Yet another rough idle on a 2012 RT

[oberon23]

I have a 2012 rt that started surging and almost stalling. RPMs bounced 1k-2k. It felt like a fouled plug under acceleration, sluggish until the rpms were up. I removed the purge valve line form the evap canister and plugged it with a bolt and tape. I fired it up and it idled pretty smooth for about 10 min but went back to idling rough once it got warmed up. Surging wasnt as bad but still up and down rpms. I am gonna drain/replace the gas but im guessing that gas isnt the culprit or it wouldn't idle smooth at all. I would like to try replacing the vacuum lines next but I can not find any instructions (videos or pics). Can anyone point me to them if they exist? Also, any other input is appreciated.

[CopperSpyder]

try looking at this old thread. https://www.spyderlovers.com/forums/showthread.php?50428-Rough-Idle-Check-Engine-then-Limp-Mode-after-Storage&highlight=vacume+linehttp%3A%2F%2F

Here is a video showing the vac hoses https://www.bing.com/videos/search?q=can+am+spyder+vacuum+lines+replcement+vid eo&view=detail&mid=5CAA7880F1E5CCDDE2665CAA7880F1E5CCDDE266&FORM=VIRE

[SpyderAnn01]

Sounds like vacuum hoses like Copper said. I don’t know if those links suggest using hose from Napa instead of the BRP hoses, but I’d recommend Napa.

[BLUEKNIGHT911]

try looking at this old thread. https://www.spyderlovers.com/forums/showthread.php?50428-Rough-Idle-Check-Engine-then-Limp-Mode-after-Storage&highlight=vacume+linehttp%3A%2F%2F

Here is a video showing the vac hoses https://www.bing.com/videos/search?q=can+am+spyder+vacuum+lines+replcement+vid eo&view=detail&mid=5CAA7880F1E5CCDDE2665CAA7880F1E5CCDDE266&FORM=VIRE

:agree: ……….get hoses made from Silicone, once and done for replacing them ….. Mike :ohyea:

[oberon23]

Thanks for the quick responses. Dumb question but does the air box have to be removed to replace the lines to the throttle body? I switched to fresh gas and checked the map sensor hose (only found one) and it looks brand new, no cracks or discoloration. I just got back from a test ride and it ran ok above ~2500 rpms but still idled pretty rough. Will it damage anything to ride it like this for the weekend or should I park it so it doesn't foul a plug, stall and won't start, etc?

[Grandpot]

The hoses are both on the left side of the throttle body. The one to the rear is easy. The front one can be replaced with the air box installed, but will take a little grunting.

Will it hurt to drive right now. Sorry, but I dropped my crystal ball. Can't help there.

[oberon23]

Thank you. I cant seem to locate the darn thing. Is the left side facing the bike or on it? I feel kinda dumb not locating it. Maybe its easier to define it as the side with the brake or the shifter?

[Grandpot]

Left side as you are sitting in the riding position .
You will need to get down on your knees, look directly at the throttle body and below the air box.