Translations:KAVAN AP06A - Instruction Manual/90/en

|PROBLEM |CAUSE |SOLUTION |- |rowspan="7"|1) Engine does not start |A) Failed glow plug |A) Replace glow plug with a new one |- |B) Glow Starter not charged and/or faulty |B) Fully charge glow starter and/or replace |- |C) Engine not being turned over fast enough |C) Use an electric starter to start engine |- |D) Old or contaminated fuel |D) Replace with new fuel |- |E) Engine flooded with too much fuel |E) Remove glow plug and expel fuel from cylinder |- |F) Faulty fuel tank and/or stopper assembly |F) Check and/or replace fuel tank assembly |- |G) Air leak in fuel system and/or engine |G) Replace fuel lines and/or tighten all engine bolts |- |rowspan="4"|2) Engine does not draw fuel |A) Air leak in fuel system and/or engine |A) Replace fuel lines and/or tighten all engine bolts |- |B) High Speed Needle Valve fully closed |B) Reset high speed needle valve to factory setting |- |C) Fuel lines kinked |C) Check and straighten fuel lines |- |D) Defective fuel tank |D) Replace fuel tank |- |rowspan="2"|3) Engine vibrates excessively |A) Propeller out of balance |A) Balance propeller |- |B) Engine and/or motor mount loose |B) Tighten motor mounting bolts |- |rowspan="5"|4) Engine does not transition |A) Failed and/or wrong type glow plug |A) Replace with new recommended glow plug |- |B) Old and/or wrong type fuel |B) Replace with new recommended fuel |- |C) High speed needle valve set too rich |C) Reset high speed needle valve to leaner setting |- |D) Air leak in fuel system and/or engine |D) Replace fuel lines and/or tighten all engine bolts |- |E) Propeller too large |E) Replace with one size smaller propeller |- |rowspan="2"|5) Throttle barrel does not close completely |A) Idle stop screw out of adjustment |A) Turn idle stop screw counter clockwise until barrel closes completely |- |B) Throttle servo linkage out of adjustment |B) Adjust throttle linkage to close throttle barrel completely. |- |rowspan="4"|6) Engine Overheats |A) Engine running too lean |A) Richen high speed needle valve |- |B) Cowl too restrictive |B) Open larger vents in cowling to allow air to exit |- |C) Wrong type of fuel used |C) Use fuel with recommended oil content |- |D) Engine not fully broken-in |D) Allow engine further break-in time |- |rowspan="3"|7) Engine stops abruptly |A) Engine running too lean |A) Richen high speed needle valve |- |B) Piston & Cylinder fit loose |B) Return engine to KAVAN Engines Service Centre |- |C) Compression ratio too high |C) Install one head gasket to lower compression |}