Thank You All

[mhenderlong]

I have not been a member very long and haven't posted at all but I wanted tell all that the information from this site is plain amazing. I have an 07 RSTD and have added a few items that this site has made real easy.

 

I have a little problem that I can't trace down. I get a exaust gas ignition on deceleration every once in a while. The bike starts and runs great but when I let go of the clutch on a down shift it poofs once and that is it. Annoying more than anything. Anybody have a thought? My guess is that the AIS valve is not closing or is a little sticky. Please don't suggest to bypass the AIS as I do care about the environment.

 

I also lost my full time job last August but have been blessed to work contract jobs so I am doing well. My next job will take a year to complete and it is in Texas. Won't be able to take the scoot so I am heading out for one last adventure until I have to go.

 

Agian Thanks to all

[gibvel]

Have you synced the carbs? Does it have stock pipes?

 

Also, check the caps on the nipples on the carb boots for cracks. There should be one cap on each side of the engine.

[mhenderlong]

History of problem:

Took to dealer because of a lot of backfire fall of 09. Brought it home and the throttle play was way over 3/4" and the throttle handle wouldn't return to idle but the engine idled okay. Took the tank off adjusted throttle play to spec. Then every time I parked it in the garge I smelled fuel but no puddle on the ground. Finally had to tear it back apart and found a hose disconnected from the the air box. Decided from then on no more dealer working on bike. Bought dial indicator for carb synch and digital tach. Synched my own carbs since. The backfire showed up last year when returning from Charahulla Parkway so I synched carbs again, checked for vacuum leak and evrything looks great.

[bongobobny]

Could be exhaust leak...

 

BTW Welcome aboard, we are a friendly bunch!

[MikeWa]

Of course trying a carb sync is first. But the ais valves are easy to take apart and clean. Also check the vacuum hoses going to the valves.

Mike

[V7Goose]

Almost 0% chance that the AIS valves are bad in any way - don't waste your time chasing those.

 

88.7% chance the vacuum nipple caps have gotten old an are leaking, or maybe one of the two vacuum lines on the other nipples have gotten cut by taking them off with pliers (happens a lot). To check the caps, you have to take them off and bend them hard - any signs of cracking at all means they are bad.

 

Check for vacuum leaks first, then exhaust leaks around each header and at the Y joints.

Goose