Tms offroad 50cc > fun toy

[matasar]

3rd attempt!

Last 2 attempt ended with no battery and blackness on phone just before post.

Anyway this is an Tms offroad 50cc project.

Engine is replaced with 230cc pushrod 167fmm engine.
Tires are 140/18 rear and 110/18 front.
Its like running a wave kinda.

Carb replaced and it has baotian 6pin Cdi now.
Most wiring is remade after a mess with anycolor and ducktape solution.
Some paint job and replaced cheap parts that does Not vibrate or has loose parts in them.

It runs very very nice, really impressed by engine after adjusting everything!
Starts every morning same sec you hit start button and idle is really stable and can be very low.


Made my own exaust of stainless steel cuz thats something i work with on work.
It made the biggest difference in performance.
Before it would pull good up to 4000rpm, after it pulls all way to 7000 i guess.
Stock exaust has some wierd catalysator...amazingly bad idea.

Found an cheap Koso Rx2n multi tacometer that i will try mount this evening.http://www.chinariders.net/picture.php?albumid=68&pictureid=345

With a bit unlegal scooter then i least want to hold correct speed on a few cuz of police.
Might be good, will update if anyone cares later.
Just something to spend a few hours on in life and then move on to next idea, that can be a boat or computer or whatever i stumple upon.

And much more..

[matasar]

All ideas about paint and style are welcome.
It has dual headlight i hope i can make look good soon as its a bit different.

(Uploading pics with android is a major disaster)

[bogieboy]

Very nice!!!! An fyi, if you get a photobucket account, you can upload pics to that thru the mobile app and just copy an image code link and paste it in the txt, its very simple...

[matasar]

http://www.chinariders.net/picture.php?albumid=68&pictureid=351

http://www.chinariders.net/picture.php?albumid=68&pictureid=348

http://www.chinariders.net/picture.php?albumid=68&pictureid=347

not ok but will do for a while. tomorrow wiring if time.

[SpudRider]

Thanks for taking the time to document your work with photographs, and sharing your project with us. :tup:

[tecnolli]

Cool bike! I like the 18" front wheel, looks great!

[Weldangrind]

Very cool! May we please see a close-up of the exhaust?

I would like to learn more about the tach. Do you have a link for it?

Did you lace the front rim yourself?

[zingshoen]

excellent looking bike! :tup: :clap:colour scheme + style are great without being over the top, ie still practical.

do you have a front view and link for the double headlights? which carb a you running?
how wide is your header pipe? is your muffler unrestricted or do you have a baffle plate or silencer?
would also like to know more about the tach and how you wire it.

how much does the tms 50 weigh originally? yours could be quite a rocket.

[matasar]

Rims are stock. Painted with black can and striped with red tape. Then
clear finish is sprayed on.
Im from Sweden and dont know all words ;)
Exaust is 33mm and i used the plate and first piece "30mm or so" from stock exaust.
The catalysator made the engine and exaust very hot.

Will update with more. Pics. There are a few in album.
Need a new holder for tach. I hate the look.

Wiring koso will take time. It show speed with magnet sensor and
gears and alot more. Also oiltemp watertemp etc.

See www.youtube.com/watch?v=TQ78LGLTxac&feature=youtube_gdata_player for tach.

[matasar]

Spent 30min on work creating adapter.
Feel a bit more positive.
And i want to create a bad ass stearing handle..it looks like a bicycle!!!


http://www.chinariders.net/picture.php?albumid=68&pictureid=354

http://www.chinariders.net/picture.php?albumid=68&pictureid=353

[Weldangrind]

I really like that Koso. Do you have a link for it?

[matasar]

http://www.youtube.com/watch?v=TQ78LGLTxac
http://vimeo.com/m/15700842

http://www.kosonorthamerica.com/

http://www.wristtwisters.com/forums/misc.php?external_page=http%3A%2F%2Fvimeo.com%2F15 700842

Function, setting instruction Needle tachometer Display range: 0~16,000 RPM

Digital tachometer Setting range 0~16,000 RPM

Setting unit: 100 RPM

Display internal <0.5 second

Shift light Setting range: 5,000~16,000 RPM

Setting unit: 100 RPM

Pre-Shift light Setting range: 500~5,000 RPM

Setting unit: 100 RPM

Max. RPM record Display range：0~16,000 RPM

Stroke / piston setting 2 Stroke: 1, 2, 3, 4 pistons

4 Stroke: 1, 2, 3, 4, 5, 6, 8, 10, 12 pistons

Thermometer Display range: 0~150 ℃ (32~302℉)

Display unit: 1℃ (1℉)

Display internal <0.5 second

Over heat warning light Setting range: 60~150℃ (140~302℉)

Setting unit: 1℃ (1℉)

TOP temperature record Setting range：0~150℃ (32~302℉)

Battery type 9V-1604, 6LR61

Effective temperature range -10~+60℃

Meter standard JIS D 0203 S2

Meter size 135.7 X 100.7 X 52 mm

Meter weight Around 240 g

Telltales Temperature alarm (RED) ． The RPM shift light (RED) ． Pre-shift light (YELLOW)

[matasar]

Better but wasting space.
Gonna start wiring..

http://www.chinariders.net/picture.php?albumid=68&pictureid=355

[matasar]

Ground, backup power and regular power, also RPM connected so far.
Tried it before it was to dark.
Fun thing..
Best thing so far was that brown in diagram was +
But there was no brown cable!!
Its was purple...amazingly bad.

https://www.youtube.com/watch?v=ESQUmRsNce0&feature=youtube_gdata_player

[Weldangrind]

Wow, $400 is a little steep for my Scottish China-riding heart. Nice gauge though.

