USER MANUAL „W“ ENGINES
Contents
1. M 12 Nuts 50 Spark plug 18 file C Temp WEngineManaul htm 4 of 7 4 15 2006 09 25 37 FUEL WORKING TEMPERATURE The engine W200 was designed to work at certain working temperatures please carefully adhere to the following Temperatures that must not be exceeded when cruising or when the engine is at a fixed rom for a long period of time Exhaust gas temperature 550 C Temperature under the spark plug 170 C Temperatures that must not be exceeded when taking off and when all the power is required of the engine Exhaust gas temperature 580 C Temperature under the spark plug 200 C WARNING The engine must NEVER at any time or under any conditions exceed 580 C exhaust gas temperature EGT 200 C temperature under the spark plug CHT It is therefore necessary to use a tool to read these temperatures in order to protect the engine and above all ensure the safety of yourself and others We also inform you that high exhaust gas temperatures in many cases are symptom of poor carburation While high temperatures under the spark plug are due to poor heat dissipation of the engine caused by high external temperatures or excessive propeller diameters which cause poor air flow over the engine file C Temp WEngineManaul htm 5 of 7 4 15 2006 09 25 37 FUEL MRSE red white battery yellow white regulator red white yellow white charge AC file C Temp WEngineM2. FUEL USER MANUAL W ENGINES TECHNICAL SPECIFICATIONS W 100 W 130 W 200 The Walker jet engine is designed to function with a GASOLINE OIL mixture We recommend using full synthetic based oils During the running in stage use an oil percentage of 3 and then 2 once this stage has been completed The gasoline must have an octane number taht is not lower than 95 in order not to run into pre ignition phenomena Carefully mix the gasoline with the oil in a suitable can It is advisable once they have been mixed to use the mixture within a month Do not use the vegetable or animal oil DO NOT MIX DIFFERENT TYPES OF OIL TOGETHER CARBURETOR The Walbro 37 carburetor if used correctly provides excellent performance requiring few tuning interventions In any case changes in climatic and height conditions can affect functioning file C Temp WEngineManaul htm 1 of 7 4 15 2006 09 25 37 FUEL The carburetor is adjusted during the testing phase with a standard setting Srew H affects the entire range of use of the engine From completely tightened loosen by 1 turns or 3600 Screw L only has an effect at a low engine speed From completely tightened loosen by 3 4 of a turn or 270 The carburetor is provided with a depression pump to remove the fuel from the tank The gap between the two must not exceed 50 60cm The same applies to the tube which must not exceed 50 60cm It is advisable to
3. THE DOWN During Running the belt is subjected to traction and wear and as a result lengthening occurs which could lead to sliding on the pulleys with a subsequent decrease in the general engine performance To correct the tension with a torque wrench loosen screw M8 on the foot of the engine which fastens the pulley can turn screw M12 anti clockwise using a force of 1 8 kgm and then re tighten screw M8 INTERVENTIONS TO BE CARRIED OUT EVERY Clean the carburetor filter Clean the petrol filter Check the belt tension and condition mponents ENGINE SWITCHED OFF AND COOLED 20 HOURS Lubricate the ball joint on the catalytic converter INTERVENTIONS TO BE CARRIED OUT EVERY 60 HOURS Replace the engine and exhaust pipe silent blocks Replace the transmission belt Check the condition of the rubber induction ma nifold Replace the exhaust pipe sound absorbent material Check the distance of the spark plug electrodes if is greater than 0 9mm replace the spark plug Rubber components i e transmission belt silent blocks induction manifold depression tube may become damaged by atmospheric agents therefore their duration over time may be different to that shown The condition must therefore be checked and possible replacement may be necessary before the established time Description Torque Nm Head nut 22 M 6 Screws 12 M 8 Screws 24 Vacuum operated screws 10 M 8 Nuts 25
4. anaul htm 6 of 7 4 15 2006 09 25 37 FUEL REQUESTS FOR REPAIRS OR REPLACEMENT OF COMPONENTS UNDER GUARANTEE WARNING THE GUARANTEE IS VALID FOR 12 MONTHS FROM THE PURCHASE DATE AND EXTENDS TO ALL THE ENGINE COMPONENTS EXCLUDING COMPONENTS SUBJECT TO WEAR AND TEAR NIKASIL FILLING OF THE CYLINDER PISTON MANTLE AND TRANSMISSION BELT THE GUARANTEE IS FORFEITED IF THE ENGINE HAS BEEN TAMPERED WITH OR IF ANY COMPONENTS HAVE NOT BEEN REPLACED WITH ORIIGINAL PARTS OR PARTS THAT HAVE NOT BEEN APPROVED BY US THE COMPONENTS REPLACED UNDER GUARANTEE WILL BE COVERED FOR 12 MONTHS FROM THE DELIVERY DATE FOR ANY REPLACEMENT UNDER GUARANTEE THE FAULTY COMPONENT MUST BE SENT BACK TO WALKERJET FACTORY CARRIAGE PAID BY THE SENDER We would like to thank you for your custom and remind you that the staff at WALKERJET are at your complete disposal for any queries or explanations file C Temp WEngineManaul htm 7 of 7 4 15 2006 09 25 37
