SOHC.co.uk Forums > CB350/400

Chain guard on rear sprocket

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Oddjob:
Odd that set having only 1 starting tap but 4 finishing ones. You'd have thought all the same.

Bradders:
Thanks Lobo, it should be fun. Mind you I have enough trouble hanging  a picture straight let alone tapping a hole straight!

K2-K6:

--- Quote from: Bradders on October 04, 2022, 04:35:34 PM ---Thanks Lobo, it should be fun. Mind you I have enough trouble hanging  a picture straight let alone tapping a hole straight!

--- End quote ---

For the uninitiated in this area you need to be careful in using the tap. They are whole structure of tool steel which is hard and BRITTLE by it's very concise need to cut into steel.

Plenty of lubricant and correctly sized pilot hole needs to be observed to avoid snapping it, which can make it extremely difficult to extract  (depending on location and blind hole etc) there's no option to drill them out if really compromised. Should be reasonably easy to use in an open hole as it will pass right through on a sprocket.

I feel the rivet is the correct fastener though (as did honda) and maybe worth considering resetting them to get tight. Do they go right through the sprocket or are they blind and just in from one side ?

Bradders:
Hi K2-K6. I can see what you are saying, the last thing I want to do is mess up the sprocket. ( I’m not the most competent mechanic!). Just had a look at the sprocket and it appears the rivets go right through the sprocket.

XS850:
Hi, yes, the rivets are countersunk on the rear face of the sprocket & dome headed on the guard side.

Bruce

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