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FORMULA TKM 4-STROKE
Installation & Running Guide
Introduction
Thank you for buying the TKM K4S 4-stroke engine which offers to karting the combination of high
performance and low weight to bring great racing at a budget cost.
TKM K4S engines are designed and manufactured exclusively for use within kart racing environments on fit
for purpose kart tracks with sealed type smooth surfaces. Any other type of usage is outside the engine’s
use of parameters.
TKM K4S engines should only be installed and operated by those with suitable knowledge and experience,
and we take no responsibility for warranty or other claims where incorrect installation or operation has been
carried out.
As with any high performance engine it is vital that you look after the engine to ensure it is running correctly.
Look after the engine well, run it correctly and you’ll have many hours of trouble-free driving.
Please be very careful to study this guide before you install & run the engine to ensure it is being operated
correctly. Also make sure that you keep within the service periods recommended within the guide. We wish
you great racing & fun.
The TKM K4S engine package is provided to you in a form which is easy to fit to your kart and should take
less than an hour with minimal needs.
Warning: Identifies an instruction, which if not followed may cause injury or endanger the life of the driver,
mechanic or third party or may cause damage to your TKM K4S engine.
General precaution and safety information for engine installation & running
Warning: For the best possible engine operation, compliance with the following advice regarding
installation of engine and equipment is required.
Warning: Modifications to engine or equipment are not allowed.
Warning: Besides the engine-specific installation advice, also take note of information from the respective
chassis manufacturer where available.
Step 1
Engine comes complete with:- Radiator (Standard engine mounted or larger Enduro brake side of chassis
mounted), Carburettor, Noise box, Exhaust, Engine Mount (less clamps), and the Oil Breather Condenser
Pot together with the Petrol Pulse Pump mounted on the seat bracket with pipes.
The standard engine mounts are available in either: 90 x 32mm or 92 x 32mm. They are stamped with 90 or
92 on the bottom face in a recess for identification. Other sizes of mounts are available to special order.
Step 2
Place the engine onto the chassis and ensure that the engine mounts fit correctly. Make sure that the engine
is clear of seat brackets and can slide along the chassis rails a small distance to allow for chain adjustment.
We can supply you with a set of 2 rising blocks with 4 longer bolts to raise engine by 9mm to give extra