5. insert a manual pump between the tank and the carburetor so that the mixture can reach the carburetor before the start up therefore avoiding stressing the starter motor CARBURATION N B In this paragraph the term MIXTURE refers to the combination of the two elements air oil gasoline that takes place inside the carburetor Changes in atmospheric conditions and height affect the functioning of the engine in that they vary the density of the air as a result the air oil gasoline mixture ratio is modified As a general rule we can say that a high altiudes high humidity or high temperatures less air enters and as a result the mixture is richer in oil gasoline so the correct ratio must be re established by tightening the two H L screws On the other hand at low temperatures and low humidity the denser air makes the mixture lower in oil petrol as a result the two H L screws must be loosened WARNING A mixture that is too low in oil gasoline causes considerable damage to the engine which can cause it to break down and or stop suddenly It is recommended to carry out the carburation operations with the ENGINE SWITCHED OFF When the H L screws are tightened loosened carry out variations of 1 8 of a turn each time or 45 larger movements in one turn can cause damage to the engine WARNING file C Temp WEngineManaul htm 2 of 7 4 15 2006 09 25 37 FUEL before starting the e
6. ngine ensure that there are no loosened screws or improperly attached parts Ensure that any people are at a safe distance and never in the range of the propeller Donot start the engine if there are any stones or other objects nearby as they could be picked up and thrown large distances by the force of the propeller Donot start the engine without a propeller Do not start the engine in enclosed spaces as the exhaust gases contain carbon monoxide which is toxic and can cause loss of consciousness and death Before sale the engines undergo pre running in to check the correct functioning and a test confirms all the advertised specifications Once you have acquired the W130 W200 you must pay particular attention during the first hour of functioning in order to maintain all the engine s qualities over time WARNING DURING THE RUNNING IN PHASE KEEP THE EXHAUST GAS TEMPERATURE AND HEAD TEMPERATURE UNDER CONTINUOUS OBSERVATION After having chosen a suitable place above all without any stones or other material that could damage the moving parts start the engine leaving it to warm up for 10 minutes to approx 2 500 rpm Then slowly bring the engine to a higher speed decreasing and increasing the rpm at intervals of 1 minute using various ranges of use but without exceeding 4 500 rpm Continuous and repeated closing opening of the gas valve must be absolutely avoided Approx 20 minutes after switching on the engine
7. switch it off and leave it to cool down completely WARNING When running and also after switching off the engine can cause burns therefore ensure that it has completely cooled down before working on it Carry out a careful visual check for any faults or loosened parts Having checked that everything is working properly and that there are no problems of any kind repeat the previous operations with 20 more minutes of running in following the same instructions This time it is possible to space it out for the entire range of use of the engine bringing it several times to the maximum speed at intervals of 1 minute Once 20 minutes have passed turn the engine off When it has cooled down carry out a complete tightening of all the engine screws Now the engine is ready for the use it was designed for Continue to use 3 5 oil for the next 10 hours Every time that the engine is used routine pre start up checks must be carried out Check that the silent blocks are completely intact file C Temp WEngineManaul htm 3 of 7 4 15 2006 09 25 37 FUEL Check that the exhaust pipe does not have any cracks Ensure that the propeller is not cracked or dented Ensure that there is enough fuel depending on the desired usage duration of the engine not have any abrasions or breaks Check that the electrical system and cables do Check that there are no loosened screws or co BELT TENSION WARNING CARRY OUT THE OPERATIONS WITH
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