Jonsered 49 SP Manual Manual Download | Manualshive

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Summary of Contents for 49 SP

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Page 2: ...with adjustable oil feed The starter is made up of a recoil unit with a nylon rope and rewind spring Chain pitch 3j 8 or 0 325 inch Drive link gauge 0 058 inch i e thickness 1 47 mm Chain speed 3540 feet per minute 18 mjsec at 8000 rpm with an eight tooth sprocket Engine displacement 3 cu in 49 cc Compression ratio 9 1 Bore X stroke 1 732 X 1 260 inch 44 X 32 mm Fuel tank capacity 1 US pints 0 8 l...

Page 3: ...lled by hand Tighten the two bar nuts securely with the universal wrench supplied Fuel mix The fuel tank capacity is I US pints 0 8 liter The octane rating of the fuel should be about 85 Contact your Jonsereds dealer concerning the grade of oil to be used when preparing the fuel mixture Prepare the fuel mixture in a separate gas can and shake well before filling the tank Make sure the can is free ...

Page 4: ...all the way in then back them up one full turn counter clockwise Caution Do not attempt to twist the needles too hard since this could damage the needles and their seats beyond repair Fine adjustment Start the engine Adjust to correct idle speed by turning the idle screw T until the engine idles as fast as possible without the chain moving There must always be a safe margin between engine idle spe...

Page 5: ...ion For normal setting first turn the adjusting screw clock wise as far as it will go In this position the oil flow is shut off Then back the screw off approximative 111 to 2 turns N tighten the adjusting screw beyond the point of reSiST dnce The oil feed setting should be such that the oil and the fuel tanks run empty at the same time Oil strainer A clogged strainer screen is easily cleaned as fo...

Page 6: ...een the flywheel and the ignition coil core should be 0 012 to inch 0 30 mm I Breaker points 2 Ignition coil 3 Breaker point screw 4 Magneto mounting plate screws 5 Capacitor Recoil starter To replace the starter spring or the nylon rope remove the center screw and lift out the rope drum and return spring assembly Install the starter rope as shown in the figure Fit the spring to the underside of t...

Page 7: ...nsion The chain supplied has a top plate filing angle of 30 wich is suitable fur most types of wood Maintain this angle until _tbe chain cannot be filed back any more Using a file holder makes it easier to obtain the correct angles If the angle index of the file holder is kept parallel with the bar a top plate filing angle of 30 is automati cally obtained By pressing the flat side of the file hold...

Page 8: ...ing lever and a cant hook in your equip ment II Before felling a tree make sure that nobody is wfld ing nearby When shouting a warning remember that it may be drowned by the noise of the saw engine 12 When sawing with the top side of the bar the saw may kick back particularly when starting to cut Cutting should always be done at full throttle This danger is also present if the chain at the top sid...

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