Yamaha electro tester

[acollaro]

Does anyone know where I can find a Yamaha electro tester? P/n 90890-03021. I've searched ebay and google but all i've found was a manual and some old listings that were no longer active.

[Bubber]

WHAT PRAY TELL DOES IT DO?

 

[dingy]

All I saw in service manual dealt with spark plug gap testing.

 

Gary

[dingy]

Does anyone know where I can find a Yamaha electro tester? P/n 90890-03021. I've searched ebay and google but all i've found was a manual and some old listings that were no longer active.

 

Did you find manual for tester?

 

I would like to get a copy of it !!

 

Gary

[Prairiehammer]

Here's a pic of the Yamaha 'Electro Tester'. Just FYI:

http://3.bp.blogspot.com/-EpZKld6dsU4/Tgtv2vPMEyI/AAAAAAAAAF4/Ia-9EF9GanQ/s1600/Picture+010.jpg

 

Primarily it is a spark gap tester. Spark gap testers are available everywhere and for I suspect much less money than from Yamaha. Perhaps those cheaper ones will not be as sophisticated or 'cool' but they will do the same thing.

 

Here's a shot of the instruction graphics inside the lid.

http://i.ebayimg.com/00/s/MTIwMFgxNjAw/z/m0oAAMXQDnpTb-cT/$_57.JPG

Edited May 22, 2014 by Prairiehammer

[Prairiehammer]

Did you find manual for tester?

 

I would like to get a copy of it !!

 

Gary

 

Gary, do you suppose this is the correct manual?

http://www.ebay.ca/itm/manuel-YAMAHA-SPECIAL-TOOL-and-ELECTRO-TESTER-de-1970-/281084940912?pt=FR_JG_Moto_Manuels&hash=item4171f7d270

[dingy]

Gary, do you suppose this is the correct manual?

http://www.ebay.ca/itm/manuel-YAMAHA-SPECIAL-TOOL-and-ELECTRO-TESTER-de-1970-/281084940912?pt=FR_JG_Moto_Manuels&hash=item4171f7d270

 

 

Looks like it is, guess though.

 

Be neat to have if you have tester.

 

Gary

[djh3]

Spark plug gap tester??? Really? I mean we use to test them on an old SUn machine used for tune ups. But heck in the last heck 25 years I haven had a need. I have a tool that goes in place of the plug to test to see if you have spark. Plugs ain't that expensive, I just throw them out.

[dna9656]

Spark plug gap tester? Huh? Never heard of one.

[Neil86]

Its to test the voltage capability of the ignition....adjusting a gap the spark has to jump wider till it can't fire.

The electrotester is doing it on a running engine vs just grounding a plug to head.

They were using 0.25" (7 X spark plug gap) as the minimum acceptable for a good ignition system.

Edited May 29, 2014 by Neil86