I was riding today and during my ride I first notice a drop in power.
So slowed down and pulled over to the side of the road. I waited for a bit then decided to drive it home slowly. I turned the bike on a started gently going down the hill and noticed the sound of a quick repetitive noise, so I immediately stopped a turned of my bike.
I got it towed and the tow guy was an engine enthusiast so he asked to hear my engine turned on briefly. He said it sounded like the Rods were loose in the engine.
So what do you think? A significant loss of power, but the bike still runs and the sounds from the engine rods- How bad is this scenario?
Based on the what you described I'd bet you dropped a valve. My 2015 F3 still ran and started despite a damaged valve.
Sorry to hear about your problems.
I suggest to call MV USA. The number is on their website. It's a well known problem and they may do something for you even if you are out of warranty. Over the past couple of months there have been a few people who had valves drop...
A dropped valve is a valve that has become unbound from the motive force for the valve. The valve, or part of it, is free to float in the cylinder. By floating free in the cylinder the valve, or part of the valve, can cause mild to menacing damage to the cylinder internals and the other parts to which the moving, driven mass is attached.
The engine was probably majorly screwed so I didn't see the point of paying someone to figure out exactly what the problem was instead of moving on immediately. On a cursory note, the guys at the shop said the engine sounded like a rod was bent.
I did keep the engine and intend to tear it apart someday but right now I got other things going on. I know next to nothing about engines so this will be a cool learning experience in the future.
What was the first model year for redesigned heads for the triple? I'm looking at a 2015 Brutale 800. Am I safe from the aforementioned valve problem or should I go one year newer?
As far as I'm aware, this is a 675-only issue. I don't think anyone is sure of that, but anecdotally on these forums it seems only 675 owners have had the issue.
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