1975 dt 250 shifting problem

[billy madison]

:bang: i pulled my dt 250's shift linkage off and had 1 of the teeth welded and i put it back on but still no shifting except 1st and neutral....so i pulled the shaft that connects to the shifter out and its bent! could this be my problem? :|

 

[whenfoxforks-ruled]

Can you shift through the gears by spinning the shift drum by hand?

 

[billy madison]

i dont think so

 

[whenfoxforks-ruled]

If you have the shifter off you can spin one of the shafts and shift through the gears,by turning the drum.

 

[billy madison]

nope i cant turn the drum or is it supposed to be really hard to turn?

 

[whenfoxforks-ruled]

Put the old shaft and shifter on and watch how it shifts,or supposed to,the drum is difficult to spin without the trans turning.

 

[billy madison]

the shift linkage wont spin the shift drum...it kind of slips over it and doesent turn it far enough

 

[whenfoxforks-ruled]

The shift drum rotates between the gears and the boss,pawl,star,thing on the end has to ratchet the drum in alignment for the different gears,the boss has to drive and return for each shift. All the parts of the shifting have to be in proper orientation to each other to work properly.The only way is to put the trans in neutral,make sure the boss is centered and slide the spindle in,centering the teeth on the fork and boss. With a pair of smooth jawed channel lock pliers you should be able to get it to shift,rock yhe entire drum and rotate the counter shaft sprocket at the same time. Spinning the drum in a counter clockwise direction should end up in 1st.

 

[billy madison]

do u have any diagrams of this? just so i can get a better idea

 

[billy madison]

k i guess not

 

[pryor]

I just got a book on line for one of my old yamahas, cost 20 bucks has lots of info and pictures to.

 

[whenfoxforks-ruled]

http://houseofmotorcycles.bikebandi...del_dept_id~632141~model_dept_name~DT250B.asp