honda305 Home honda305 Auctions honda305 Gallery honda305 Forum


honda305.com Forum

Login
□ Search
□ FAQ 
□ 
Vintage Honda Owners,
Restorers, Riders and
Admirers

How to get neutral in a CB77?

Clutch, Transmission, Drive Chain, Sprockets
Post Reply
redblk63
honda305.com Member
Posts: 104
Joined: Mon Oct 15, 2007 5:16 pm
Location: pasadena, california

How to get neutral in a CB77?

Post by redblk63 » Wed Oct 14, 2015 3:57 pm

I have seen this show up here and there in questions, and would like to add my technique as well as ask for better ways.

The problem is that multiplate wet clutches always have some drag. When combined with the undercut dogs on our gears, it becomes almost impossible to shift to neutral from 1st or 2nd at a stop. This can be true even with a well adjusted clutch and cable. Maybe a new clutch with perfect dimensions is better, but I doubt it.

Once stopped, I need to turn off the engine to shift, which adds wear and tear to the starter. Obviously, shifting while rolling to the stop is preferred.

In addition, I'd like to say that what works best for me is to shift from 2nd to neutral without touching the clutch, at the speed where the engine idle RPM matches the road speed, so there is no torque being transmitted through the transmission from the rear wheel. This occurs close to 10 MPH in 2nd, and 6 MPH in 1st. Your idle speed may differ, but it is easy to feel when you pass through this speed.

Larry
Attachments
IMG_3351.JPG
IMG_3351.JPG (156.49 KiB) Viewed 2331 times

Dick Eastman
honda305.com Member
Posts: 273
Joined: Tue Aug 02, 2011 8:27 pm
Location: Troy Ohio

Post by Dick Eastman » Wed Oct 14, 2015 4:57 pm

Nice photo! You may want to read "trans problem solved" and "the clutch center". Mine now goes into neutral fine.
Dick

redblk63
honda305.com Member
Posts: 104
Joined: Mon Oct 15, 2007 5:16 pm
Location: pasadena, california

Post by redblk63 » Thu Oct 15, 2015 1:54 pm

Dick,

Thanks. The picture was taken at the Mt Wilson Observatory, where the red shifts were first measured to validate the Big Bang theory.

I cold no find "transmission problem solved", but I did enjoy reading "the clutch center". I must say that you have more dedication, and skill as well, than I do. Am I to understand that you can stop at a red light in gear, then shift into neutral while stopped?

If so, congratulations! I'll relegate my tip about shifting to neutral while rolling without disengaging the clutch to the lazy and/or cheap among us.

Picture below shows the same bike cooling off after advanced timing melted the right sparkp plug electrode down to the ceramic on the long climb to Randsburg (CA, not SA).

Best regards,
Larry
Attachments
IMG_6633.JPG
IMG_6633.JPG (197.09 KiB) Viewed 2258 times

Post Reply




 

CB-77 | CYP-77 | Road Test | Riding Log | Literature | Zen | Marketplace | VJ Survey | Links | Home