Ron I've already figured out the 'tricks' for dealing with the bar nuts (tool clearance with the handlebar, and the proximity of one of the bar nuts to the chainbrake band end). Also have figured out the tricks for threading a chain (including a 36" loop) around the clutch with a full wrap bar.
Frustration comes from the chainbrake type clutch cover and getting it on and off the saw with the small space between the 'narrow' full wrap handlebar, the bar studs, and the clutch on my SP-81. The non-CB cover isn't hard to get off and on in comparison. Just getting the cover clear of the studs is a challenge.........let alone getting it completely clear of the saw. Either it hangs on the clutch, the studs, the tank, the handlebar, or a combination them...
Not a lot of room there. Forgive the red saw. Only pic I have of the right side of the saw in question. Notice how close the CB lever is to the right side of the handlebar. The cover has to come out quite a bit to clear the clutch and the studs too...
Much more room with the non-CB clutch cover. Need to find a 'wide' full-wrap...