Before I dismantled the bike is was apparent that only two gears and a neutral could be selected in the gearbox. I'm not familiar with these bikes so I sort of work it out as I go. But I'm a bit stumped with this. The gear selector lever operates a shaft which extends through to the clutch side of the engine. This shaft the operates a pawl which rotates the shaft that selects the gears. The problem is that the shaft that the pawl operates appears to be either incorrectly assembled or missing a part. I'm not sure. The parts book is a little vague on how it should look.