Missing As you runnig down the road

[Aggiehusky140]

Spyder RT Hesitation Running Down The Road
I have a Spyder RT SE5 that I just got a month ago and took it in to the dealer for th 12K checkup and they went all over it new plugs, oil change and all that goes with that. It ran better before they worked on it so I took it back and they then replace the rubber hoses and that helped a lot but when you are running down the road at between 62 and 68 mph it has a hesitation that comes and goes but its there the biggest part of the time. If you get above 75 then you don't notice it. Does anyone that this problem or have a answer for my problem. I love the bike but hate the foot heat and this hesitation.

[cuznjohn]

what year rt.

[one2doo]

Might need new plug wires.

[Aggiehusky140]

2011
what year rt.

[Yazz]

Spyder RT Hesitation Running Down The Road <snip> new plugs,


Might need new plug wires.

+1 Same thing happened with my Spyder.

[BajaRon]

If they just replaced the spark plugs, and not the wires, that is where I would start. In a dark garage with the Tupperware off both sides you may be able to locate arching from wires to some metal component.

It is very common with the stock wires that your Spyder will run worse after changing plugs.

[Chupaca]

:agree: many times when ermoving the plug caps (they get stuck on tight) the person doing it will pull on the wire damaging them. At slower speeds the arcing will be more noticeable. Like Ron said start there...:thumbup:

[PistonBlown]

Also add my support for the plug wires as a likely cause. The general consensus over here is that the standard plug leads almost always play up after the spark plugs are changed.

Bajaron didn't mention it but he does sell the better quality wires and I'd recommend fitting them anyway even if you didn't have this problem at the moment.

[Atv]

I have what appears to be the same problem as you, it runs fine at low speed, no power above 65 mph. My spyder is a 2014 rss, with only 300 miles on it.

[Atv]

Quick question. If it's the wires, why would it not miss in lower gears? I would imagine if it is going to miss, it would be dependent on rpm and not speed, so you should be able to feel it in every gear and not only in higher gears (higher speeds).

[missouriboy]

Quick question. If it's the wires, why would it not miss in lower gears? I would imagine if it is going to miss, it would be dependent on rpm and not speed, so you should be able to feel it in every gear and not only in higher gears (higher speeds).Two possible reasons?

1. Flywheel effect: it may be that it IS missing, but you don't feel it as much because of the higher speed of the engine in relation to vehicle speed.

2. Electrical resistance: if the engine is working less, does that also mean electrical resistance is less, thus allowing sufficient power to cross the plug gaps? If so, it doesn't "miss" until you put more load on the overall system...

Just thinking out loud here... I'm no expert on these matters, nor have I ever played one on TV.

[DrewNJ]

Spyder RT Hesitation Running Down The Road
I have a Spyder RT SE5 that I just got a month ago and took it in to the dealer for th 12K checkup and they went all over it new plugs, oil change and all that goes with that. It ran better before they worked on it so I took it back and they then replace the rubber hoses and that helped a lot but when you are running down the road at between 62 and 68 mph it has a hesitation that comes and goes but its there the biggest part of the time. If you get above 75 then you don't notice it. Does anyone that this problem or have a answer for my problem. I love the bike but hate the foot heat and this hesitation.
Is what your feeling a subtle/slight surge as you cruise down the road at a constant speed/throttle position?

[Aggiehusky140]

I notice the miss more between 62-68 and it after you have run at that speed for afew minutes and some times you don't notice it at all. I'm sure it happens at lower speeds to but it is not as noticable.

[DrewNJ]

Hard to pinpoint for sure without seeing in person. However, it sounds like a normal lean surge at cruise. Figure at cruise the o2 sensor input tries to put your afr as close to a 14.7 as possible for emissions and fuel economy. The o2 sensor responds like an on/off switch going from rich to lean....back and forth. What your likely feeling is that transition. It can be more noticeable if the purge valve is pulsing too.

This is more noticeable on some machines than others and most riders are unaware.

[Aggiehusky140]

I put bajron plug wires on it an it does run a little better but still has the hesitation when it get hot running in the 60's.
Hard to pinpoint for sure without seeing in person. However, it sounds like a normal lean surge at cruise. Figure at cruise the o2 sensor input tries to put your afr as close to a 14.7 as possible for emissions and fuel economy. The o2 sensor responds like an on/off switch going from rich to lean....back and forth. What your likely feeling is that transition. It can be more noticeable if the purge valve is pulsing too.

This is more noticeable on some machines than others and most riders are unaware.

[jwulf74]

Have you checked the 2 little hoses on the "drivers" side of the bike? I think they are vacuum hoses and are about 3 inches long. They tend to dry out and crack. I can't remember the exact symptoms, but what you are experiencing could be it. There are several threads on those hoses here somewhere with pics. If yours are cracked, replacements are easy. Just get a roll of silicone hose in the proper size and cut as needed.