1976 Evinrude 200 HP Outboards Service Manual, PN 5199, Page 19Get this manual
TROUBLE CHECK CHART TROUBLE POSSIBLE CAUSE AFUEL SYSTEMSee Section Fuel line improperly connected Slow speed orifice blocked (or plug screw loose) Engine not primed Manual choke in "OFF" position Speed control not advanced (throttle closed) (warm up lever not in start position) Engine flooded Old fuel Clogged fuel filter screens Choke not operating Choke link broken or disconnected Fuel system faulty BIGNITION SYSTEMSee Section Timing, or linkage improperly adjusted Sheared flywheel key Loose wiring Ignition system faulty (key switch) Gear shift not in neutral Defective neutral start switch CELECTRICAL SYSTEMSee Section Wrong rotation (Bosch starter) brushes in wrong Starter circuit faulty 20 ampere fuse open or fuse holder damaged Cranking speed too slow Key switch, wiring, or bad power pack APOWER HEADSee Section Carburetors and timer base not synchronized Throttle control lever (won't advance) Air leak at manifold gasketswarped manifold (backfires) Broken leaf valves (backfires) Excessive carbon on pistons and cylinder head Stuck piston rings, or scored cylinder or piston BCARBURETORSee Section Old fueltoo much lubricant (dirt in carburetor) Spark advance stop screw loose Choke not operating properly Float valves and seats worn or stuck Incorrect carburetor float setting Incorrect orifice plugs Altitude horsepower loss CFUEL PUMP AND TANKSee Section Faulty fuel hose (clamps or seals) (kinked) Fuel tank or pump filters' plugged Fuel filters restricted Fuel and vent valves not opening Valves not operating Fuel hose passages restricted Incorrect fuel pumps Diaphragm leaking or damaged Antisiphon valves built in tanks incorrect or faulty DEXHAUST GAS ENTERING CARBURETORSee Section Exhaust cover screws leaking Damaged exhaust housing seals Adapter gaskets leaking Cracked exhaust housing Exhaust adapter to cylinder screws loose or missing