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Posted by: Geo TITLE: MOTORIZED BICYCLES:   Tanaka motor
I was curious if anyone else has tried this. I have a Taz motor with a worn out drive spindle. Has anyone tried a Goped spindle with these motors. They look more durable and easier to get. Wondering if they would fit before I buy one?

Thanks Geo
Posted by jj
Use the Google search box on any page of this site to search the archives for your Free Spirit motor.
Posted by Dan
I need info on a FREE SPIRIT ENGINE
Posted by Alex
Hi I have a TAS Motors QBM Auto. And would love to find info on it, its age, manual etc etc. It is currently in good shape but the drive wheel is FUBAR~! If anyone knows of people in australia with knowledge on this, id love their help... specially if they are willing to help for free (im a college student so broke)
Posted by Ian Ross
Hi I~m still looking for a GOOD Bridgestone Bam-Bee BS31 or BS41 . Seen plenty on Japanese web site but are next to impossible to buy , distance and language problems . Thanks Again Ian Ross
Posted by Ian Ross
Hi , I~m looking for ANY spare parts for a BS31 or BS41 Super BAM-BEE . These motors were made by FUJI PRECISION MACHINERY CO.LTD. a way back in the 1950s. Maybe I could be lucky and find a whole motor . Thanks ,Ian Ross
Posted by Ian Ross
Hi , I own a TANAKA SPITZ with no problems , except there are no spare parts here in the UK . I also own Bridgestone Bambi (BAM-BEE) BS31 . This is a clip on bicycle motor using a friction drive on the rear wheel rim . Once again NO spare parts or even any technical information.All that I have is some literature in Japanese script which I obviously can~t read . Can anybody out there help? Thanks , Ian Ross
Posted by jordi
I have tas tanaka bike in Spain.
I need a Fuel menbrane .
Thank you Jordi
Posted by jordi
I have tas tanaka bike in Spain.
I need a Fuel menbrane .
Thank you Jordi
Posted by Matt
I recently found a 1hp Taz Spitz bicycle engine. The engine does not run and I tested it for spark and it has none. My question is does one of these engines have a magnito system similar to a lawn mower engine?
Posted by Will
yo jeff i had the same problem we i bought a used scooter but i eventually found a way to fix it. i will tell u how to fix it if u can tell me how to remove a governor off a ninja bike. dont post it here send me a e-mail
Posted by jeff peterson
2 days ago I stopped a man from throwing out a 78 freespirit moped. It’s now in my garage. I have repaired most of the problems I could see. But it will not run correctly. If I spray a shot of starter spray into the carb it will fire. But it will not continue to run on it’s own. I’m looking for help in this area and I would like to find a manual for it. Can you help me?


Posted by Mike Schneider

PLease find some of the information & parts we have concerning them.
Literature & Parts

These little bike engines are really a HOOT. I have two mounted on mountain bikes and six on cruisers. They are such fun and real head turners. They are simple to work on but were designed by Japanese engineers so sometimes the why that way is interesting.

I remember seeing them in Popular Science as a 12-year boy - dreaming about having one. Three years ago I found one at a garage sale and rebuilt it - took me about three months - no manual, parts lists or diagram - just trail and error.

I finally found a man in New Jersey who had one who had a manual and experience rebuilding these engines. We became and still are long distance friends. Once I got that engine running and rode it - I was that 12 year boy again - What a Blessing.

I have since rebuilt eight engines and in the process of networking I have gathered an extensive amount of literature and experience plus figured out how to built or find parts that are better than original and cost less.

