Tech Forums > SOHC/4 Bikes

Drive Sprocket Guard/Shield

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mcpuffett:
hi, bob it depends on if the spare motor has mounts for the shield ,and before the problem of snapping chains there would'nt have been mountings for guards i think? but it sounds as though yours has had a engine case transplant to get one with no numbers.

Bob Wessner:
Even the spare motor has bolts in the same places, but no guard. One of the bolts, nearest to the outside, is used for a retaining clip to keep a wire away from the sprocket. It seems as though the retrofit was to simply design the gaurd to utilize these two bolts.

Hop on a Honda:
Bob.
I ordered one and the rubbing block 12 months ago, but when I tried to fit it, it was so tight  that the tollerance so close was almost 3MM Too tight The chain was replaced I took it back to Honda as well as the rubbing block on the little shaft.
I went back yesterday and there both gone.
Says NILL stock.
Dave

Bob Wessner:
Not sure what the rubbing block is you refer to. I know there is not too much clearance between the chain and the guard (which has a strip of rubber-like material on the inner surface). I seem to recall reading the clearance was deliberately tight, theory being it would not allow the chain to bunch-up in there and just feed on through.. that was the theory anyway.

cb750_chris:
Those bolts are probably case bolts that hold the thing together.  Holding the stator wire clip and chain protector are a secondary use for them. 

I wonder if the waranty case gan be given an engine # by someone with the right punches.

Any how.  If you plan on getting into the cylinders it would be a perfect time to get that free motor in shape.  No sense in getting into the cylinders if you arent going to freshen up the top end any ways.  The bottom end might only need cleaning, paint, swaping of the covers and some fresh gaskets.

The pistons/cylinders in that free motor might not be the same as the ones in the bike.  That would make fitting it's top end on the waranty motor a big job.  Best to hope for the top end only requiring to be honed and put it right back over the pistons it came off of with fresh rings.       

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