75 JDX8 Tach

[kdowning08]

The tach on my 75 JDX8 doesnt work correctly. When the sled idles the tach seems to work correctly. But when if I give it any throttle the tach goes to zero and stays their. I cleaned all wire connections but nothing seemed to help. Thanks in advanced.

Keith

[JDT]

Try reversing the red and yellow wires.

[JD600]

Does your X8 have a CDI ignition or a points ignition? If it its a 75, it could have either one. These 2 ignitions require different tachs because of the number of pulse coils in the stator.

DE

[JDT]

Good point Justin.

So the question for Keith is did you replace the tach?

[kdowning08]

Its a CDI not points. I never replaced it that I recall. Is there any way to tell the difference between teh two? I first have to put the engine back together before can do any real testing.

[JD600]

Does one of the wires have an in line glass fuse? The next question would be, do your lights work?

DE

[kdowning08]

Yea it has a fuse and the fuse isnt blown, I tested it with a volt meter. The headlight works also. I also need a cylinder for it on the stator side. I cant find both .040 over pistons for it. PM me if anyone has one. (I also put my wanted cylinder in the classified section.)

[JD600]

Kieth,

I'm about 90% certain that these pistons are still avalible aftermarket. Matt, can you get them from PU or SPI?

DE

[harleysportster]

Yea it has a fuse and the fuse isnt blown, I tested it with a volt meter. The headlight works also. I also need a cylinder for it on the stator side. I cant find both .040 over pistons for it. PM me if anyone has one. (I also put my wanted cylinder in the classified section.)

Dennis Kirk Part #: 13-589, left hand... 13-890, right hand

[Matt]

Sorry, I can't be of any help. It's most likely been discontinued for a while.

[harleysportster]

Yea it has a fuse and the fuse isnt blown, I tested it with a volt meter. The headlight works also. I also need a cylinder for it on the stator side. I cant find both .040 over pistons for it. PM me if anyone has one. (I also put my wanted cylinder in the classified section.)

Dennis Kirk Part #: 13-589, left hand... 13-590, right hand

These part #'s were from a 2009 DK catalog. The right hand piston is now obsolete. The left hand is still available.