What's with this Intermittent loss of 1 cylinder - any ideas?

[RNZN]

During a ride, especially 2 up, after say, 40kms, the engine loses power and runs roughly. The exhaust gets extremely hot and smells. If stopped and left for an hour, the engine then runs OK again. There are no codes displayed. Does anyone have any ideas, much appreciated. Dave.

Meant to add, the engine temp gauge does not show any indication of heating up above the normal. It sounds like 1 cylinder has stopped working and I'm wondering if it is dumping fuel? Great site and thankful of being accepted as a member.

 

[BajaRon]

It would be good to know which Spyder year and model you are riding. If it's a 998 V-Twin, then it could well be spark plug wires failing. A 1330 could be bad coil pack or fouled spark plug.

You're not going to show any heat with the cooling system as the problem is not creating heat in the cylinder. It's your catalytic converter getting blazing hot trying to deal with raw fuel, which is not good and could even be dangerous.

With more information I may be able to give you a better idea of which way to go. But it's not something you want to ignore.

 

[RNZN]

It would be good to know which Spyder year and model you are riding. If it's a 998 V-Twin, then it could well be spark plug wires failing. A 1330 could be bad coil pack or fouled spark plug.

You're not going to show any heat with the cooling system as the problem is not creating heat in the cylinder. It's your catalytic converter getting blazing hot trying to deal with raw fuel, which is not good and could even be dangerous.

With more information I may be able to give you a better idea of which way to go. But it's not something you want to ignore.

Thank you for your input. Sorry didn't give you enough info - 2016 F3. Started a while ago. I think we got some water in the fuel after heavy rain and temp change. Have run approx 4 tanks of fuel since. Took it for a long run yesterday and it's running well with no issue now, after adding a engine clean liquid. Thought I would start cheap initially and take the fuel component out of the equation. We have done 23330 kms so far, trouble free until the sudden intermittent onset of missing on a single cylinder. I'm not sure how limp mode shows itself on the Spyder, but it seems to me that it is not entering this mode. I have had the dealer scan the bike with no issues showing, but saying that, it was running OK when I got it to them, so I guess it will only show a code if it's missing at the time. Not sure where to go to for now. If it was a coil or plug, how would I identify which one?
Once again thx for your help, great site to be on.

 

[TheMariner]

I think we got some water in the fuel after heavy rain and temp change.

Keep a bottle of Methylated Spirits handy. A capfull or 2 in the fuel tank will capture any water (which sinks to the bottom of the tank), allow it to mix with the fuel and pass through the system.