Vespa World Days 2011. 7 Roughnecks. 7 Vespas. 1 Rally.
I'd driven the Rally for one single day before driving 800kms to Gjøvik, and the scooter behaved all the way. Beat that!
Out with tank, rest the old lady on her side in the grass, remove tire and drum... Easy fix.
Telltale of defect simring; oil stains coming from axle spinning out.
Notice to myself regarding tubeless: Use weak thread lock on bolts...
Sim-ring removed, 47-27-6 if I remember correctly. The sim-ring looked undamaged, and afterwards I suspect that a too loose axle bolt might have caused the leakage, allowing too much radial play. The simring was reused on DC's 1958 model with same issue, only more severe...
No other problems detected, possibly a small leakage from exhaust.
Roughnecks, me second to right.
I ended up driving Gjøvik - Stavanger all alone on my way home. The backup truck started 2 hours behind me, and passed me first on Suleskaret, near home.
Except for running out of gas some kms before Notodden, the scooter would have behaved all the way home. But from Seljord and on, I experienced 6-8 motor stops, and several hundreds of hickups. Every time, just choking and starting the bike again would cure it. I suspect the 4 liter window cleanser can I used as an emergency gas can when running out of fuel still contained some window cleansing liquid...