Technical FAQ

Here you will find explanations to frequently asked technical questions about Tomos or one of our products.

Has your question not been answered here yet? Or can't you find it? Then contact us and we will give you the right information!

Info center Technical FAQ posts

How to Rebuild Your Tomos A35 Engine

Step-by-step Tomos A35 engine rebuild guide covering bearings, seals, crankcase assembly, clutch, kickstart, ignition timing, ATF refill, torque values and final checks....

07-07-2026

Tomos ignition: how it works and how to fix a no-spark problem yourself

Learn how to check a Tomos ignition when your moped has no spark, weak spark or poor starting. Includes spark plug, plug cap, kill switch, CDI, coil, stator and flywheel checks....

02-10-2025

Tutorial: removing Tomos internal bearings

How should I remove an internal bearing from my Tomos moped engine? ...

28-10-2024

Tomos ignition with or without pick-up?

Learn how to recognize a Tomos A35 ignition with pick-up, what the pick-up module does, and how to set the correct pick-up distance....

02-08-2024

Tutorial: Replace Tomos crankshaft bearings

How should I replace the crankshaft bearings on my Tomos? What do I need? In this video, Stijn shows how you can easily do this yourself....

19-07-2024

Tutorial: Rebuild a Tomos A3 / A35 old model front fork

A front fork is an essential part of a moped. In this video, Stijn shows how to overhaul an old model front fork of a Tomos A3 / A35....

19-07-2024

Tutorial: dismantling Tomos cylinder

We very often get the question, I want to remove my cylinder but it doesn't work. How should I loosen the manifold? The studs are stuck, what should I do?...

19-07-2024

Tutorial: Remove a Tomos engine

This is 1-minute how-to. In this episode how to remove a Tomos engine!...

19-07-2024

Tutorial: Tomos A35 engine rebuild with all bearings and seals

We at Tomoshop very often get the question, how should I overhaul my Tomos A35 engine block? That's very difficult, isn't it? What all do I need for that?...

19-07-2024

Tomos A3 / A35 / A52 crankshaft bearing replacement

In this video, Stijn shows you how to split your crankcase to replace the crankshaft bearings....

06-06-2024

Tutorial: replace a light bulb in one minute

In this video, Stijn shows you how to replace a bulb from a square headlamp...

06-06-2024

Tomos change seals

Is your crankshaft retaining ring leaking? In this video, Stijn shows you how to easily change crankshaft retaining rings. ...

29-03-2024

Tutorial: adjusting the jet in a Tomos Dellorto SHA carburettor

Learn how to adjust a Tomos A35 DellOrto SHA carburetor. Find the right jet size, recognize rich and lean mixture symptoms, and tune your Tomos step by step....

29-03-2024

Tutorial: mounting Tomos quick throttle and cables

Do you go faster with a quick throttle lever? How to mount a cable? Which nipple should I use? These are questions we regularly hear....

29-03-2024

Tutorial: Tomos cylinder stud replacement

How should you replace the studs in your crankcase?...

15-03-2024

Tutorial: Replacing Tomos shock absorbers + Video

How should you replace the shock absorbers on a Tomos A3 / A35?...

26-02-2024

Tutorial: Tomos piston replacement

Want to replace your Tomos moped or moped piston because it is broken? ...

19-02-2024

Tutorial: Tomos cylinder removal: problems and tips

In this episode, Stijn gives several tips and tricks of how to remove a cylinder. ...

19-02-2024

Tutorial: Tomos A3 / A35 / A52 clutch segment replacement

How do you replace the clutch segments on a Tomos A3 / A35 / A52?...

08-02-2024

Tutorial: Mounting a buddyseat on a Tomos A3 / A35

In this video, Stijn takes you through the process and shows you how to simply mount your own buddyseat on a Tomos....

01-02-2024

Tutorial: Tomos retrofitting LED angel eye and rectifier (AC > DC)

In this video, Stijn will mount a rectifier together with our beautiful angel eye headlight....

22-01-2024

Tutorial: Tomos A3 / A35 2-speed automatic ATF oil change

In this video, we show you how to change the ATF oil, also known as clutch oil....

16-01-2024

Tutorial: Tomos A35 clutch rebuild / replace

Is your 1st or 2nd gear clutch worn out? In this video, Stijn explains how to replace your clutch. ...

15-01-2024

How do Tomos gears and clutches work

In this video, your host Stijn explains how a Tomos engine works internally....

