honda305 Home honda305 Auctions honda305 Gallery honda305 Forum


honda305.com Forum

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

perhaps the most basic newbie question!

Post Reply
Steveo123
honda305.com Member
Posts: 28
Joined: Thu Jun 15, 2017 6:56 am
Location: South Carolina

perhaps the most basic newbie question!

Post by Steveo123 » Sun Sep 10, 2017 6:19 pm

Hello everyone;

Please don't flame me! I'm new to the motorcycle world, and am refurbishing a 1966 CB77 as my first foray into the world of bikes. I have what I am hoping is a simple newbie-type question that might even make some of you laugh!

I had the engine out of the frame to re-build the top end, and just re-installed it this afternoon. As part of that process, I had both side covers off the lower end, and still have them off.

I received the bike without any motor oil in it at all. I poured some oil in the fill hole, and after about a quart, I had puddle forming right under the gear-change post, I moved the bike a few feet, and more oil leaked out somewhere just in front of the clutch plate assembly.

Is this a normal occurrence, that normally doesn't happen to folks with a clue who re-install the left-side engine cover before filling the thing with oil? Or do I have a leak(s) that I need to track down and address? Hopefully, the oil is simply traveling through the holes designed to feed oil into the left side area.

Thanks in advance!

Steveo (newbie!)

Hoosier Tom
honda305.com Member
Posts: 817
Joined: Fri Aug 15, 2008 10:34 pm
Location: Logansport, IN

Post by Hoosier Tom » Sun Sep 10, 2017 7:18 pm

Yes, you have to install the left side cover (clutch cover) before adding oil or you will get what you got- a mess. No flame here, you punished yourself already.

HT

Steveo123
honda305.com Member
Posts: 28
Joined: Thu Jun 15, 2017 6:56 am
Location: South Carolina

Post by Steveo123 » Sun Sep 10, 2017 7:50 pm

Thanks HT!

Glad to hear it's normal.

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

Post by Dick Eastman » Mon Sep 11, 2017 6:47 am

Most Japanese bikes have "wet clutches", i.e., the clutch runs in oil. This is why there is a gasket for the left cover. The right cover has no oil behind it - no gasket. The top and bottom engine cases have no gasket [due to all the bearing bore tolerances], but are sealed against oil leaks with a sealer.
A shop manual and parts manual will be a great help to you, especially since you are new to bikes - they eliminate a lot of head scratching [and subsequent hair loss].
Take your time, study manuals, ask questions here. Remember that these engines are aluminum, and bolts/screws must be tightened with a lot less torque than a cast iron automobile engines, hence the torque values in the manual. Over-tightening will strip aluminum threads, and will then require a thread repair, such as a Heli-Coil. Hope this helps.

Steveo123
honda305.com Member
Posts: 28
Joined: Thu Jun 15, 2017 6:56 am
Location: South Carolina

Post by Steveo123 » Mon Sep 11, 2017 6:52 am

Thank you, Dick, for the good advices!

I have the shop manual on pdf, and will take a closer look at it; it's a little tough to read, though, as the image quality leaves something to be desired...

Post Reply
cron




 

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