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2003 1100 v star classic back fires

3440 Views 9 Replies 5 Participants Last post by  damquick1
hey guys ....got a 2003 1100 v star classic ...first bike ever ...it got cobra slip ons for exhaust...it back fires between shifts ....bought it off a buddy of mine who informed himself bout this back fireing with a mechanic and he told him to remove the pollution control ...any one had this problem ?...will it work?...bike only has 29000 km
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Yep...remove the AIS System and you'll be "PoP Free"
what the AIS system consist of as far as parts?.....what do i remove ?
its ok ..thanks buddy ...found the instruction on how to remove ais system http://www.maxairengineering.com/images/1100_AIS_removal.pdf
only thing is would u get that ais removal kit from a yamaha dealer?
no, they do not sell them, at least my dealer doesn't...good old internet research is the best method
Ais

AIS is Air Injection System. They inject a little air into the exhaust to burn off gas. When you change exhaust you get a little more popping. Some popping may be always there. It would be illegal for the dealer to change it.

Here is another source of info, no kit required. They move hoses and install marbles. I have also seen a kit on E Bay.

http://650ccnd.com/ais.htm

Dave
I removed the lines pump and all associated hardware. Pulled the elbows from the heads and filled the holes with a plug kit from the internet. I just like my bike cleaner and leaner. Plugging the lines can lead to the lines rusting inside to out.
AIS is Air Injection System. They inject a little air into the exhaust to burn off gas. When you change exhaust you get a little more popping. Some popping may be always there. It would be illegal for the dealer to change it.

Here is another source of info, no kit required. They move hoses and install marbles. I have also seen a kit on E Bay.

http://650ccnd.com/ais.htm

Dave
That's the site that I'd recommend to any newbies here that own a 650.....great folks there, and can help you with all kinds of mods. That's the one thing I miss moving up to the 950--I don't have as much reason to post there.
I removed the AIS from my old 1100 custom about a year after I bought it new. The main reason is because the AIS had a crack in the tube and leaked out some liquid when the bike was running. I ordered my AIS plugs from nopork.com and back in 2002 they recommended you apply some copper gasket sealant to the AIS plus before you put the plugs in. I can tell you that when I sold the bike last month those plugs were still sealed into the engine. I dunno why no one is telling you to do that now. I'd do it though.
not to change the subject but what's your honest opinion on the Clevver you have installed....does the damn thing actually work?
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