When you don't have a funnel, but you do have a gear lube cap and an empty beer bottle, then you know what to do.

I just found this picture on my PC and thought I should share

It was used to squirt some fuel into a Polaris 500 from the late 60s/early 70s. We had to rebuild the fuel distributor thing, which was dirt cheap from a Polaris dealer. After that it really ripped! It was rolled, wrecked, jumped, etc and it's still kicking. Well, until the track ripped and got caught on the body. Now it's been put away for about 3 months and will return in another 9 months!