2004 Yam 150TXRC no spark, starboard side

[rodbolt17]

the reason?
I took a look at my tune up spec guide.
no listing for a 200TXRC.
listings for SX,LX,VZ,F,VX,Z,LZ but no 200TXRC.
leaves 5 models of a 200 made in 2004 with 3 differeing ign systems.
all made by Yamaha all are different.
it is why a complete model number is rather important.

[ausnoelm]

OK, so I did bamboozle myself.......

[boscoe99]

https://www.vansoutboardparts.com/co...MAGES/FUEL.png

Is this not carbureted?

I like those clear images.

https://www.vansoutboardparts.com/co...CARBURETOR.png

[boscoe99]

A 150TXR(X) has carburetors.

A DX150, VX150, SX150, LX150 or F150 would have a conventional fuel injection system. A Z150 or VZ150 would have HPDI fuel injection.

[dray0151]

https://www.vansoutboardparts.com/co...MAGES/FUEL.png

Is this not carbureted?

[ausnoelm]

I don't know if I have confused myself with all the back and forth, but, isn't that model EFI? And sparks each side?

[99yam40]

he said he did not take those readings as he knew it was no use since it had no spark on that side.
I tried to get him to tho

at least that is the way i remember reading it

[boscoe99]

Minimum pulser coil peak voltage at cranking RPM unloaded is 3 volts, loaded it is 2 volts.

But this still does not explain an entire side failing to spark the plugs. Or does it?

Can you confirm that on the port side B/W ignition coil wires to ground that you are getting better than 150 peak volts loaded while cranking but that on the starboard side B/W ignition coil wires to ground that you are getting less than 150 volts. As in, how much less? Zero or something in between 0 and 150 plus?

[99yam40]

I guess my memory is not as good as I thought.
did remember the .5 low on something tho

have to wonder if Rodbolt was confused at the beginning or the end on the motor model #

[1oldoutboardtech]

No spark on starboard side?

Yes I use the Stevens CD-77. I did not say the charge coil output was low on 1 I said the pulser coil on 1 reading was .5 under at a cranking test but I know that's not the problem. The way it has been explained to me over and over theres no way the pulser coils, charge coils or cps can cause this problem. I don't even think that a bad ground would cause just 1 side to go out. Also in my original post I stated this is a Yamaha 2004 150TXRC.

[rodbolt17]

however if this is an SX or LX200txrc it is EFI.
EFI uses two identical charge coils, one for each bank.
it is kinda why complete model numbers are nessasary.

[rodbolt17]

only way I would test it is with either a stevens CD-77 or my DVM with a DVA adapter.
I rarely trust resistance measurements.
I want to see a voltage in and out of the CDI.

[99yam40]

from what I read one charge coil was a little under minimum spec.
I do not remember seeing any info on his testing of the CPS

we have not see any test results or what equipment was used to get those reading that he said were OK.

if good voltage in , but not good coming back out of the CDI unloaded with the Kill wire unhooked from the CDI then it would have to be inside the cdi.

but he has not given this info


but then maybe the OP is wrong about what motor he is dealing with

[boscoe99]

For anyone following along, here is the wiring diagram. What is common to the three plugs on the starboard side that are not firing? Only thing I can see are the spark plug grounds and the coil grounds. Which are reported to have been checked and confirmed to be working well.

[boscoe99]

one more time.

that system uses a high and low speed charge coil.
both feed 6 capacitors.
it uses two pulser coils to time the capacitor discharge for 4 cylinders.
the CDI assy uses a crank position sensor to make the spark for the other two.
CDI stands for Capacitor Discharge Ignition.
same as a merc switch box or a jonny/rude powerpack.
they all do the same thing.

in the trade it is called an alternator driven ign.
over the years we have seen points and magnetos.
12v amplifiers with points.
12v amplifiers with pulser or trigger coils.
CDI systems.
12V transistor systems.

it is all very simple to test.

No one is disputing that it is easy to test. The tests, all of them are very simple. Stupidly simple some might say.

But when all individual components test well, wiring tests well, plugs test well, but the system does not work well, where might the problem lie?

How about some help here?