[trx90] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

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trx90
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Posted by: 2002xr250rider

Is there some kind of limiter in 4th gear on the trx 90?
when i was riding my little bros 90 on the beach it barely felt like the engine was working vary hard in 4th gear.

Posted by: 212racing

yes, it is a cdi limiter when removed will really make it run much faster in 4th gear

Posted by: Pappy

look fo rthe wires coming out of the cdi unit, you will want to cut the pink wire.

Posted by: onall4rs

pappy
when that pink wire reaches the first white clip conector
the pink wire is then replaced with a white wire then at the next conection block it the turns yellow as it goes into the engine cases
so what does this wire do ?
what if i was to cut it at the other end?
thanks paul uk

Posted by: Pappy

from what i was told, the pink wire controls 4th gear top speed. i geuss its a type of rev limiter? i snipped mine about 2 inches from the cdi junction and have had no troubles and she pulls out in 4th gear now!

Posted by: onall4rs

ill try it then as soon as the engine is fitted Im puting it into a kasea the engine is out of a crf 110cc with manaull clutch and electric start i had both bikes siting here and thought why not try some thing diffrent
I also noticed that they shared the same eletrics as the trx so hopfully engine mods will be the same

Posted by: Pappy

yep, we will be considering another engine for his this fall. we havent decided if we will just build this one or go with a clutch'd engine.