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