09-01-2024

Tutorial: connecting Tomos indicators

We get quite a lot of questions about, how should I connect indicators to my Tomos?...

27-12-2023

Tomos with A55 cylinder and Dellorto PHVA carburetor tuning

How can I get more speed with my Tomos with A55 cylinder?...

06-12-2023

Tomos wiring harness

A Tomos wiring harness is a complex network of electrical wires, connectors and switches that run through your moped....

14-11-2023

How does a Tomos 2-stroke engine work!?

A two-stroke engine, also known as a 2-stroke engine, is a type of internal combustion engine that generates its power in two movements of the piston: up and down. ...

14-11-2023

Tutorial: How do I replace a Tomos moped tire?

Learn how to replace the front or rear tire on your Tomos moped, including tools, wheel removal, inner tube replacement, tire fitting and final safety checks....

31-10-2023

Difference Tomos new and old model front fork

Over the years, Tomos has used different front forks, mostly from the manufacturer EBR. We talk about old and new model front forks with these....

23-10-2023

Tutorial: Mounting a reinforcement bar on a Tomos A3 / A35

In this video, Stijn shows you how to easily modify and fit an EBR reinforcement bar to a Tomos A3 / A35 frame!...

17-10-2023

Ultimate Guide to Tomos Moped Tires

Learn how to read Tomos moped tire sizes, DOT codes, Load Index and Speed Index markings, choose the right tire type and maintain your tires safely....

03-10-2023

Info about Tomos sprocket ratios

With the gear ratio, you can very simply influence the traction or top speed of your Tomos, if you have enough power. ...

20-09-2023

Tomos 2-stroke moped oil mixture ratio

How much oil should I mix? Use the calculation tool below to simply calculate your oil or Triboron mixing ratio. ...

08-09-2023

Tomos tuning: which jets types for Tomos are there?

In this video, Stijn explains to you the differences between the available jets, for example for a Dellorto SHA, PHBG, PHVA, Polini CP or even a Bing carburettor....

31-08-2023

Tutorial: Mounting a battery box below a Tomos A35 long buddyseat

We very often get the question, how can I mount a battery box under my long Tomos buddyseat? ...

16-08-2023

Tutorial: How do you mount a 15mm Dellorto SHA carburettor?

Upgrading your Tomos with a larger carburettor? ...

16-08-2023

How much oil should be put in a hydraulic EBR new model front fork?

Hydraulic EBR front forks were used on various Tomos models such as the Tomos Classic, Flexer, Roadie, Quadro but also the Tomos Revival and Streetmate, both for use with a brake anchor plate and brake disc....

08-08-2023

Moped maintenance: Tomos cables and switches

Are you having electrical problems on your Tomos? Is your handlebar switch no longer working properly? In this video you'll find tips & tricks on how to fix it, presented by your Mafketel Stijn!...

17-04-2023

Tutorial: Mounting buddyseat saddle on a Tomos Flexer / Youngst'R / Pack'R

The standard saddle on a Tomos Flexer / Youngst'R / Pack'R is not exactly comfortable, luckily there is a nice solution for that. Tomos has a comfortable saddle for this that can be easily fitted to a round frame with an adapter and minimal modifications....

15-03-2023

Ethanol in E10 fuel, what does it mean for my Tomos?

We get a lot of questions about ethanol in fuel and there is a lot of shouting therefore some clarity on what to fill up....

16-02-2023

How does a Tomos carburetor work?

Starting your moped. You do this with your kickstart, you crank your moped or you might even have an electric start. ...

12-02-2023

Convert YOUR TOMOS to moped in 10 steps

In this video we will explain from A to Z which requirements YOUR TOMOS must meet in order to convert it from 25 km/h moped to 45 km/h moped. ...

05-02-2023

Tightening torques Tomos A35 / A52 / A55 engine block

Find the correct tightening torques for Tomos A35, A52 and A55 engine-block and frame parts, including Nm, kpm and ft-lb values....

31-01-2023

Explanation of difference between Tomos Euro 1 and Euro 2 frames

Tomos mopeds/mopeds are built in different types and versions. In this blog we will look at the Euro 1 and Euro 2 models. The 2 models both have distinctive features and visible differences. It is important that you know which Tomos model belongs to which category. This is because some parts may be ...

23-01-2023

Explaining different spark plugs, resistance, short or long shaft etc.

Showing 1 to 50 of 52 (2 Pages)