Oh Snap…and these plugs

bigring

Active Member
Bike: '76 CB750 - two issues (presently :o)

1.) Taking out the crankshaft the other day I noticed the advancer shaft was slightly bent (before taking it all out)….hit the side of the case on the way out and SNAP. >:( F*ck!


http://www.flickr.com/photos/118181457@N06/12723999404/

Check out the duct tape that the PO had put on it. Must have been slipping?


http://www.flickr.com/photos/118181457@N06/12723999084/

And now I can't get the remainder out of the crankshaft. Any ideas? Tap and pull??

Found ONE used one on fleabay (and it's now gone) and a new one from http://www.yamiya750.com/index.php?main_page=advanced_search_result&search_in_description=1&keyword=advancer+shaft

Just wondering if anyone had a spare laying around that they wouldn't mind selling me?

2.) check out the spark plugs





The PO had four different kinds of plugs in - two of them, from what I understand, are actually recommended. Running too lean?

Thank for taking the time to have a look and any suggestions you have.

Cheers
 
Okay, located the part - should be here March 3. But now how do I get that broken bolt out? There's not a lot to grab on. Mentioned on another form and someone mentioned to weld on a bolt and turn it out. Don' t have access to welding tools….could make it happen if I had to. Anyone got any other ideas?

Thanks again for reading.
 
You could attempt to drill it and use an ez-out, but I'd weld a nut on it (not a bolt) and pull it that way.

The reason I say a nut and not a bolt btw, is because there's really no good way to cleanly weld a bolt on. A nut on the other hand will fit over the end and contain the weld material. Cleaner and less chamce of damage to the surrounding metal.
 
Thanks Von - that's exactly what I'm going to do. I have a buddy who can do the welding for me. Hopefully all goes well.

Cheers!
 
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