cliffno350

Yeah with the Yamaha timing components, cam and valves the motor was better and maybe that cratered the trans? So a Yamaha motor will probably gut the axles... Sent from my moto g stylus using Tapatalk

Yup I agree they suck big bags of yeah, repaired timing chain and cam well replaced with Yamaha 660 raptor parts including all five valves, new Yamaha piston, (can't use 660 cylinder as hisun has longer stroke) got the china junk all back together, idled high for a while, but did finally idle down and run smoothly. Drove it mellow a few times, maybe 20 miles total. It really felt a lot quicker than last Massimo 700 I rode, maybe a different cam profile? Idk. So last ride I back out of shop put it in drive and it makes a horrible gear grind clash bam and don't move. @$#& bleep fluffing bleep. Trans is now junk, so I look at drive shaft it is sort flexing up and down but not turning, I get back in put in 4 wheel drive and drive back into shop in now front wheel drive and park it. I worked on a rhino 660 and it was some different some same. Has anyone here done that swap and just left carb on the motor? The above is a 2014 hisun 750 pos