Re: spark plug keeps poppimg out
Sounds like the sparkplug hole threads are stripped. A small engine repair shop can put in a steel insert after tapping to a bigger size. Plus the insert will be much harder to strip. You need a new head gasket for it too.
Here you can get a bike tune-up through craigslist for $20. They grease and fix minor things for way less than a bikeshop. You need to get those axels fixed before they dump the bearings and then your in real trouble.
And if your going to run so fast it's scary then take to riding with MX pads and stuff. I don't speed but if I'm going any distance I look like I'm heading out on a motocross track. I just don't need to hurt if I can avoid it and the cagers don't give a f...