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listen2this1
- honda305.com Member
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- Joined: Thu Apr 12, 2018 12:54 pm
- Location: Kansas
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by listen2this1 » Thu May 31, 2018 11:18 pm
I knew going into this build that the kick start wasn't working. Since it hasn't run in 35 years I figured the spring in the ratchet system was bad. I was wrong. I'm guessing the bearing went bad and caused the shaft to seize. It got hot enough the gears on the shaft are seized. Now the hunt for a transmission.
20180531_214810 by
listen2this1, on Flickr
20180531_215813 by
listen2this1, on Flickr
20180531_222054 by
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Last edited by
listen2this1 on Mon Jun 04, 2018 9:11 am, edited 1 time in total.
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G-Man
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- Location: Derby, UK
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by G-Man » Fri Jun 01, 2018 1:46 am
Yep - you definitely need a new gearset!
Check out all of the oilways and the filter before you reassemble.
Did it have enough oil in it?
Can you tell if there was a full set of rollers?
How about the crankshaft?
G
listen2this1 wrote:I knew going into this build that I kick start wasn't working. Since it hasn't run in 35 years I figured the spring in the ratchet system was bad. I was wrong. I'm guessing the bearing went bad and caused the shaft to seize. It got hot enough the gears on the shaft are seized. Now the hunt for a transmission.
20180531_214810 by
listen2this1, on Flickr
20180531_215813 by
listen2this1, on Flickr
20180531_222054 by
listen2this1, on Flickr
Last edited by
G-Man on Fri Jun 01, 2018 6:56 am, edited 1 time in total.
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F
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AlanW
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- Location: Wirral UK.
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by AlanW » Fri Jun 01, 2018 3:27 am
Saw exactly the same on my elder brothers cb72 in 1966, it was 1 year old and well maintained. Fortunately we now know that if the kick start moves forward when the engine is running it's a sign that the shaft and bearings are probably starting to wear and need attention.
As G said, make sure there's no debris in the oilways and the crank.
Good luck with it.
Al.
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listen2this1
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- Location: Kansas
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by listen2this1 » Fri Jun 01, 2018 8:51 am
Not sure about the oil. It had a good amount in it when I drained it but that was from 35 years ago. I had another set of eyes look over it and everything else appears to look good and have all the correct pieces. We did find a couple pieces or metal in the pan. Going to look over again tonight.
Any tricks or tips on how to clear the oilways?
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G-Man
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by G-Man » Fri Jun 01, 2018 12:56 pm
I use pipe cleaners (soaked in solvent) and teapot brushes, but I am English. :-)
https://www.ebay.co.uk/itm/Mini-Bristle ... Sw8HBZGV8G
https://www.ebay.co.uk/itm/White-Flexib ... SwOy1aqPxl
G
listen2this1 wrote:Not sure about the oil. It had a good amount in it when I drained it but that was from 35 years ago. I had another set of eyes look over it and everything else appears to look good and have all the correct pieces. We did find a couple pieces or metal in the pan. Going to look over again tonight.
Any tricks or tips on how to clear the oilways?
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F