me Luck

 

[pnwboat]

Re: pulling wire off #3 plug

Good Luck! I know what you're going through. Been there, done that.

 

[tonycrespo]

Re: pulling wire off #3 plug

my new cd module arrived and i have the old one out. it's raining so i can't install it but i'm ohming the two out here on the kitchen table.
both are the same except the ground and kill wire.
on the new i get 58ohms and on the old cd i get infinity...
is there something to this?

 

[tonycrespo]

Re: pulling wire off #3 plug

never mind, if i reverse the meter leads, both cd modules are ohming out the same. is this a good test? did i buy a cd mod for no reason...

 

[pnwboat]

Re: pulling wire off #3 plug

You really can't determine if a CD module is good or bad with an ohm meter. There's a lot of components inside the module that would have to be tested individually. You can't do that since it's sealed.

 

[another todd]

Re: pulling wire off #3 plug

Plus, as mentioned a couple posts ago but was not stressed enough IMO, Ignition parts often test good when cold and fail when hot and go back and forth with temperature. So with this type of problem it is helpful if you can test everything when the engine is hot and acting up.

 

[tonycrespo]

Re: pulling wire off #3 plug

hmm, well thats good news to hear. I'll be installing it this morning...
wish me luck and thanks for the info