Hey guys maybe you can point me in the right direction. I purchased a Coolster 150cc to ride my kids around. I chabged the oil after the break in period ect. The nect day whike ripping with my son i had to make a U-turn, i go from drive to reverse no issue , at that point i could only get the side shifter to go back up to nuetral it refused to go into (drive) thr forward position almost like it was being blocked. I decided to turn the machine off at which time (with 0 effort) put it directly in forward and off we went ......any thoughts on whats going on? Why would it work fine stoping the engine and switching gears and why not while its running esspectialy if nuetral abd reverse gave me no issue

The throttle was preset from the dealer, with no adjustments so i don’t think a that could be the case especially it nuetral and reverse have no issues when I come to a complete stop apply the back brake and change gears.

What you’re saying makes sense now I think this post may be accurate. I guess now it’s just locating exactly what you’re talking about and trying to figure out how to make those adjustments but I appreciate the help and the input greatly appreciated my friend

this is idle was the issue, that you very much. However I just jumped on To put it through its paces and realize the back brake is not working at all. Zero pressure any thoughts I did notice a ball of red grease on the desk had it self I don’t know if it blew a seal somewhere but it worked fine last time we rode it any thoughts