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**Norman** · #**221** (**permalink**) 03-30-2008, 04:08 PM

Sailor can you post a picture of what is eating your lunch? Is it the nut holding on the mag/rotor and in your case the I 'm guessing the starter cup I'm wondering if the nut is stripped?! in that case send it back if its new.

deacon · #**222** (**permalink**) 03-30-2008, 05:18 PM

I have no idea about the end. Threaded would be far easier. With threaded you just run a bolt through the wheel and then into the shaft or weld a couple of bolts together if it is threaded outside. I have no idea what is what yet. I Guess I'll have to just get one and see what is what.

deacon · #**223** (**permalink**) 03-30-2008, 05:27 PM

I don't know yet I don't have one. Was trying to decide which one to buy. I wish they were like a lawn mower with threads inside the shaft but I doubt it. Oh well I will see soon enough I guess. I'll just buy what is available and work with what ever it is.

Hey BGJ how many cc is your friction drive. I can get a reconditioned weed eater gas 20cc for fifty bucks and a 25 for 60...

**Bikeguy Joe** · #**224** (**permalink**) 03-30-2008, 06:27 PM

I thnk the trimmer may be a better choice as blowers are designed to run wide open in a limited rpm range.

My bicycle motor is 23cc's I'd opt for something a little larger like 31-35cc's.

Just a thought.

deacon · #**225** (**permalink**) 04-01-2008, 06:23 AM

I bought a 31cc ryobi but I'm having a case of buyer's remorse. I'll just have to wait and see what it will do. I could have bought the weed eater brand 25cc for 60 bucks but something just drew me to the ryobi returned model. It has some parts missing it seems, but somehow I can make it work. I know a guy who has a lawnmower repair shop, i think I can get some used parts from him if I need them. I'm gonna try to make it work as it is just to say I did.

fireopal · #**226** (**permalink**) 04-18-2008, 03:13 PM

ok this question may already be in this thread or on this forum somewhere but got up to page 11 in this thread and didn't see it and you all are talking over my head right now... little info - i am a female and have no clue about motors but do tend to want quality and something that is gonna last a long time (4runner is now 17 years old and even though it is just starting to get signs that it is on its way to becoming a 'fred flinstone mobile" motor still runs like new lol).. so how do you know what kind of bicycle engine to buy - are there comparison reports somewhere that break it all down for you and/or does it really matter?

also i have a combination on road - off road bike that i am thinking about maybe converting so do engines come already put together, and if not, then am assuming they do come with instructions so are they easy to figure out?

deacon · #**227** (**permalink**) 04-18-2008, 04:24 PM

I don't personally think there is much difference in brand or seller. You pay your dollar you takes your chances.
The instructions suck eggs, but if you buy one just come here and everyone will be happy to help you put it on. Just plan on a week or so to get it on and running as it should.

It isn't too hard to do i did it and I'm all thumbs and no working brain so it won't be a huge problem for you. You might get better advice from the others..

**Bikeguy Joe** · #**228** (**permalink**) 04-18-2008, 04:31 PM

The 65-70-"80" cc engine kits (there are no real 80cc engines, they are all 67.5cc's) are all ABOUT the same...made in China, dubious quality control but lots of fun if you are into tinkering with stuff. The rack mounts I can't help much with other than to say look for one's with Japanese engines like Honda for starters. You do have to watch for things like "Honda designed"- which is a crock, or weird/no name brands on the engines.

Right now I am running a rack mount, which is 28 years old with NO PROBLEMS, other than it's pretty slow- 22 mph tops speed. It's called a TAS Spitz, they were also sold under the names Free Spirit (Sears) and Bike Bug.

The engines do all come "put together", except for mounting them on the bike, but the directions for the frame mount kits are good only for the bottom of the bird cage....that where we come in...the best directions are right here on this site.

Start here- Bicycle Motor Preperation And Care

Pablo · #**229** (**permalink**) 04-18-2008, 04:32 PM

Totally agree with the good Deacon. <$200? is the goal.

The only guaranty is that something will be wrong.

**Norman** · #**230** (**permalink**) 04-18-2008, 05:49 PM

I can fix almost anything on these bikes motorized engine kits. I did say almost.

You need help we can help or lie like a dog and make it sound like the truth.
Just kidding. I'd go for the 70cc engine kit and the cheapest you can find pm me if you want more info.
Norman