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Transmission Hard Shift, No 2nd Gear.

Clutch, Transmission, Drive Chain, Sprockets
deafanddiabetic
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Transmission Hard Shift, No 2nd Gear.

Post by deafanddiabetic » Tue Feb 24, 2015 1:58 pm

There's a few threads about this but nothing with pictures or with the exact information that I'm looking for.

When I was able to ride the CA72, after adjusting the clutch it took a very hard kick to get the bike into 2nd gear, but would downshift very easily and would go into 1st from Neutral, and vice versa very easily. Obviously a hard kick is not how it should engage.

LM told me I might have a worn shift drum or other things that could need replacing.

I'm ready to crack the case, but I don't exactly know what to take off?

Do I just remove the screws on the left side cover and that will give me access to all transmission components?

I will post pictures of my tranny once I've figured out how to safely remove the cover. Thanks for any input!

teazer
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Post by teazer » Wed Feb 25, 2015 10:42 am

To get to the gears and shifter mechanism, the bottom half of the crankcase has to be removed.

Before you do that though, are we talking about hard shifting on a running motor in the bike or sitting on the bench?

If the motor is not running, it can be extremely difficult to shift - until you rotate the motor or output shaft to allow the dogs to line up.

deafanddiabetic
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Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Post by deafanddiabetic » Wed Feb 25, 2015 3:24 pm

Bummer, I just had the engine out to replace the cam chain and literally put it back in last night. So many hours spent on this stupid thing.


It's when it's running. I've never tried to shift without it running.

Replaced all the fluids, have my ball bearing, set the clutch correctly, but I had to kick the hell out of the level to get it to move from 1st to 2nd. It got there, but it wasn't pretty.

LOUD MOUSE
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Post by LOUD MOUSE » Wed Feb 25, 2015 5:23 pm

Please call again and I'll help ya. ..........lm
deafanddiabetic wrote:Bummer, I just had the engine out to replace the cam chain and literally put it back in last night. So many hours spent on this stupid thing.


It's when it's running. I've never tried to shift without it running.

Replaced all the fluids, have my ball bearing, set the clutch correctly, but I had to kick the hell out of the level to get it to move from 1st to 2nd. It got there, but it wasn't pretty.

deafanddiabetic
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Posts: 258
Joined: Thu Jun 19, 2014 6:04 pm
Location: Nebraska

Post by deafanddiabetic » Tue Mar 03, 2015 1:04 pm

I'll get you called when I can, Ed.

I have lots of computer time at work so it tends to be easier to post on here.

I got the cover off, I didn't realize at first that one of the screws holding the cover on is also the screw for the oil pump cover. Doh!

Anyway, I took the clutch plates out, they measure correctly. I was trying to remove the clutch basket with the chain and sprockets attached my repair manual does not explain how to do this. There is a washer with a bent down tang that I think is holding the whole thing in place. Honestly, I don't know what I'm looking for but as I understand it now that I can see some of the inner workings, when I move my shift lever I can see an arm moving behind the clutch basket, I think that's what connects to the shift drum. We'll see once I get this sucker out.

I do already have the oil pump and chain off.
Attachments
Clutch Basket.jpg
Clutch Basket.jpg (119.05 KiB) Viewed 3236 times

mike1969
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shift

Post by mike1969 » Tue Mar 03, 2015 2:14 pm

Bend back the tab-tabs. Get a brass punch and a hammer. Put the punch in the groove and rap on it counterclockwise and it will unscrew.
I had a feeling you forgot one screw on the clutch cover. It's an easy mistake.
Last edited by mike1969 on Tue Mar 03, 2015 3:47 pm, edited 1 time in total.

Hoosier Tom
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Post by Hoosier Tom » Tue Mar 03, 2015 2:20 pm

DD,

Give attention to the crank nuts orientation when reinstalling. It's on backwards now. The bevel side faces the washer with the flat side out.

HT

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