So I just got my raptor petcock in the mail today but it's missing the nipple.  Can I just buy the nipple at Autozone or can I just remove it from the old petcock?  I'm also going to take the carb off and try the white spacer mod but only want to try half.  What were the sizes of the washers, I think I read #2 but is that all the info I need for them?    I know the mod is for backfiring while riding but will it also cure a backfire at shutdown?  The backfires while riding don't bother me but the one on shutdown is embarassing.
Thanks
Joshua

Joshua wrote on 05/30/09 at 14:53:54:

I just got done with the very same mod less than an hour ago!  I didn't actually take the carb off, but must admit it would make it easier to access.  Although without a second set of hands, it does work better to have it in the bike when you're breaking the cover screws loose for the first time.  I had to use the old fashioned impact driver:  Whack the screwdriver with a hammer, while applying pressure to unscrew.  Otherwise they probably woulda just stripped the heads out.
I used #3 washers, and they fit perfectly.  I don't know if #2 would be big enough to fit over the top of the needle rod, and I've read on here that #4's have to be filed down on the o.d. to fit into the opening.

Just my 2 cents, take it for what it's worth, and good luck wrenching!

Edit: I used 3 washers, about 1/2 the white spacer, but as my exhaust is tore apart, I haven't had a chance to see how it worked.

Joshua wrote on 05/30/09 at 20:14:28:


Seller wasn't flightsimshop or kwikbay was it?

unless it was denoted as missing in the listing, I think you have a case of him selling a defective part.

reread the listing very carefully to see if you missed it or it was in fine print.

send an email to him and complain.  try to resolve the issue between you two.

do not give him feedback untill you're satisfied.

If not give a neg feedback, sometimes that will wake them up.

Joshua wrote on 05/30/09 at 14:53:54:


Josh,

I'll bet you've got the wrong part number.

What you need is Yamaha P/N: 5LP-24500-01-00

I ordered one from a local dealer over the phone.  They messed up the part number and when I went to pick it up, I was dismayed to find it did not have a lever (nipple) on it.  It just had a square stud sticking out that you could turn using a 7mm open-end wrench.

They had given me a petcock with Yamaha P/N: 5KM-24500-01-00 (emphasis added by me).

I wonder if this is the petcock they sent you?  As you can see, the part numbers are very similar.

I hope you got it cleared up!

Though my LS is an '05 and I am not having any trouble with the stock OEM petc0ck, I am tempted to order one of the Raptor c0cks from local Yami Dealership and try it out ...
Thanks for posting part #!

 I just ordered the Raptor for myself. However I'm concerned with using a screw to block the vac tube on the carb. I really don't want to damage it just in case . .  But I also understand a rubber plug wouldn't be as tight and could deteriorate. Anyone have any other ideas?
 Although I suppose nothing goes INTO the vac port on the carb since the tube fits around the outside?

They make plugs that are meant for vac and gas lines. They are SUPER tight yet don't stretch and crack that much at all. Then if your worried about air leak you can glue it on.