1974 Suzuki TC125 Prospector
Posted on February 27, 2008 | Posted by Evan Fell | 26 Comments
The Suzuki TC125 is a really cool little bike. I bought this as a project to fix up but decided to sell it because I have too much going on in the garage right now.
Suzuki made this bike in a number of different sizes and gave them all interesting names like “Prospector”. I am blanking on the other models, but I believe it was a TC100, a TC125, a TC185, and a TC250.
These bikes are very cool, great little reliable 2 smokers that pump out a reasonable 13 horsepower. They are extremely easy to work on, get great gas mileage, and they are even able to cruise at highway speeds. This TC 125 has an 8 speed gearbox. It’s actually a standard 4 speed transmission with a reduction gear which can be put into use to create a High and a Low operating range. It’s designed that way to match the demands of both off-road and highway use.
Really, the only downsides to this bike are that it uses a 6 volt electrical system. The perfect bike for running errands and cruising around back roads and trails. I love it.
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26 Responses to “1974 Suzuki TC125 Prospector”
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I have owned nearly every make and model of vintage Japanese motorcycle as well as a number of other Europeans and more modern bikes. I do everything from simple fixes to full restorations. I also travel and ride every chance I get.
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February 27th, 2008 @ 10:44 pm
Is there a bike you don’t like?
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February 28th, 2008 @ 2:41 am
Not really. I’m not a fan of Honda CM’s. Or any production bike that uses the motor as a frame support.
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March 31st, 2008 @ 2:16 pm
Hi -
Do you still have the 125TC? If so, is it for sale?
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June 17th, 2008 @ 10:19 pm
I just bought on like this tc125 one for my 15 year girl to ride. her first bike…it is nice but still needs some work…
K
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August 17th, 2008 @ 2:44 pm
Hey I have one of these bikes that I had when I was 14 (27 now) it has been sitting in the garage this whole time and I have decided to pull it out and get it going again. Do you happen to have the manual or suggestion where to get a manual for it? thanks.
Crisis1837@cox.net
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March 18th, 2010 @ 10:18 pm
i just bought one of these bikes and am looking forward to getting it running. right now i’m having trouble with the spark plug. the bike is not putting enough power to make the plug actually spark. It has a batery on the bike and i was wondering if the battery has to have a full charge to start the bike?
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March 19th, 2010 @ 3:14 am
Hi Ryan – The TC125 does not require a battery to run. The battery is used as a ballast for the lights.
If the plug isn’t sparking then you’re going to need to run some checks on your coil and magneto. Make sure your plug is new!
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May 30th, 2010 @ 5:39 pm
I’m fixing up a TC125 and having trouble finding the 3.25-18 rear tire.
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May 30th, 2010 @ 6:23 pm
@Steve
You can run a 3.50 width tire without issue. A metric 80/100 or 90/100 tire should also be fine. I know Cheng Shin has at least a couple options available. I typically buy my tires at TiresUnlimited.com – but there are many other good sources in the links on the right.
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September 20th, 2010 @ 9:03 pm
Wiring diagram for a 1974 Suzuki 125TC
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tom Reply:
March 30th, 2011 at 1:06 pm
Hi,
If you write me, I will send you a .gif of the wiring diagram for the tc125
cheers
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the moon! Reply:
June 3rd, 2011 at 10:52 pm
could you send me this wireing diagram???
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jose noway Reply:
October 20th, 2011 at 2:23 pm
http://s675.photobucket.com/albums/vv118/hmmmnz2/suzuki/?action=view¤t=tstc125.jpg
Jaye Reply:
October 20th, 2011 at 10:24 am
Hi,
I am interested in the wireing diagram for the TC125 too!!! Could you please send me a copy of the .gif?
THanks,
Jaye
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jose noway Reply:
October 20th, 2011 at 2:24 pm
Here it is again-
http://s675.photobucket.com/albums/vv118/hmmmnz2/suzuki/?action=view¤t=tstc125.jpg
November 13th, 2010 @ 2:48 pm
Hi
i have a TC 125 
But the problem, it don’t want to start… and i have the Gas tank don’t want to be close!
I have just a low problem too with the Petrol Tap… It pours :S and i don’t know how repair it… Can you help me?
Thanks!
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December 29th, 2010 @ 10:17 am
Santa brought me a 1975 Prospector for Christmas. It was a great bike for my paper route and the logging trails in Alabama. I wrecked it countless times (minor) and still have the pavement nick’s on my legs and arms. A great bike! Sold it and used the cash to buy my first car.
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July 11th, 2011 @ 3:53 pm
where can I get a free wiring diagram for a 74 prospector suzuki ts125.download?
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jose noway Reply:
October 22nd, 2011 at 4:02 pm
see the links above for the wiring diagram
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Evan Fell Reply:
October 23rd, 2011 at 3:35 pm
Thanks for posting these diagrams!
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October 22nd, 2011 @ 11:09 pm
i got your reply AND DID THE LINKS ABOVE AND GOT NOTHING??/ HELP ME
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Evan Fell Reply:
October 23rd, 2011 at 3:35 pm
Jose Noway’s links work just fine.
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October 24th, 2011 @ 9:48 am
what I am saying is there is no tc125 suzuki prospector diagram.can you confirm this model please?
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June 26th, 2013 @ 7:08 pm
hi i have a tc125 which appears to have a gearbox problem and will require splitting the cases do you have a schematic of the gearbox or a manual as i dont want to dive in without any information ,i have repaired a few bike gearsets but i havnt come accross a dual range before thanks aussie paul
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