Hi newbie here ; I`m having a problem diagnosing a shift problem . The bike goes into 1st & neutral perfectly every time . When I try to upshift "nothing" no 2nd gear . Baught bike cheap recently and owner had it to a dealer ,was told it was a clutch gear went bad ? Looked clutch over ,seemed fine . Pulled motor to look at gears , all look fine. Tried a replacement shift pawl that looked better and it shifts up but not every time . wanted to get some advice before I slap it all back together . Any advice will be appreciated .