are 305 transmissions all the same gears

apophis · Post by **apophis** » Mon Jun 24, 2013 10:33 pm

based on my other thread, I have something wrong with 2nd gear on my CB77. can I use the tranny from a cl77?? are the gears the same?

jensey · Post by **jensey** » Tue Jun 25, 2013 12:38 am

Hi,

The C77 and the CB77 share some gears, but some are different. The C77 and CA77 also share 75 % of the gears, 25 % is different. I don't know about the CL and the bikes are mentioned by me, since I'm not a specialist on the CL's,

Jensen

G-Man · Post by **G-Man** » Tue Jun 25, 2013 1:55 am

The entire transmission will swap out. To check that individual gears can be swapped, just compare the two gears - number of teeth etc

Dreams and CBs have different ratios but I think that the CL has the same gears as the CB. A quick look at the CL parts list indicates that most of the gears are model code 268 (CB72/77) so you should be OK.

G

Hahnda · Post by **Hahnda** » Tue Jun 25, 2013 7:51 am

Its a fairly straight forward swap, just did it yesterday. CL trans into a CB. 4th gear was missing a tooth. I just swapped the whole transmission as the donor trans looked better.

One thing to keep in mind is the clutch splines. Shallow vs deep. You may or may not be able to use your current clutch depending on the donor trans.

apophis · Post by **apophis** » Tue Jun 25, 2013 11:55 am

I ordered an CL77 transmission from ebay (canada) that has the shift forks and drum included and all the gears looked good. If I only want to change 2nd gear, do the gears just slide off or do I have to press anything off first. Someone on this forum said I could flip the engine over and only disassemble the bottom end which I hope is true.

LOUD MOUSE · Post by **LOUD MOUSE** » Tue Jun 25, 2013 11:58 am

You do have a parts book. ................lm

apophis wrote:I ordered an CL77 transmission from ebay (canada) that has the shift forks and drum included and all the gears looked good. If I only want to change 2nd gear, do the gears just slide off or do I have to press anything off first. Someone on this forum said I could flip the engine over and only disassemble the bottom end which I hope is true.

apophis · Post by **apophis** » Tue Jun 25, 2013 12:53 pm

I have this manual, which is not great on the diagrams

http://www.ebay.com/itm/1961-68-Honda-3 ... 45&vxp=mtr

I am usually good with Clymer manuals. I just disassembled a 72 CL175 engine and rebuilt it a few weeks ago. I was told to get the Bill Silver book which I am guessing is "Motor Tuning, Repair and Maintenance Guide, 1961 - 1967"

update: ordered > Motor Tuning, Repair and Maintenance Guide, 1961 - 1967