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ive got an 06 yz450f and i havent ridden it in 6 months, but this morning i took it out and it blew black oil out of the breather tube all over the chain, swing arm, tire (which slung it back onto the motor and up underneath the fenders). I had just replaced the throttle and put new tires and i...

ok so ive got the OPBS X 125cc...i just ported it and now when i have the throttle wide open it keeps almost coughing(like it keeps cutting out every couple of seconds), like its not getting enough gas. also when i am decelerating it makes pops out of the muffler. what do i need to do to the...

whats up i just took apart the top end and ported my OPBS X 125cc...i replaced my cam and all the head gaskets and when i was breaking it is i noticed there is a tiny bit of white smoke coming out during idle. I have only let it idle i haven't ridden it yet so i don't know how it performs but...

Ive got an OPBS X Chinese pit bike and i was to upgrade the front fork springs. Im going with the BBR KLX style springs but i dont know if i need the standard springs or the ones for "L" model. The orion website doesnt say which one fits they just say to write the model of my bike in the...

Hey there ive got a 2012 OPBS X pit bike, its Chinese. I took off the head and was wondering how much i need to torque the head down when i put it back on as well as i need to reset the valve gap and i dont know how much to set it for. thanks

Hi guys ive got 125cc orion X model. Its got a stock carb, k & n air filter, hi rev CDI, high performance coil. Recently after i put the high performance stuff on it started to red line after a cold start with the choke on. When i would shut the choke off it would die. after it would get...

First off let me say this bike blows hard but then again what do you expect, it is a Chinese bike. NEVER BUY FROM ORION EVER!!!! Its a 125cc OPBS X with and after market pipe and full brand new electrical system the whole electrical system when to pot after they set the CDI on the exhaust...