To Next PageTo Next PageWhy is there no spark on both cylinders of my Mercury Outboard Motor?
If your Mercury Outboard Motor experiences no spark or a weak spark on both cylinders, this could be due to several reasons. It could be a faulty trigger, stator, ignition switch box, or a bad ground connection from the switch box to the block. In the case of a weak spark, the stator might be the cause.
Why does my Mercury 15XD Outboard Motor have no spark on one cylinder?
If your Mercury Outboard Motor experiences no spark or a weak spark on only one cylinder, the issue might stem from the ignition switch box or the coil.
What causes a Mercury 15XD Outboard Motor to start hard when hot?
If your Mercury Outboard Motor starts hard when hot, it could be due to a defective switch box or a defective trigger.
What causes my Mercury 15XD Outboard Motor to misfire at low RPM?
If your Mercury Outboard Motor misfires at low RPM but runs smoothly at high RPM, the problem may be a defective harness (or loose connections), a defective switch box, or a defective stator.
Why is the timing fluctuating on my Mercury 15XD?
If the timing on your Mercury Outboard Motor is fluctuating, this could be caused by a shorted trigger wire or a defective ignition switch box.
Why won't the timing advance on my Mercury 15XD Outboard Motor?
If the timing will not advance on your Mercury Outboard Motor, it could be due to a defective switch box.
What to do if my Mercury 15XD occasionally misfires?
If your Mercury Outboard Motor occasionally misfires, consider replacing the standard spark plug with an inductor plug. Also, check for a bad ground connection from the switch box to the block.
General| Exhaust | Through Prop |
|---|---|
| Horsepower | 15 hp |
| Starting System | Manual |
| Shaft Length | 15" (381 mm) |
| Cooling System | Water-cooled |
| Steering | Tiller |
| Fuel Tank | External |
| Recommended Fuel | 87 octane |
| Warranty | 3 years |
Detailed technical specifications for engine models, including horsepower, weight, dimensions, and clearances.
Procedures and schedules for routine maintenance to ensure optimal performance and longevity.
Explains serial number location, conditions affecting performance, and general operational details.
Guides for installing the outboard motor, including safety, mounting, and connections.
Covers ignition system components, description, specifications, testing, and troubleshooting.
Details on batteries, charging systems, starter motor, and related troubleshooting.
Procedures for checking and adjusting engine timing, synchronizing, and idle speed for optimal performance.
Covers carburetor specifications, adjustments, removal, installation, and fuel pump service.
Explains exhaust emissions standards, types of emissions, and controlling emissions.
Provides detailed specifications for engine components like cylinder bore, crankshaft, and pistons.
Step-by-step instructions for removing the powerhead assembly from the drive shaft housing.
Instructions for disassembling pistons and connecting rods, including ring removal and pin lockrings.
Guides for reassembling the powerhead components like crankshaft, bearings, and seals.
Exploded view and parts list for the gear housing and drive shaft components.
Exploded view and parts list for the gear housing and propeller shaft components.
Details on removing and installing the water pump components for cooling.
Procedures for removing and installing the jet drive unit, including necessary hardware.
Details on the throttle and shift linkage for tiller handle models, including removal and installation.
Covers tiller handle assembly, control cables, removal, disassembly, and installation.
Information on side shift linkage, cables, throttle cam, control lever, and horizontal shift shaft.
Exploded view and parts list for the manual starter assembly, including recoil components.
Step-by-step instructions for replacing the starter rope in the rewind starter assembly.
Procedures for disassembling the rewind starter assembly, including spring tension safety.
