Topic: 1970 750 Shift drum mechanism

[Tews19]

I removed the shift drum outside mechansim with the pins. Now I'm at a loss as to where each pins is positioned..

If anyone is willing to watch the link and share insight. I will greatly appreciate it.

[Ujeni]

You must have a later 1970...mine are the earlier style...but the idea is the same. When in 1st or 5th, the shift arm should not be able to grab a pin. Here's the design:



As I remember it, there is one hole on the shift drum that is deeper than the other four holes. That hole aligns with the part of the plate (number 9 in the image above) that has no hole.

You'll know when you have it right because you will be in first and stepping down on the gear shift won't catch. The same with being in fifth when you lift up on the gear shift.

[Tews19]

You must have a later 1970...mine are the earlier style...but the idea is the same. When in 1st or 5th, the shift arm should not be able to grab a pin. Here's the design:



As I remember it, there is one hole on the shift drum that is deeper than the other four holes. That hole aligns with the part of the plate (number 9 in the image above) that has no hole.

You'll know when you have it right because you will be in first and stepping down on the gear shift won't catch. The same with being in fifth when you lift up on the gear shift.

My K0 is 30652 is i recall off hand. I'm able to get through the gears, on the way back, while in 3rd, it seems to miss the pin. I believe i need to order new springs. 

I'm pretty sure it's the pins i put in. There must be a specific order and I cant get the order down.

Mind sharing more insight Ujeni? I'll make a video of what I'm dealing with now if that will help.

[Ujeni]

Happy to help. A video would be great. I assume you are sure that your shift forks are in good condition. Just want to eliminate that possibility

[Tews19]

Happy to help. A video would be great. I assume you are sure that your shift forks are in good condition. Just want to eliminate that possibility

I didn't measure the shift forks, however the bike was running prior to disassembly.  She shifted great. I'll run out to make a video now.

[Xander^]

dont worry about the spindle only turning a little bit right now.. i was worrying about this also not long ago, it wouldnt shift into anything but 1st, nu, 2nd.. if u crank the engine over it will allow the rest of the gears to engage.

[Tews19]

dont worry about the spindle only turning a little bit right now.. i was worrying about this also not long ago, it wouldnt shift into anything but 1st, nu, 2nd.. if u crank the engine over it will allow the rest of the gears to engage.

Yep, Ujeni walked me through something. It's all buttoned up and cover is now installed.