Pit Bike Motor in ATV

[Linc]

Hi Guys

I just got a miniquad with a FYM 125 motor in it, same motor as the Guy-Cooper CR-III. It's for Youth ATV racing and when this thing hits the track it will kill all the 90cc 2st quads by a mile.......but I want more.

I really dont know much about these motors, there are so many brands....are they all compatible?. Is anyone familiar with the Guy-Cooper motor, are they strong?

I need to do some work on this as Oz ATV rules allow for a max of 115.5cc so I may just buy a 3 head 110 motor.....opinions.

Wo....sorry to hit you with all this at once.

Linc

 

[hustle]

Why not tune the engine.

 

[Linc]

Ok done some lookin and fond "GONGYU" on the cylinder, never heard of it.

Is it known by another name/brand? if I'm after some aftermarket parts what is it compatible with?. I've heard it's a Jailing and I've heard GPX.....just confused.

Linc

 

[sympozium]

need engine number, should be down near your shift shaft

 

[roost]

hi, two of my mates have got these in there bikes one is a genuine Pitboss it has had a 138cc kit fitted it goes hard , the other is a 110 with 117cc kit goes good as well

 

[illusivedreams]

Hey buddy I think you will find you can use a 110 3 valve top end....

Than it will kill all.

The top end comes from Ducar or such .Uses two valves for intake and one for exuaghst.

I dont really min what peopl say or there opinions..I have ridden both 2 v and 3 v on the same motor and the difference is mind boggling ...Torque is the main gain that you will see..

A couple of links on the cam chain maybe as difficult as it gets.

We dont have them in stock but its deffinately something to consider...Will not cost more than $200 as opposed to other mods...Well $$$

 

[Linc]

need engine number, should be down near your shift shaft

FY152YMI
*06001944*

hope that helps, thanks heaps if you could find out for sure.

Linc

 

[Linc]

Hey buddy I think you will find you can use a 110 3 valve top end....

Than it will kill all.

The top end comes from Ducar or such .Uses two valves for intake and one for exuaghst.

I dont really min what peopl say or there opinions..I have ridden both 2 v and 3 v on the same motor and the difference is mind boggling ...Torque is the main gain that you will see..

A couple of links on the cam chain maybe as difficult as it gets.

We dont have them in stock but its deffinately something to consider...Will not cost more than $200 as opposed to other mods...Well $$$

OK, thanks for the suggestion, you dont have em in stock; do you know where I can get one, or a whole motor?

Linc

 

[Mack]

I would not replace your motor which is same as Jialing or GPX with a Ducar. There are tons of kits for the GPX/Jialing. If you want quick directions and accurate advise on where to get what you need to lower the cubic capacity whilst retaining perfomance, post your request to http://www.planetminis.com/forum.php

 

[Linc]

I would not replace your motor which is same as Jialing or GPX with a Ducar. There are tons of kits for the GPX/Jialing. If you want quick directions and accurate advise on where to get what you need to lower the cubic capacity whilst retaining perfomance, post your request to http://www.planetminis.com/forum.php

Thanks......see ya there?

Linc