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K4S 4-stroke

TKM K4S

The world-leading TKM 4-stroke engine was designed specifically for kart racing. This great design gives it the power, low weight and compactness of a 2-stroke, with the long life, low noise and reliability of a 4-stroke. 

Designed as a performance kart engine rather than a generator or motorcycle based unit. It is a true racing engine which gives many hours of trouble-free running. The TKM team developed the engine from idea to reality using some of the world’s most advanced technical know-how. F1 design and engineering has been blended with Tal-Ko’s 50+ years of expertise and computer operated machinery. 

The engine is easy to install and use. And with every engine machined to extremely close tolerances and sealed at the factory, performance equality is assured. 

The engine can be supplied in both Junior or Senior specification which is simply achieved by inserting a carb air inlet restrictor into bore of carb which can be carried out in minutes by the driver. Starting is carried out using a hand-held electric powered starter motor, a bit like F1. An automatic centrifugal clutch makes driving easy. Simply press the throttle and go. 

Installation
You don’t have to buy a new kart to go TKM 4-stroke racing. The TKM 4-stroke will fit onto just about any kart – 2-stroke or even Pro-Kart. It has been designed to fit as a complete package including radiator. And to make life easy there are exhaust variations and engine mounts to suit every fitting need. 

Servicing
There’s really only one job to worry about – changing the oil on a regular basis. And that only takes a matter of minutes. Aside from that the engine just runs and runs with virtually no need for tuning, servicing, specialist skills or cost. Your running costs for a year may well be just a few pounds on oil and a few consumable sundries like sprockets and clutch parts. A major service is needed every 50 to 100 hours and is carried out by the Tal-Ko factory in the UK or the nominated dealers in other countries. 

Performance
The engine is a full race unit designed to give its power over a really broad rev range. As soon as you press the throttle you’ll feel the pull of the strong torque curve band. And it just keeps on going. The engine is easy to drive and with no holes in the power delivery, so ideal for novices and experts alike. 

Take a step into the future with K4S. 

Specification at a glance 

Capacity

 

200cc

Max Power

 

Senior 20.5BHP - Junior 17BHP

Torque

 

Wide power band from 4-11,500rpm

Max Revs

 

11,950rpm Max

Valves

 

Two

Camshaft

 

Overhead

Carburettor

 

Dellorto 28mm

Ignition

 

PVL digital with built in soft rev limiter

Cooling

 

Water with integral pump and standard engine mounted radiator
Larger brake side mounted Enduro radiator option available for hot climates and long races

Drive

 

Centrifugal clutch with separate sprocket

Exhaust

 

TKM 4-stroke

Starter

 

Hand held Remote electric like F1

Weight

 

13.5kg engine only
22kg complete with all components, oil & water

Installation

 

Ultra easy fit onto any 2-stroke or Pro-kart

Conformity

 

All engines sealed. Rebuilds only by Tal-Ko Racing in UK

Servicing

 

Free first 10 hr inspection then at least 50 -100 hours before a major rebuild.

Classes

 

Junior & Senior. Air restrictor makes the change in minutes

TKM K4S Parts & Drawings Price List

TKM Engine Price List

TKM K4S Installation & Running Guide

TKM K4S Engines Online Shop