My third build : Doing it right

My previous motorized bicycle builds where poorly thought out and built but due to some circumstances I'm currently facing I've decided to renew my interest into motorized bicycles since I'm 100% positive my car insurance company hates my guts and plans to drop me the moment they can (I was in a car accident and have been without personal transportation for two months and have been using family to get to work).

I've decided to build a 2 stroke, the simplicity of the 2 stroke engine on top of it's customization abilities and it's curb appeal have made it my choice (and I can't go back on it since I've already ordered and received the kit). The bike I'm going to use is going to be a (and don't hate me for this because right now I have to watch my money) a Kent Bayside 2600 7 speed bike (I know I should avoid walmart bikes but it's readily available and it's really nice looking). I'm going to pack the bearings with automotive grease to prevent early failure.

I have a 49cc engine kit already and I'm going to replace all the hardware in the engine with this. I'm also going to replace the mounting bolts because that's what snapped on my first one. I'm considering a CNC milled sprocket and adapter instead of the bolt on sprocket that came with the kit but I need feedback on if it's worth the money. I have a speedometer and a basic bicycle light kit but I'm going to replace the rear light with one with turn signal capabilities.

I had another issue where my old chain tensioner fell into my spokes and ruined a perfectly good rim so after I tune the tensioner to the right location I'll mark it and drill a hole in the center of the tube the chain tensioner will be attached to and bolt it on.

I'm going to carry around a tool kit as well that'll fit the bolts, screws and nuts on the engine and bike, I need feedback on how to improve the bike beyond what I've already mentioned because I plan to be riding around 22 miles per day (44 miles round trip) in the Georgia summer heat (90-100 degrees) and I don't need break downs on side of rural roads that I have to travel on (I have to commute to a different city and can't take the highway obviously). I need suggestions for reliability for long rides in the heat, security suggestions because I might stay a few nights at a friends house who lives in the city I work in and they live in a bad neighborhood (I'm thinking of buying multiple locks and a tarp to cover it so no one sees the bike besides when I ride in), better light suggestions because I maybe driving in pitch black darkness since I sometimes get off work at 11 at night.
 
I repurchased the old bike, they just put it back on the shelf, still had the tiny scratch it had when I first tried fitting the engine, the heavy duty universal motor mount has been attached to the engine with loc-tite blue, when the motor mounts come I'll seal them with loc-tite red for the heat. I plan to attach the lights, pack the wheel bearings with SuperTech multi-duty complex hi-temp grease, start adding rubber padding to the engine mounts and wheel tensioner and bolt on the gear. When the engine's hardened nuts and bolts come ill seal them in with loc-tite blue.
 
start adding rubber padding to the engine mounts.

i think most folks here will agree to not add rubber padding to the engine mounts because it simply provides an almost guarantee opportunity for your engine to find more space to vibrate. even if it is on there, the motor vibrations will shred it to bits. you want ideally a flush and tight mount. wolfshoes showed a custom additional wood mount to secure more of the motor than two areas but that is pretty advance.

here is my list of key items:

- replace rag joint sprocket with hub adapter sprocket
- replace rear engine mount bolts with high grade steel bolts (most expensive and high grade possible)
- configure rear wheel sprocket and drive sprocket to have perfect alignment while wheel is turning
- check engine bolts and rear engine mount bolts for correct torque periodically (not sure how to do this without a torque wrench)
- have good brakes (LOL)
 
Update: I have the engine put back together after JB-welding the engine head studs, I attached the new engine mounts and sub-mounted it to the frame, I attempted to mount the new 0.8 gallon fuel tank to find my mounts are to small for the frame and the larger studs on the fuel tank so I just ordered bigger mounts. I also bit the bullet knowing I hate the rag joint and ordered a 40 tooth hub adapter sprocket. I have the speedometer and lights hooked up, I need to reroute the brakes to a single handle lever, pack the wheel bearings which I plan to do when I get off work tonight.
 
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