1987 Tomos A3-MS Moped

[Russ]

This is my Tomos A3 moped

I was looking on ebay, and I found this moped with 5 mins left and only at £13, and it was only 30 miles from where I live, I thought it was too good to miss, so I put a max bid of £35 and 5 mins later it was mine!

Ebay ad:
cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=180611848891&ssPageName=STRK:MEWNX:IT

So the next day I went down to pick it up, and managed to fit it in the back of my MK4 Escort lol. Got home and after about 3 hours of taking bits of and polishing later, it looked like this:



I tried to get it running but after some investigation, I found that the carb has no float or main jet in it , but i've now managed to track down another carb for it, so should have it up and running soon.

The plan for this is to make it like a racer style moped, hence the removal of mudguard, lights etc.

So I tought to make it more racy looking, this seat could do with some lowering...



Bit high isn't it?

So marked up



cut



and back on



Just got to weld the flat part of the rear seat post back on to finish now.

Cut off old seat post:



Welded on the original bit I cut off, and sprayed on some red oxide:



Seat modification it done now and the new posistion is more comfortable.

Painted shocker springs and engine:



Decided i'm going to run it without the indicators, so I took off the indicator switch and wiring:



Then tidied the wiring loom up:



The speedo is originally mounted in a sort of 'dashboard' type thing, which goes with the headlamp fairing, and since i've taken the fairing off, I thought about another way to mount the speedo.

Original 'dashboard' mounting:



New mounting pod:





I took the engine out this week, as the carb started leaking and the engine was misfiring abit. After I got the engine out, I took it straight to my bedroom and took it apart:



First things I noticed was it had no head gasket or base gasket fitted and the piston was installed the wrong way round



(Should be pointing down at the exhaust port)

Also did abit of port mtaching, as the factory finish was pretty poor




Now it's all back together and cleaned up



Painted the rims black





Made up a 'bob-tail' type mudguard to mount the rear light & reg plate on

Welded on and ground down



Bit of paint



And the end product



And thats all i've done since owning it

[davytelford]

£35 and look at it now thanks for joining up are what are they like to live with

[Russ]

Thanks

They're a nice bike to live with, always starts on first kick, goes well for a 50cc, comes well equip and it's got 12 volt electrics.

[derek]

Thats a real nice bike ;D

[cerberus73]

they are nice wee bikes, had one many years ago when i was 16...i remember my mother putting it through a hedge when she took a go of it. still makes me laugh now. nice work there trimming her down.

[TerraRoot]

any update russ? did the 19mm carb work?

[wrighty]

just goes to show that size isnt everything.

[Russ]

Forgot i had this thread on here

Some of you might of seen on RR the result, for those that haven't it's here.

Basically this is finished now. It's running a 70cc Reed valve kit, 20mm Mikuni carb and a Tecno Circuit pipe, i dunno what's its top speed is now (need to do CBT) but it'll do 30mph on half throttle

How it looks now...



;D

[dungbug]

Does look well Russ, your 'bitzer' project looks interesting too.

[jonw]

Great looking little ped. You must be dead chuffed!

[jyng]

Just stumbled across this thread from google images. i to have a tomos a3 ms and want to do something with it!!! from the sounds of it yours must look good. Only problem i have is i cant see the pictures you posted . tells me to click on the image to show it to me in image shack! that doesnt work.
im aware this is like 3 years old but is the any way i can see the pictures of what you achieved ??

[paulieb]

I remember these bikes being sold in the catalogues.