Ran one engine, now other is low RPM

[tdonoughue]

what do I do if I mistakenly ran only one engine on my 2001 Yamaha ls 2000. Is it possible water into engine?i only was at no wake speed until I realized. It will now only run at 4k rpm eventually reducing down to 2-3k rpm while the other engine runs fine all the way up to 6000k rpm. What should I do? Might just take it to a boat repair

Hi, @holidayshoreslsboater1 ! Hope you don't mind terribly, but I quoted from your post on the other thread as to not hijack here and to put it over here where there are people with your specific boat who might be able to give more help.

I don't think that you have an issue from running the one engine. You can generally go at no wake speeds on one engine. If you go faster then you have issues. And the issue you have is that you suck water into the engine and when you try to start it you get hydrolocked--had that happened you would know it. The engine would not be running at all.

So, that said, it impresses me as odd that one engine only would be at a lower RPM. First thing I think I might recommend would be a plug change, particularly if they have not been changed in a bit. But I expect others here with the same boat might have more suggestions?

 

[Yamatuf]

Start with changing plugs, double check to ensure each plug is obtaining spark? Clean or replace the plug booties if corroded. Check plug wires next.