The Information Literature $25.00

· TAS Spitz, Aqua Bug Bike Bug, and Sear Free Spirit
QBM 23 and QBM 23 NA and QBM 23 Auto
· Owner~s Manual
· Shop Repair Manual
· Original Advertisement Literature
· Manufacturer~s Operating Tips
· Governor Removal Instructions (0.8 6000 RPM to 1.2 HP 7000 RPM increase)
· Technical Diagrams
· Parts Catalog
· Parts Lists
· Contact List for Tanaka parts
· 1977 Popular Mechanics Article (How To Motorize Your Bike)
· Collection of TAS Spitzs, AquaBug Bike Bugs, Sears Free Spirit Bike Motors featured in Tanaka Bike Motors – “America Favorite Bike Motor” July/ August 2002 Issue of BikeRod&Kustom Magazine www.bikerodnkustom.com and check the achieves for Tanaka Tales

Parts we have developed are:

· Primer Pump Replacement Bulb (Vinyl)
· Drive Roller Wheel (62mm - Faster, less wear, less expensive than original replacement)
· Safety Gas Tank Cap
· Muffler to Submuffler extension hose
· Mounting Kit for New Model Bike (5 ½” forks versus older 3 ½” forks)

Primer Bulb $20.00

The Primer Bulb Pump is not longer available form Tanaka – sold out. We have a one way check valve and primer bulb combo similar but different than Tanaka.

Drive Wheel $20.00

The Drive Wheel is another item that has been improved on design. The rubber of the drive hub simply deteriorates with age and wear. We have put a neoprene high-speed roller skate wheel (62 mm) over the aluminum drive hub. It wears less, vibrates the engines less and bike goes slightly faster per revolution. This drive hub wheel sells for $15.00 ready to mount over your existing aluminum hub.

Gas Tank Cap $10.00

The Safety Gas Tank Cap sells for $10.00 and has a safety-retaining ring that prevents loss. The ring slips over the gas tank neck and stays in place when the cap is removed to add gasoline. An original gas tank cap that does not have the safety ring can be bought from Tanaka for $15.00 plus $4.95 for shipping and handling.

Muffler to Sub Muffler Extension Hose $20.00

We have researched and experimented with various arrangements and have developed a wire reinforced high temperature hose that with stand the high temperatures developed by the engine. The current hoses we are selling have lasted for two years.

In ordering this hose it is important for us to know the size hose you need. The models have changed over the years and this hose size has increased on later models.

This part is no longer available for Tanaka.

Mounting System $15.00 - (5 1/2” forks – Newer Model Mountain Bikes & Cruisers)

The bikes made when these engines were made had 3 ½” wide forks – newer mid 1980s mountain bike and cruisers have a 5 ½” wide fork.

The Kit comes with the hardware and assembly directions to spread the mounting bracket apart to be able to mount the engines on bikes with wider forks than bikes had when these engines were built.

Other Parts

Some original manufacturer parts are available from Tanaka and Sears - no manuals though. My literature is from people like you and some from old but new in the box engines I have purchased. Also a lot of parts can be obtained form lawn mower and motorcycle shops.

Sears and ACE Hardware are good sources for gasoline hoses, air filter and metric nuts and bolts.
Replace the original transmission grease with Lithium base grease - wasn~t available when these engines were made. It lubricates better and you get a little more power to the wheel.
Original replacement drive hub can not be bought from Tanaka for $40.00 – Our improved high speed roller skate wheels are mounted on the original aluminum hub - They are slightly larger and run smoother - my bikes run faster, the engine works less and will last longer (I have some that are thee years old).
I also use synthetic 2-stroke oil (Bel Ray available form most motorcycle shops for racing 2 cycle motorcycles) in the gasoline - it lubricates better, engine runs faster, smoother and does not have carbon build up in the muffler.
An original gas tank cap can be bought from Tanaka for $15.00. Mine sells for $10.00 and has a safety-retaining ring that prevents loss.

Anyway, I can help you on rebuilding and mounting if you have specific questions after your review the information.

The literature I can copy and mail to you for $25.00 in the US. Send a check to - Don~t waste money on a money order:

Mike Schneider
1307 Country Place Circle
Houston, Texas 77079

Thanks allot and hope you have the wind in your face soon.

BTIW (Brothers In The Wind)


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