New Newb Big Time

Hello!

I have been reading for weeks and cannot believe how much information and support is on this forum. I've had my fair share of hobbies over the years and have visited many many forums but have never come across such an up beat positive forum.

Pulled my fathers 75 cb750four out of the barn 6 months ago and started rebuilding it. It has been sitting for over 15 years. Got her going and suddenly had flashbacks to dumping it and getting some pretty good rash. Decided I should start small and work my back up!

Well this is where the motorized bicycle comes in. Made a silly silly uneducated craigslist purchase on impulse and boy am I ashamed. Knowing a thing or two about motorcycles and cars I felt comfortable in my purchase. Unfortunately I didn't know a darn thing about bicycles.

I have since then stripped the entire motorized bicycle and thrown away 75% of the death trap and have started fresh. I will say I rode said deathtrap just long enough to get the itch!

Quick question. Having difficulties with chain length on drive side (engine). It is too short. The only thing I can think of us the adapter I had to use for my large tube frame has my engine at a pitch that is not allowing for the desired slack?

Thanks

Sheesh talk about a fast response.

2 Stroke, SD Stinger Motor. Purchased second hand but from a gentleman who did not seem skilled enough to change chain length. It is going from a mountain bike frame to a cruiser frame (cranbrook, yeah, I know).

Is anyway of knowing what my from factory length should be?

The position of where the motor is mounted does not seem likely eh?

Alright then thank you very much for the advice. I'll take another look at now and see what I can figure out.

Just a quick update:

Went ahead and bought new chain based on all of the advice given here. Borrowed a chain breaker and away I went. Got the new chain on and did some adjusting. Lots of adjusting later on the rear end and I have a running bike!

I got insanely lucky though. Contacted a local member here on the forums about our legal status with bikes and it turns out he lives about a mile away from me!

We've hung out a few times and my motorized bicycle would not be running without him. Rat Bones is one **** of a guy.

I actually really like that idea for a name. Thanks for the suggestion Massdrive. The new build feels much more safe and the only thing left from the last motorized bicycle is the motor. But I do like the name. Thanks.