new engine

about a year ago, i built a 2 stroke 49cc kit. ran excellent, no problems. at least until the engine seized. bought a new engine last week (80cc), installed it, got it running, but it doesn't run well at all. the only thing that has changed is the engine. when i rotate the idle needle on the...

Hi all! I was a little overwhelmed trying to find a answer for a good starter motor so I decided to start my journey here. I have a 29" Mongoose Banish Mountain Bike I would like to use in my first build (A lot on ebay if you need to see it or check link below). This is a 21 Speed with...

I'm going to be building my first motorized bike soon, and have heard this stuff works wonders. I'm just completely unaware of which bolts to use it on. Also, any other suggestions or recommendations would be greatly appreciated.