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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
FORMULA TKM 4-STROKE
Installation & Running Guide
1
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Related Manuals for TKM K4S
Summary of Contents for TKM K4S
- Page 1 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.
- Page 2 clearance on side bar mounting if required. Fit your existing mount clamps providing there are suitable and secure lightly with mount clamp bolts. Ensure that the mount clamp bolts are the correct length and neither too long so that they bottom or too short so that there is insufficient thread holding. Step 3 Take the bracket with condenser pot and pulse pump mounted and locate on the rear of the seat.
- Page 3 Pipe 3 (Fuel Supply) goes from the long end of the Y connector to the carburettor in union. Pipe 4 (Fuel Return) goes from the remaining short end of the Y connector (with 70 jet) to the new fuel tank union.
- Page 4 operate. Ensure both wires are neatly secured with cable ties or PVC tape. Remember to clearly mark the On/Off positions. Step 11 A radiator coolant catch tank must be used. It can be fitted in between bottom of radiator and engine near clutch guard using a cable tie on bottom radiator bracket on standard engine mounted radiator or on the bracket designated for it with the larger brake side mounted Enduro Radiator.
- Page 5 Please Read Carefully Before You Use Your Engine 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 engine. General precaution and safety information for engine running Warning: For the best possible engine operation, compliance with the advice regarding installation of engine and equipment is required.
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Page 6: Oil Change
Warning: The engine must only be allowed to be run at peak performance after reaching the specified minimum operating temp of 60C. Operating the engine at too low a temperature could result in piston seizure. Warning: Please follow the instruction of the chassis manufacturer for mounting the water coolant hoses to the chassis if available. -
Page 7: Fuel System
refitting at 16 lbs/ft. Remember to safety lock wire. You should clean around both the sump nut and filter nut before attempting to undo to avoid debris entering engine. Oil Condenser & Breather Assembly Always mount this assembly as high as possible on the rear seat in a near as possible upright position. This assembly allows oil in the engine to breathe via the large bore plastic hose connected to rear of engine whilst running which then collects in the aluminium condenser pot and returns back via a small plastic pipe into the engine. -
Page 8: Starting The Engine For The First Time
Remove this brass nut assembly into which is screwed the main jet. Hold brass nut in a 14mm spanner and unscrew jet using a screw driver and replace with different jet. Then refit assembly into bottom of carb being careful not to overtighten. A variety of carb main jet sizes from 116 –... - Page 9 As the engine warms use the large headed slide screw to set tick over speed. Warning: You must ensure that it is not ticking over too fast or the clutch will start to drag which will cause excessive wear. Once the engine temp gauge shows around 50C switch the engine off and carry out two important checks. Leave for 5 minutes to cool, then with the kart level;...
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Page 10: Spark Plug
Engine Seal Your engine is fitted with a unique TKM seal. This seal must only be removed by Tal-Ko. If at any time the seal is broken you will not be allowed to race and the engine must be returned to Tal-Ko for checking and re- sealing at your cost. -
Page 11: What You Must Not Do
Engine Servicing At 80 -100 hours it is recommended that the engine has a full strip and rebuild. This must be carried out by the Tal-Ko factory. Naturally, you may if you wish, have your engine serviced at more frequent intervals. All services must be carried out by Tal-Ko and will be recorded.
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