What a great forum

[eDJ]

Hey everyone, Noob here. Yep another "Buckeye" from O-hi-O ! I'm down here around the Gallipolis area with "Mothman" and I call myself an "Appalachian American".

What brings me here is I'm finally going to try to set an old Tas QBM-23N I've had laying around in the box on a bike I fixed up like a Schwinn Suburban.

When I purchased the motor the fellow had removed it from his kid bike realizing he just wasn't safe on it and thought he'd act fast before real trouble
broke out. What I got was the motor unit. The small bracket that goes on the base of the right fork is missing, the muffler, the throttle/killswitch, and the inside securing brackets to bolt the engine fast to the fork tubes. I figure I can fabricate some of the stuff myself. I've had the motor awhile but the Info Superhighway was still a two lane dirt road back when I got the little Tas. Recently.....ya know it.....$4.00+ gas got me thinking about the project again. It could be a shot at doing alot of my local errands at 200+ mpg.

I found the "Acrobat" parts list download and images today on the Tanaka site. In the past I couldn't find much info on it but gas was like a dollar a gallon back then.

What I'd like to find is the point's and plug gap's & Carb needle settings and what other info applies. This motor is probably not even broken in yet. I figure from the way the guy I purchased it from talked, he made his kid think someone stold the motor rather than telling him he just wasn't ready for it. All he told me was his kid wasn't old enough and soon lost interest in it to baseball. But I figured he was on the level cause he owned the bicycle shop where I purchased it.

So, that's about me and my motorizedbike project.

Would love to hear from any other Tas QBM-23N owners, past owners, and those with any experience with one.

[colorider]

Welcome to the forum! You probably noticed I am a noob too! Your project sounds cool.

[fairracing31]

Welcome eDJ to the forum, Glad you joined us
I don't have any experience with the Tas... There are few here who have, hopefully they will drop a line in here.

[eDJ]

Thanks guys, I was just out in the garage while ago studying those photos I pulled off the net. It came to me that that TAS looks almost like a white handle bar basket. So I started thinking....ya know maybe I could disguise it to look like a handle bar basket with one of those white woven plastic baskets ya see on little girls bikes ? Possibly put some things in it to make it look like a basket full of groceries etc ? With a well thought out muffler....I was thinking of mounting an umbrella on the right side on the fork with the muffler at the bottom lookin like it's the support for the end of the umbrella. The TAS runs at 50:1 anyhow so I don't think it would be too smokey ? Hmmmm

You'd thinks cops would have better things to be suspicious of than some poor guy trying not to have to pour his paycheck in the gas tank each week.

[Bikeguy Joe]

Welcome from another Ahi-oan.

I had a TAS Spitz. First, you will likely not need to adjust the carb.

Points- .015-.020.
Plug- .025- .030.

The throttle can be made with a shift lever. The secondary muffler, (the one that mounts on the fork leg) can be done away with...doesn't help much except to direct exhaust down away from the rider. You could add a piece of silicone tubing from a hobby shop to do that.
The drive wheel will not last too long- maybe 1000 miles if you are lucky. Replace it with a similar sized skateboard wheel.

[Ilikeabikea]

Welcome to the forum. Bikeguyjoe is the tas go to guy. Lots of motorized bicycle enthusiasts here. Glad you joined.......................

[eDJ]

Thanks for all the comeback's on this project of mine. I've made my inside bracket clamps so I think I can make the motor hold firm now. I have a kill switch to ground the ignition and cut the motor off. Found an old shift lever with which to throttle the engine in my box of old parts.. I have about 6 bicycles now and this Subarban "knock-off" I built was a $5 dollar yard sale orphan which I tore down and re-build. Thus it's like new now. Where it started as a 10 speed Ross EuroSport 10, it's now with upright handlebars,
a "tractor seat", and chrome fenders, and new tires and innertubes.

I've been studying the Ohio codes regardings mopeds and bicycles equipped
with helper motors. So, I'm trying to find a turn signal brake light system or design and build one now.

What I'd most like to find is that "sub-muffler stay" which the motor adjustment rod connects to. It's Part #23 below:



Even if someone had that part and could temporarily remove it from the bike and trace it onto a post card and mail it to me I'd really apprecialte it. I'd buy the part if anyone had one to sell or could tell me where I could mail order it.

I figure I can adapt a lawnmower muffler to use as a sub muffler if it's necessary to keep the Ohio's State Patrol happy or get an inspection from the BMV to carry.

When I get time to get this project up and running I'll try to post some pictures.

Anyone who could assist my effort....feel free to IM me.

Thanks !

[Bikeguy Joe]

I can help you some....I hope.

That part can be made easily.

If you have the motor adjustment bar, that piece you seek can be made from some flat stock from tractor supply or Lowe's. The measurement from the axel hole to the 90 degree bend is 4" and the 90 degree bend is 1" wide with the hole in the center.

If you make it 2 1/4" longer passed the axel hole, you could then rivet or bolt another piece of flat to it with two holes drilled to accept the after muffler studs.

I don't think you'll need it to pass any inspections...as I said mine and the other here don't make any real difference in the sound, just where the exhaust goes. You could just zip tie the extra exhaust tube to the fork leg.

Let me know if that helps.