Missing at low rpm

[SpyderRx]

My 2009 RS has been missing and popping at low rpm riding around town or in stop and go traffic. It mainly does it when it is hot outside (above 90). I have replaced Y gaskets already. Have bajaron plugs an wires. It's never died on me but just runs rough. If you kill the engine and try to restart it takes a couple times to start. Sometimes you even have to twist the throttle a little to get it started. Any ideas?

 

[figmotoday]

fuel filter? air filter?

 

[SpyderRx]

fuel filter? air filter?

Air filter looked fine when I replaced the plugs. Doesn't seem to miss or pop at highway speeds.

 

[jtoro1]

Check vacuum hoses left side of bike 2, 3inch hoses

 

[SpyderRx]

Check vacuum hoses left side of bike 2, 3inch hoses

Left side if your sitting on the bike?

 

[jtoro1]

Yes sitting on bike , on left side of throttle body look up vacuum hose on SL there is pictures

 

[SpyderRx]

Checked vacuum lines today and they are fine. Also pulled air box and checked plugs and plug wires to make sure they were right and snapped in correctly. No problem with them either. Any other ideas?

 

[DrewNJ]

Pinch off the line leading to the purge valve and take it for a ride. It's on the right side just behind the panel with the can-am sticker on it.

 

[JKMSPYDER]

Stalling

I had a problem on my ST-S where sometimes it would die after I started it and would run rough. Turned out it was the purge valve that had to be replaced. Now it runs great!

 

[SpyderRx]

I ordered a purge valve and fuel filter. I will replace them and see if that fixes the problem. Right now I guess it is process of elimination.

 

[tommyoneleg]

funny I have same problem, I just live with it but I will try the valve also, thanks

 

[DrewNJ]

Probably easier to do a canisterectomy and be done with it.

 

[jacquesd]

My 2009 RS has been missing and popping at low rpm riding around town or in stop and go traffic. It mainly does it when it is hot outside (above 90). I have replaced Y gaskets already. Have bajaron plugs an wires. It's never died on me but just runs rough. If you kill the engine and try to restart it takes a couple times to start. Sometimes you even have to twist the throttle a little to get it started. Any ideas?

I' ve got a similar problem on my 2008. Replaced and checked everything you did, without succes. Finaly had the fuel injectors cleaned, in my case, it solved the problem.

 

[BajaRon]

Probably easier to do a canisterectomy and be done with it.

Absolutely and highly recommended (IMHO). Eliminates more than just a possible rough running engine. And less expensive than buying a new purge valve.

 

[MikeinGA]

Absolutely and highly recommended (IMHO). Eliminates more than just a possible rough running engine. And less expensive than buying a new purge valve.

I had a problem like that and it turned out to be a map sensor. Below 3500 rpm it hardly ran, above 3500 it ran great. I have a 2011 RS-S SE5. With the SE5 transmission I realy had a hard time pulling out. The dealer found the problem with B.U.D.S. That's IMHO.


Mike

 

[BajaRon]

I had a problem like that and it turned out to be a map sensor. Below 3500 rpm it hardly ran, above 3500 it ran great. I have a 2011 RS-S SE5. With the SE5 transmission I realy had a hard time pulling out. The dealer found the problem with B.U.D.S. That's IMHO.


Mike

Good point. The truth is it could be one of several things and possibly a combination. Personally, I removed my canister and there was nothing wrong with the system, except that it was there and I didn't want it to be.

Hooking up to BUDS might be just the ticket to pinpoint the problem. Sometimes throwing parts at a problem works great. Sometimes not so good.

 

[SpyderRx]

Good point. The truth is it could be one of several things and possibly a combination. Personally, I removed my canister and there was nothing wrong with the system, except that it was there and I didn't want it to be.

Hooking up to BUDS might be just the ticket to pinpoint the problem. Sometimes throwing parts at a problem works great. Sometimes not so good.

I have had it checked at the dealer with buds a couple of times and it hasn't showed anything. So you would definitely do the canisterectomy over replacing the purge valve. Guess I could send the purge valve back. I'm planning on buying a ST soon. Want to see what they do with the 15's first.

 

[tommyoneleg]

I did the canisterectomy it took less the 30min, took the bike out for a ride and it seems to have stop the problem.

 

[MikeinGA]

Good point. The truth is it could be one of several things and possibly a combination. Personally, I removed my canister and there was nothing wrong with the system, except that it was there and I didn't want it to be.

Hooking up to BUDS might be just the ticket to pinpoint the problem. Sometimes throwing parts at a problem works great. Sometimes not so good.

Removing the canster will void your warranty and is againest the law. The canster tank vapor hose should be higher that the gas tank vent and the canster moved to in front of the engine on the trunk wall and that problem is fixed, the raw fuel can't get onto the canster. I can see the Spyder ST, RS models not being made in the future. The V-twin RT are no longer made. That IMHO.

Mike

 

[tommyoneleg]

Removing the canster will void your warranty and is againest the law. The canster tank vapor hose should be higher that the gas tank vent and the canster moved to in front of the engine on the trunk wall and that problem is fixed, the raw fuel can't get onto the canster. I can see the Spyder ST, RS models not being made in the future. The V-twin RT are no longer made. That IMHO.

Mike

Does not matter when you don't have a warranty and removing it is not against the law unless your state requires it. As with motorcycles it is not really needed, can-am just went over board in building this thing in so many ways. Part of the fun of owning a bike is working on it and making it your own so any mods or anything I can do to make the bike lighter or faster I do. Removing this canister has made my bike idle smoother and it stopped missing when idling, of course this is just me and how I love bikes. To each his own I guess :doorag: