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Message started by Eddie Picasso on 07/24/16 at 16:39:39

Title: Raptor petcock
Post by Eddie Picasso on 07/24/16 at 16:39:39

Also, I have changed the fuel tap to the Raptor type recommended. After running the bike for only a few minutes the filler cap starts to whine. Once opened the intake of air is very obvious. Could this be a problem with lean running and should the filler cap be vented?

Title: Re: Raptor petcock
Post by justin_o_guy2 on 07/24/16 at 17:39:27

th lean running and should the filler cap be vented?

If you open the cap, let it fill the bowl, put cap on, start it,, if it's lean when you start it, it's Lean, no matter what.
IF the tank is not venting right, it's just gonna get leaner.

Keep the idle speed up over 1,000 RPM.
Don't let it idle on the sidestand.

Title: Re: Raptor petcock
Post by verslagen1 on 07/24/16 at 17:46:04

416C7E7A66676D090 wrote:

Yes the cap should be vented if you don't have a carbon cannister on the bottom of the swingarm.

Title: Re: Raptor petcock
Post by Eddie Picasso on 07/25/16 at 15:33:27

Definitely no carbon canister on my bike. Any easy fixes for venting the fuel cap?

Title: Re: Raptor petcock
Post by KennyG on 07/25/16 at 16:14:56

Blow compressed air through the vents.

Title: Re: Raptor petcock
Post by justin_o_guy2 on 07/25/16 at 16:47:34

Where are the vents?

Title: Re: Raptor petcock
Post by KennyG on 07/25/16 at 17:00:40

Justin,

If you go on the bottom side of the gas cap and blow air around the edges you will feel air moving through the tiny vents.

Kenny G

Title: Re: Raptor petcock
Post by justin_o_guy2 on 07/25/16 at 17:21:52

Eddie? Did you hear that? Do I need to forward it to you?

Title: Re: Raptor petcock
Post by Eddie Picasso on 07/26/16 at 13:24:02

I will have a good look at the fuel cap.

Title: Re: Raptor petcock
Post by justin_o_guy2 on 07/26/16 at 16:57:56

Got a compressor?

Title: Re: Raptor petcock
Post by Eddie Picasso on 07/27/16 at 14:18:11

I have access to one. Stupidly sold mine last year because of lackof space/use. Duh!

Title: Re: Raptor petcock
Post by verslagen1 on 07/27/16 at 15:23:12

7A5745415D5C56320 wrote:

Definitely no carbon canister on my bike. Any easy fixes for venting the fuel cap?

I've never torn the cap down to the vents, but you can.

I believe these are the vents...
http://i33.photobucket.com/albums/d64/tjfisher28/7a641b60.jpg

Title: Re: Raptor petcock
Post by Eddie Picasso on 07/28/16 at 12:01:44

Funnily enough I have just done this about an hour ago.

Title: Re: Raptor petcock
Post by stewmills on 07/28/16 at 12:17:10

Pay attention and make sure you get it all back together correctly. It's not rocket surgery, but I did take mine apart a couple of years ago and seem to remember there was something I kept putting back wrong. Can't remember if it affected the tumbler and stopped the key from turning and disengaging the little "teets" so you can put the cap back in the tank hole and lock it...(I think that's was it)...but whatever it was, it was easy to figure out once you realized something was not cooperating.

Title: Re: Raptor petcock
Post by batman on 07/29/16 at 13:38:11

I maybe insane but I believe the cap vents through the key hole,when the cap is on how could air enter the tank any other way?the gasket seals the opening around the tank top,the only way for air to pass is the key hole.true the passage isn't direct but it shouldn't be as the gas would splash out.the hole south of the key socket shown in the pic of verslagen"s post leads to the key lock, but it isn't in direct line with the two small holes in the plastic cap (at 3&9 o'clock)that you remove to get to the lock parts.So.....insert a tooth pick into your key way to open that little flap,then use compressed air.

Title: Re: Raptor petcock
Post by stewmills on 07/29/16 at 13:40:08

I'm with batman...that was always my thought...but I haven't had the time to build a shrink ray and shoot myself so I could walk through those little holes to see where they go.

Title: Re: Raptor petcock
Post by batman on 07/29/16 at 14:00:15

WHAT NO SHRINK RAY!!!! YOU MUST BE TO BUSY RIDING!!!!

Title: Re: Raptor petcock
Post by batman on 07/30/16 at 21:31:12

092436322E2F25410 wrote:

Raptor type or oem raptor from Yamaha? the raptor type sold for cheap on ebay are junk ,you want the real thing.

Title: Re: Raptor petcock
Post by Eddie Picasso on 07/31/16 at 03:57:29

It's the real thing, and it came all the way from the USA! :)