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 Post subject: '79 CR250 clutch issue
PostPosted: Mon Oct 03, 2016 7:14 am 
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Joined: Sat Dec 12, 2015 7:46 am
Posts: 9
Just rebuilt a '79 CR 250. My problem is the clutch, specifically the clutch actuator arm and cable. Using a new cable and clutch plates, I cannot adjust the cable enough to get any more than a small amount of clutch disengagement. Both adjusters are all the way out and it's still not enough. It seems as if the cable is too long. The arm the cable attaches to moves thru most of its travel before it contacts the rod which pushes the pressure plate. So, I guess my question is what can I expect the correct amount of clutch actuator movement to be? If any of the above makes sense then any help is appreciated. Thanks.


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PostPosted: Tue Oct 04, 2016 2:00 pm 
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Joined: Mon Jun 01, 2015 6:29 am
Posts: 34
Location: Burlington NC
I had this same problem with my 79 YZ250 and 400 I had bought an aftermarket cable and they where too long. my fix was to locate NOS Yamaha cables and problem was solved.

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73 Honda CR250m
74 Honda CR250m
75 Honda CR250m1
76 Honda CR250m1
80 Honda CR250R
79 Yamaha YZ250F
79 Yamaha YZ400F
74 Yamaha GTMX80
75 Honda MT250 x3
66 Honda CA77 305 Dream x2
67 Honda CB77 305 Super Hawk
2009 Yamaha YZ250 2-smoker
2008 Honda CRF150RB


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PostPosted: Tue Oct 04, 2016 2:43 pm 
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Joined: Sat Dec 12, 2015 7:46 am
Posts: 9
I'm thinking that is my problem too. I used a new Terry cable. Should have worked but am now looking for an OEM cable. Thanks.
Mike


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PostPosted: Wed Oct 12, 2016 12:02 pm 
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Joined: Fri Jul 14, 2006 8:12 am
Posts: 323
Location: Wuppertal/Germany
had this problem and it was a worn pushrod.

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80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250


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PostPosted: Sat Oct 15, 2016 5:06 am 
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Joined: Sat Dec 12, 2015 7:46 am
Posts: 9
Thanks. I discovered the bracket that the clutch cable attaches to was incorrect for the bike. Found the correct one on ebay. Hasen't yet arrived but I'm sure it will make a big difference. Also have a new actuator arm.


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PostPosted: Sat Oct 15, 2016 1:15 pm 
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Joined: Fri Jul 14, 2006 8:12 am
Posts: 323
Location: Wuppertal/Germany
you should also change the needle bearing and the sealring.
theese are std. parts avaliable at a bearing shop.

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80 CR250Ra
80 CR250Ra
78 CR250R
80 CR80
82 Bultaco Sherpa 340
78 Bultaco Pursang 250 MK12
76 Bultaco Frontera 370 MK10
76 Bultaco Alpina 250
73 Bultaco Lobito 125 MK6
76 Suzuki RM125A
90 Kawasaki KX250


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PostPosted: Sat Oct 15, 2016 4:29 pm 
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Joined: Sat Dec 12, 2015 7:46 am
Posts: 9
I have a new seal. Bearing is a good idea too. Thanks!


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