[viper 90 cdi mod] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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viper 90 cdi mod
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Posted by: loons

I have heard of a mod on the viper 90 to give it a little more ummph!

What wire should I clip, and where at. I thought some one said the green wire coming from the cdi, but I don't see a green wire. Any help?

Posted by: markvette

take the cdi out of its rubber pouch, the green wire is on the back of the cdi. it comes out and goes back in, clip it and you have no more rev limiter.

Mark

Posted by: TC440EX

Does this work on the 05 Viper 90r also?

Posted by: oldyeller

Remove the nose cone and locate the cdi...Pull upwards and it will come off of the metal tab and you can remove the cdi from the rubber pouch....
http://i45.photobucket.com/albums/f84/frdnut/img_27381.jpg

Posted by: oldyeller

Here is the cdi pulled out and the famous green wire already snipped...Be careful you don't pull the cdi out too far and disconnect the wires on the back side of it..I did and then had to do some trouble shooting when it wouldn't start..

http://i45.photobucket.com/albums/f84/frdnut/IMG_2734-1.jpg

Posted by: oldyeller

quote:
Originally posted by TC440EX
Does this work on the 05 Viper 90r also?

I believe the 05 and up versions had some kind of dial adjustment on the side of the cdi so you can turn it up in increments instead of the all or nothing style with the wire.

Posted by: Needmorehp

We have the dial one, does that work on those or do you need to buy an aftermarket one?

Posted by: markvette

on the ones with the dial even all the way up there is a rev limiter in them. there is no way to bypass the rev limiter in these cdi's. you will need the older style with the green wire or one with no rev limiter in it.

Mark

Posted by: Needmorehp

Well anyone got one of the old versions? Need one asap.

Posted by: markvette

i got one/

Mark

Posted by: Needmorehp

How much or do you want to get rid of it?

Posted by: Oldrrider

Will the older model CDI with the green wire replace the dial version on a 2005? Just plug, clip, and no more rev limit?

oldrrider

Posted by: markvette

yes they will.

Mark

Posted by: Northernrider

quote:
Originally posted by markvette
yes they will.

Mark

So Mark you say i can get a pre 05 withought reversel model CDI and it will plug into the 05 harness and work?

if this is correct, great news.. just want to be sure before i order one

Thanks

Kyle

Posted by: markvette

as long as you quad does not have reverse it will work. just clip the green wire and rev limiter is gone. i sold a guy one on here a couple of weeks ago.

Mark

Posted by: sc400ex_rider

can i use that cdi on a 50? its a 02 polaris but i think its eton made thx

Posted by: CWILKES7

Bought bike for Christmas for my 6 y.o. and bike is very slow.Sputters alot. I took the throttle screw all the way out and helped alittle. I took the grill off and adjusted the dial fromzero to 3 and bike would not start. Even when I turned back to zero I got nothing. Now what? I pulled the CDI out but not sure what I can do? Anybody know?

Posted by: etondaddy

Do you have spark ??

Posted by: CWILKES7

Im not getting anything. Its like there is some sort of shut off that that shut everything down.