Yamaha 100A User Manual (English)

Other manuals for Yamaha 100A

Questions and Answers:

S
sarah40Jul 27, 2025
Why does my Yamaha 100A engine idle irregularly or stall?
- H
  Heather AlexanderJul 27, 2025
  If your Yamaha Outboard Motor engine idles irregularly or stalls, several factors could be responsible: * Inspect the spark plug(s). Clean or replace with the recommended type if fouled or incorrect. * Check the fuel system for any pinches or kinks in the fuel line or other obstructions. * Ensure the fuel is clean and fresh. If contaminated or stale, replace it. * Clean or replace the fuel filter if clogged. Additionally, ensure that the air vent screw on the fuel tank is open, and the choke knob is in the home position. The motor angle should also be in a normal operating position, and the fuel joint connection should be correctly connected. If you have checked these and it still doesn't work, there may be a problem with ignition parts, requiring service by a Yamaha dealer.
M
Mr. Eugene Goodwin MDAug 11, 2025
How to fix a Yamaha 100A Outboard Motor when the starter will not operate?
- A
  alopezAug 11, 2025
  If the Yamaha Outboard Motor starter won't operate, here's what to check: * The battery condition. If weak or low, use a battery with the recommended capacity. * Battery connections. Tighten any loose cables and clean corroded terminals. * The fuse for the electric start circuit. If blown, find the cause of the overload and repair it. Replace the fuse with one of the correct amperage. If these steps don't resolve the issue, the starter components may be faulty, requiring service by a Yamaha dealer. Also, ensure the engine stop switch lanyard is attached and the shift lever is in neutral.
S
Stephen WagnerAug 15, 2025
What to do if Yamaha 100A Outboard Motor engine will not start (Starter operates)?
- E
  Eric LaneAug 15, 2025
  If your Yamaha Outboard Motor engine will not start but the starter operates, consider the following possibilities: * Ensure the fuel tank is filled with clean, fresh fuel. * Clean or replace the fuel filter if it's clogged. * Inspect the spark plug(s). Clean or replace with the recommended type if fouled or incorrect. * Check and refit the spark plug cap(s) to make sure they are fitted correctly. * Check the wires for wear or breaks. Tighten all loose connections and replace worn or broken wires. Also, attach the engine stop switch lanyard and shift to neutral. If the problem persists, it might be necessary to have a Yamaha dealer service the fuel pump, ignition parts, or engine inner parts.
M
Melissa ConnerAug 21, 2025
How can I stop my Yamaha 100A from vibrating excessively?
- M
  Michael WilliamsAug 21, 2025
  If your Yamaha Outboard Motor vibrates excessively, here are a few things to inspect: * Check the propeller for any damage and have it repaired or replaced if necessary. * Remove any weeds or other foreign matter tangled on the propeller and clean it. * Tighten any loose motor mounting bolts. If the steering pivot is loose or damaged, it should be tightened or serviced by a Yamaha dealer.