Originally Posted by beerbelly
im not sure if outboards use the same system but on two stroke motorcycle engines if there left unstarted for years its common for the crank seals to dry out and perish thus leaving it with no way of compressing the fuel properly making them either not start or run badly. could be completely different on outboards tho
Yep, you are right re the crank seals (same on an outboard) usually though it is just the top one that dries, the bottom one tends not to dry out as it is in the bottom of the crankcase. Though that may be the case, the top seal is an easy fix once you get the flywheel off, tbh the bottom one is straight forward also, just depends how handy you are with the spanners.
The fact that it ran is a good sign after being stood for 8 years.
I would be more inclined to suspect the carb, blocked idle jet etc, stale fuel, a good clean, earth leads etc.
I can't realy comment on you buying it or not, it could be a 'good un' or a 'bad un'. would need at least some pictures.