01 yamaha 115 2 stroke lost spark cylinder 2 & 4

[cuenta]

Hi guys .
I have a yamaha 115 with ignition problem
I already check the spark with a inline spark tester and only have strong spark on cylinder 1 &3 but cylinder 2 $ 4 the none .
I hope your help.
Thank

 

[Faztbullet]

model #

 

[boscoe99]

I would first check the output voltage from the pulser coils.

 

[cuenta]

model #

Model

model # 115 trxz

 

[cuenta]

I would first check the output voltage from the pulser coils.

The pulse coil send 2 different signal to 2 cylinder or is only 1 signal to 4 cylinders ?

 

[boscoe99]

Two pulser coils firing four cylinders.

One two-wire pulser coil fires two separate
cylinders at different times in the firing order.

 

[boscoe99]

 

[cuenta]

I just check the resistence on stator
Brown to red. = 915 ohm
Blue to black/red = 80ohm
Pulser.
W/red to w/yellow. = 320 ohm
W/green to w/black = 317 ohm.
Today I order a dva peak tester .

 

[Faztbullet]

Your engine should have the lost spark ignition ...as in 1 & 3 fire at same time as does 2 & 4.

 

[cuenta]

Your engine should have the lost spark ignition ...as in 1 & 3 fire at same time as does 2 & 4.

1 & 3 fire strong but 2 $ 4 nothing or very weak . To my eyes.
Yesterday I swapped the ignition coil 1 to 2 and 3 to 4 with the same result 2 & 4 not spark

 

[cuenta]

I just received the dva adapter, someone can clarify some doubts. for example the meter must be in A/c . Or d/c

 

[99yam40]

should be dc from what I remember
there is a cap, diode, and resister in there
but if that does not read properly it would not hurt to take a reading on AC just in case

 

[boscoe99]

DC setting.

 

[cuenta]

Stator test .
Brown to red. = 275 volt
Blue to black/red =75 volt
Pulse. Test
W/red to w/yellow. = 5 volt
W/green to w/black = 5volt.
I think the stator and pulse are good.

someone knows how to test the output of the cdi and the values

 

[boscoe99]

Where are you located?

 

[cuenta]

Jax. Florida

 

[boscoe99]

Stator test .
Brown to red. = 275 volt
Blue to black/red =75 volt
Pulse. Test
W/red to w/yellow. = 5 volt
W/green to w/black = 5volt.
I think the stator and pulse are good.

someone knows how to test the output of the cdi and the values

Is this a question or a statement?

 

[99yam40]

Stator test .
Brown to red. = 275 volt
Blue to black/red =75 volt
Pulse. Test
W/red to w/yellow. = 5 volt
W/green to w/black = 5volt.
I think the stator and pulse are good.

someone knows how to test the output of the cdi and the values

I would think the same place you found the specs/info on the charge coil and pulser coils would have the info for the CDI outputs

Service manual

 

[cuenta]

Is this a question or a statement?

Is this a question or a statement?

these are the results of the test I did yesterday

 

[99yam40]

these are the results of the test I did yesterday

you need to click to expand his replay to see the bolded part