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Hello All,
I'm hoping to tap into the wealth of knowledge here before we haul our misbehaving outboard into the shop. Our lodge has twin Yamaha F115 outboards and one has started to run roughly about 50 hours ago.
Engine Specs: - 2009 Yamaha F115 TXR, 4 Stroke
- 1200 Hours, regularly maintained
Symptoms: - Runs rough, RPMs jump 2-3K, lots of engine shaking
- Only runs rough at certain RPMs (~15K, 25K)
- Runs fine at idle & higher RPMs
Troubleshooting: - Primary Fuel Filter/Water Separator Replaced
- Secondary (In-Line) Fuel Filter Replaced
- Swapped Ignition Coils with other engine
- Checked Spark Plugs & Gap
It is time to take it to the shop to take a look at the injectors and VST Filter? Any thoughts on other items to troubleshoot before that step? All ideas would be appreciated!
Thanks,
Katie
I'm hoping to tap into the wealth of knowledge here before we haul our misbehaving outboard into the shop. Our lodge has twin Yamaha F115 outboards and one has started to run roughly about 50 hours ago.
Engine Specs: - 2009 Yamaha F115 TXR, 4 Stroke
- 1200 Hours, regularly maintained
Symptoms: - Runs rough, RPMs jump 2-3K, lots of engine shaking
- Only runs rough at certain RPMs (~15K, 25K)
- Runs fine at idle & higher RPMs
Troubleshooting: - Primary Fuel Filter/Water Separator Replaced
- Secondary (In-Line) Fuel Filter Replaced
- Swapped Ignition Coils with other engine
- Checked Spark Plugs & Gap
It is time to take it to the shop to take a look at the injectors and VST Filter? Any thoughts on other items to troubleshoot before that step? All ideas would be appreciated!
Thanks,
Katie
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