As the wax heats up the electrothermal ram needle begins to extend, partially closing the fuel enrichment valve, and reducing the flow of fuel from the float chamber into the venturi. From basic maintenance and troubleshooting to complete overhauls, our Mercury Outboard manuals provide the information you need. As the throttle is opened, the throttle lever rotates and pushes the throttle lever link rod. Models Covered are Mercury - Mariner 9. Turn the flywheel 360° clockwise.
Engine Manual: Information on this page has come from multiple third parties and can not be guaranteed to be accurate. Carefully pry up the valve pad and remove it. Loosen timing belt tensioner and remove tensioner spring. Install cylinder head cover and driven sprockets. Be sure to do your testing under your normal boating conditions and with a good propeller not bent, cracked, or excessively chipped.
The upper electrothermal valve controls fuel flow for carburetors 1 and 2, and the lower valve controls fuel flow for carburetors 3 and 4. If no adjustment is necessary skip to step 11 on. Install tensioner spring and tighten timing belt tensioner. Measure and record in the Measurement Table the thickness of the removed valve pad with a micrometer. The throttle lever link rod then pushes the diaphragm in the dashpot, forcing out the air. Install spark plug cover and flywheel cover. The bore width is 2.
This model has a electric starter and power steering. Description : Download mercury outboard repair manual mercury outboard repair manuals online mercury 115 hp outboard 2 stroke manual mercury 40 hp 4 stroke outboard service manual pdf instantly. If you prefer traditional service manuals Seloc also offers a full line of printed engine repair and maintenence guides. Connect fuel hoses and spark plug leads. Clymer mercury outboard marine service and repair manuals are written with model specific coverage for your mercury outboard marine from basic service and repair to complete overhauls our mercury outboard manuals provide the information you need.
Remove cylinder head cover and spark plugs. Align timing marks on driven cams. Measure and record the intake valve clearance for cylinders 3 and 4. Remove camshaft caps and camshafts. Tighten timing belt tensioner and install tensioner spring.
Remove flywheel cover and spark plug cover. Remove timing belt and driven sprockets. Also, the diaphragm functions as a coasting enrichener during quick deceleration, preventing the engine form stalling. Remove driven sprockets and timing belt. If adjustment of intake or exhaust valve clearance is necessary out of specification follow Changing Pad Thickness below. Measure and record the exhaust valve clearance for cylinders 2 and 4. Align timing marks on driven cams.
This additional air flows into the carburetors and mixes with the fuel from the main jets. Measure and record the exhaust valve clearance for cylinders 1 and 3. V-6 Cylinder, Two Cycle, Direct Injected. Covers Bigfoot Big Foot and Non-Bigfoot models. The iboats can likely help you find a lot of outboard information as it is arranged by subject.
Remove timing belt and driven sprockets. Marine manuals and free pdf instructions find the marine product manual you need at manualsonline free mercury marine outboard motor user manuals manualsonlinecom. Install driven sprockets and timing belt. With carburetor turned upside down, and carb scale seated on inner edge, check float level from top of float to float bowl flange as shown. Even if this information is the same as the original factory specs, boats are sometimes modified. With the outboard in forward gear, adjust idle speed screw to obtain the specified idle speed. Two electrothermal valves are installed on the carburetor assembly.