clearance primary cover to Z plate

Can a few of you measure the clearance between the primary case and the Z plate? Probably with feeler gauges. I want to get an average.

5mm (850 Mk3 primary).

If the clearance is small that could be a sign the rear ISO is goosed.

2.5mm drill bit easy, 3mm a bit tight in a couple of places.
850 Mk2A with cNw primary covers.

Clearance in what direction?

approx 1.5mm at the tightest point, which is by the topmost footrest mounting. This is with the bike on its wheels and upright (with a block of wood beneath the RH footrest).

This is quite a difference. One time I was working on an 850 and the primary was touching the Z plate giving a lot of trouble fitting it up. That's when I noticed a slight bend to the two downtubes just below the headstock. This is the first thing I look for when I encounter a Commando new to me. The one I'm currently working on has very little clearance but no bent down tubes. The isos are completely sacked, I believe the original shims. The rubber gaiters are hard as a rock.

Saber said:

Clearance in what direction?

Click to expand...

Measuring fore and aft.