[jonnye]

My display came in and for the most part it works. My Grizzly is back up and running. The total damage from a cheap Chinese battery:
1) American battery (2 yr warranty) = $120
2) CDI = $100 (amazon) link=> https://www.amazon.com/gp/product/B019CTO7E4/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
3) Display = $80 (used EBAY)

The only fuses that were blown was the 10A ignition fuse that gave me the original short and that was do the power and ground pin shorted inside of the CDI unit.

I have the cdi also fuming and the screen does not work,
I bought the atv with that problem, what can a poor battery to cause this breakdown?

I think the cdi tuning shortens engine life

 

[jonnye]

I would check the regulator/rectifier since (like mine) if it goes bad, it could put out 20V (regulator craps out) that will fry the battery and destroy the sensitive electronics (display and CDI). Check this by putting a voltmeter on your battery and start your machine. It should read about 14.3-14.7V. Mine did this but after about 10 minutes of running it gets hot and breaks down it then shot to 20V. Immediately shut down and replace. I stewed over how a shorted battery could cause this (just didn't except it) then I seen it.

would have to find some kind of limiter diode 15v

 

[jonnye]

Looking at the electrical diagram there is a fuse that appears to protect the display. It is listed as the #4 backup fuse.

where is it?

 

[jonnye]

Under the seat. View attachment 36249

I have all of these revised

 

[jonnye]

Page 3-64 in the 660 owners manual indicates there is a 10 amp odometer fuse.

I have 2 of that box that are in short.
I will look at what they are

 

[jonnye]

Sorry....service manual.

Sent from my ME172V using Tapatalk

they are fine

 

[jonnye]

Interesting you posted this today. I been without a display for over a year now and just bought one and installed it today. Gave 45 dollar on craigslist.

If I find a cheap one, I'll