Magnum XL .25ARNV Operating Instructions Manual Download | Manualshive

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PARTS BREAK

DOWN

XL .28A

RNV

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Summary of Contents for XL .25ARNV

Page 1: ...ect size wrench to tighten the propeller nuts Do not use pliers N Inspect the spinner propeller and propeller nut on a regular basis looking for any signs of nicks cracks or loosening N To stop the engine adjust the throttle linkage to completely close the throttle barrel and therefore cut off the air supply You can also pinch the fuel line to stop the engine but only if it is safely accessible Do...

Page 2: ...tor Use a screwdriver to carefully tighten both screws securely There is no need to overtighten the screws Note Do not overtighten the retaining screws The screws only need to be tightened enough to keep the carburetor from moving in the crankcase Overtightening the screws can cause severe damage to the base of the carburetor q Rear Needle Valve Installation The rear needle valve assembly is held ...

Page 3: ...ower the airplane sufficiently Using a propeller that is too small will cause the engine to run at too high an R P M Using a propeller that is too large will cause the engine run at too low an R P M and cause it to lug down too much In both instances this can lead to premature engine wear and eventual failure Propeller Size Recommendations q Glow Plug Recommendation Glow plugs can also make a big ...

Page 4: ...balhobby com MAINTENANCE q Avoid running the engine under dusty conditions If you are in a dusty environment we suggest using an air filter over the carburetor q At the end of every flying day purge the engine of fuel by disconnect ing the fuel line and allowing the engine to run dry of fuel q Use a high quality after run oil in the engine after you have purged the engine of fuel Inject the oil in...

Page 5: ...ce for heating the glow plug It uses a Sub C Nicad includes a meter to determine the quality of your glow plug and it also includes a charger to recharge the battery It s a very economical product to purchase and can be used with any engine that uses a glow plug q Motor Mount Hayes Motor Mount AL 25 011 The Hayes motor mount is a glass filled type that mounts to a ply wood firewall in the model It...

Page 6: ...Reset high speed needle valve to leaner setting D Idle mixture set too lean D Set idle mixture richer E Idle mixture set too rich E Set idle mixture leaner F Air leak in fuel system and or engine F Replace fuel lines and or tighten all engine bolts G Propeller too large G Replace with one size smaller propeller 5 Throttle barrel does not A Throttle servo linkage out of adjustment A Adjust throttle...

Page 7: ...PARTS BREAK DOWN XL 28ARNV ...

Page 8: ...23 Cylinder Head Bolt Set 1 28134 Backplate Bolt Set 1 28203 Piston and Sleeve Set 1 28204 Wrist Pin 1 28210 Crankshaft 1 28213 Wrist Pin Assembly 1 28238 Drive Washer and Collet 1 28601 Muffler Assembly Complete 1 28616 Muffler Axial Bolt 1 28810 Idle Mixture Screw w O Ring 1 32609 Muffler Gasket Set 2 1 32814 Carburetor Barrel Spring 1 32832 Idle Stop Screw Set 1 32837 Rotor Bolt Set 1 40123 Rea...

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