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Do u have any engine problems with ur gpx?

I've striped the gears in my gpx125 race engine and do not have a clue where you can buy them from , hade a look on eBay but there's nothing. Does anyone no where I can get parts for it??

So what needs replacing??

No carnt be due to the chain because it has never came off and is always reasonablelly tight and no there is no ringing sound it just skips like the cloth is engaging on and of all the time and makkes a sort off grinding noise

The engine is 2 months old and done 4 hours

Went for a ride today on my motovert and my gpx125 motor gears are playing up, 1st 2nd 4th are fine but when you hit 3rd it goes on and off the power like it is skipping and makes a wierd noise. What's wrong with it??

I have one in my motovert expert with a oko flatslide and it pulls harder Thant old 140

Are the 175 reliable? And do they go any harder than the 155??

I'm looking for a new engine to put in1 Of my motoverts I'm looking for a pitsterpro engine 155z,160ho,175z which 1 one of these motors will be most reliable and fast?? I only want to keep the engine STOCK!! No upgrades except oko flatslide carby

What is the fastest stock engine china make?

No_crf_ here do they go hard?

Are these new engines reliable or are they still having the same troubles they did with the 155z etc, and ate the a whole new engine or ate they just A 155z bored out? And do they really make 20hp?

Yes that engine, would the crower gpx g2 cam fit in this engine?

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Has any1 put a 146 bore kit on the Logan/gpx125? Is or would be worth it? And would it be competitive with 150, 160cc engines

I here these gpx125 engines have a removable oilfilter, were exactly are they??:confused:

gpx125 they will beat any stock 140 and are really pokey motors, exspecially with oko flatslides

Your properly right about the tar but when we have it on stage 3 on the dirt it doesn't like it at all Nevis most of the time where not in the high rev range, but your right there is really no difference at all just the price ;)

My oko flatslide has made a massive difference in power especially in the mid and top end and this is not a stock 125 it came with high comp piston inner rotor kit and race cam, my mate has a daytona 125 and we think there is no difference in motors at all :)

Do u run a 36/96 jets in your gpx