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26 sie 2023 · Problem: -- Can run all day long at mid 3,000RPM to low 4,000 RPM range with no issues. Engine runs like a champ. -- When going WOT, after 10 to 30 seconds, it will start to lose power - and it loses power rather quickly. -- If I back off to a lower RPM range, all is fine.
How To Maintain Your Lower Unit. Change Your Own Oil. Check Your Oil Level. You can absolutely do it yourself, but you don’t have to. If you’d rather leave it to your Yamaha Marine dealer, they will be happy to take care of it for you in their specially trained and properly equipped service department.
4 lip 2007 · It could be the VST filter, could be the high pressure fuel pump, the low pressure fuel pump, the hi or low pressure fuel filters, a fuel check valve (only on Yamaha's), the fuel water separator, the anti-siphon valve, the fuel tank pickup tube, etc. Running the engine on a separate tank, hooking it up at various locations on the fuel system ...
12 wrz 2022 · Clearly the 2 stroke oil is leaking and bleeding down past something in the oil injection pump. There is no oil leaking from the top remote tank cap, oil pump, or lines themselves, as I cleaned the entire inside bottom of the engine bay and it is still clean, nothing on the bottom of the cowl.
5 sie 2008 · Yamaha & Suzuki Outboards. My yami 115 4 stroke has loss top end power and sounds bogged down. From what I have read could be Sreen in VST tank. Has anyone ever proformed this task...
4 cze 2023 · Disconnect the battery and remove the outboard motor from the boat. Drain the oil from the lower unit. Store the used oil in a proper container for recycling. Remove the propeller and the bolts holding the lower unit housing together. Separate the housing and inspect the seals for damage or wear.
Without a properly-functioning lower unit, you will experience many common issues, such as engine bogs, lower overall RPMs, or even a failing outboard – all of which are catastrophic out on the water. Luckily, your lower unit only needs simple, regular maintenance to keep it in top condition.