Need Help with Transmission 1978 125 CR

This is my first post on Cafe Husky, but i have a 1978 Husqvarna 125 CR and the Crankcase split gasket blew out, I have split the case replaced the seal but now when put back together the transmission down-shifts fine, but will not up-shift for the life of me. I would consult the Workshop Manual I have, but the center of the transmission section (figure 7-8) is not in the book (40 dollars well spent...).

the drum and the shifter need to be syncronized. the 2 pie segment gears. if too much one way or the shift drum not in proper than it "runs out of teeth" to go that way. Understand. I do not know what figure 7-8 is as you did not include and sorry but am not going to split a case of a 125 now to take pics for you

Heres 2 pgs from an early version shop manual on how to time the 6spd step feeder. This information is applicable to your 78 125 trans.

Mine did the same ,it has to be in fourth gear when assembling it as well.

4th gear is the book answer as all is "centered". I simply turn drum full clockwise (is first gear) and then leave room for 1 tooth and 1 tooth only. Bottom line as long as there are enough mating meshing teeth to go across the full throw of the 6 gears.

Always crap when you put it back together jump on it and it changes up then that's it. Thanks Joe.

It's in fourth gear with two teeth showing. In the manual they call teeth, cogs.

EASY METHOD FOR ME !






ONE !

TWO !

tree !
4 dents !