Same line of thought. I was thinking baffle loose in the muffler.Clogged air filter? Read!
Multi - Please don't do this to your Honda
So a fella who has a couple of Pioneers asked me to look at one. A 2014 Pioneer 700-4 describes the issue as it won't climb the hill at his lake house. Told him I would pick it up and check it out. So today I wasn't busy and decided to see what's going on with it. Fired right up took it 300...hondasxs.com
Brilliant. Cost me $400 for not knowing that. But turns out neither did my Honda dealership that charged me $300 to switch the spark plugs. The rest of it ($100) was getting it towed to the dealer since they have no people to either pick up or deliver on repairs. Not sure why Honda does not put that as a warning somewhere??Is that with your seatbelt on? It has a safety feature to not go over a certain speed if the belts are not worn.