Yeah the Weber carbed ones were plagued with problems.It was all sorted out with the 907i.e.
My mate Clarkmeister had a 907.I found it to be a capable and comfy bike to ride.It handled reasonably well and the water cooled motor was a peach.The downsides were,it was fairly heavy,the bodywork was a bitch to get on and off and the ignition relays were sited in the frint where they got all the rain,spray and muck.Missfires?.........you bet!
I saw a dog rough 750 Paso for sale recently at a Newark autojumble.It looked very sad sat there and had no takers.
Tyres for the 16" rims are obsolete and I guess stuff like bodywork is unobtainium too.
The mirror/indicator pods used to fall off regulary as well.