I tried to click on your vid, but it said it was private.

[matasar]

I bought it useď to a good price.

[tecnolli]

http://www.enduroshop.de/index.php?cPath=375_655
They offer the RX2-N for about 350$, shipping to the US included.

The RX1-N has almost the same features for about 290$, shipping included.

[SpudRider]

I also got the "private video" message. :ohno:

[matasar]

Fixed..will connect speedsensor this evening.
Will later shorten the bike 2dm or so at back.

[matasar]

After a 26hour shift on work and vacation i finally got to wire the rest and mount sensor.
Sensor i just cut some plastic and drilled 2 holes and then some glue on it.

Gearing was wrong since before, N light had no wire so i had to install new one.
Everything works now, gonna see if oil temp sensor is expensive.

Also want a fuel sensor in tank so i know when i need gas.
Also changed the gauge ones more, im never really satisfied.


http://chinariders.net/picture.php?albumid=68&pictureid=366
http://chinariders.net/picture.php?albumid=68&pictureid=368
http://chinariders.net/picture.php?albumid=68&pictureid=365
http://chinariders.net/picture.php?albumid=68&pictureid=367

[matasar]

Next is to make a wind shield that fits nice in front of gauge and down to lights.

[tecnolli]

Nice job! Do you still have a main switch and placed it somewhere else?
I ask because i got almost the same job to do. New instruments, you know... ;). My main switch might be in the way.

[matasar]

yes the key is behind it and reachable. but it would be nice to move key somewhere else.

[matasar]

It tried running upwars in soft sand today..it just worked its way forward until top.
Front tire was awesome, its just ran above sand so steering was no problem.
Gotta do that again!!

Also use very little air in frontire, makes riding on asfalt alot nicer.

[tecnolli]

I just discovered pictures from the TMS Offroad50 in stock condition. Man, you did a great job. Your bike looks much better than stock, amazing difference.

You told us that you changed the 50cc engine to a 250cc. Did you need to change the frame mounting adapters also? And where did you get the 250cc engine from?

[matasar]

i bought it stock but with an atv engine on it that was running terrible.
it fits right upon ram, same holes so i guess its some chinese atv.
i worked on it for some time yes, about 1 month some hour here and there.
i checked everything many times and replaced bolts and such also to be safe riding.

mine: http://www.chinariders.net/picture.php?albumid=68&pictureid=369

stock: http://cdn.blocket.com/static/1/images_full/93/9358230421.jpg

[tecnolli]

I can only repeat: Great job! :tup:
What a difference in appearance these fat knobby tires make. Seems like a completely different bike.

Did i understand right, the bike had an ATV engine with 50cc? And with a reverse gear? :wtf: Crazy idea.
Or was it already a 250cc ATV engine?

[matasar]

those tires are not fun on asfalt first!
but in wood and sand and such its very fun.

it first had an 4stroke 50cc.
but it brooke, they all did before cuz of some shift gear axle made with wrong metal.
so an 250 167fmm pushrod was mounted and fitted into same holes.
its actually 230cc on paper, runs very smooth and no problems at all.

changed cdi to one from baotian that had manual setting on timing advance.
took me about 1 week to find why it was dying at full throttle.
replaced and mixed stators, pickup, cdi and checked all wiring and carb.
had 20 pappers printed on chinese electric system and wiring..

but problem was that main jet were to big ;)

sprocket was difficult, had to find something lookalike and lathe centrum and drill it.
went from 52 to 36 back.
rpm 5000 at 80km/h i think.
guess it makes 120 max..tires take alot of power
no reverse i think but not sure, do they have electric security or something ?

[tecnolli]

Ah, i think i fixed my misunderstanding. The 167fmm engines exist in at least two different versions, first with 5-speed gearbox for bikes, and second with 4-speed plus reverse for ATVs. To complete our confusion the chinese didn't change the engine codes.
My Skyteam Cobra with vertical cylinder (might be the same engine as your stock 50cc) is named 139FMA-2. The same code is used for chinese copies of Honda Dax or Monkey with a horizontal cylinder. :ohno:

But nice to know that the 230cc engine dropped right in. :tup:

[ghcoe]

Wow, $400 is a little steep for my Scottish China-riding heart. Nice gauge though.

How about a China gage to go with your China-riding heart?

http://www.ebay.com/itm/NEW-Blue-LCD-Digital-Backligh-Speedometer-Odometer-Motorcyle-Motor-ATV-Scooter-/261566180629?pt=Motorcycles_Parts_Accessories&hash=item3ce68f2d15&vxp=mtr

[Weldangrind]

I've spotted those on Taobao for even less, but I like my simple analog gauge.

[demidestructo]

I seen your bike earlier and said thats the bike I WANT! So Im designing mine like yours only I will have street tires and mine will be a supermoto. I'm going to do the speedo like yours ,I think that is so cool! i love your bike ! I want to move to your country as well so so beautiful . You did great job on your bike Im putting a cr500 aluminium swingarm on mine to save weight.