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Message started by KennyTwoPumps on 08/13/16 at 06:53:51

Title: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/13/16 at 06:53:51

Hello, I am curious of your guys opinions on what one I should try first. Raptor peacock or carb spacer mod and jets.

The bike fires up and runs well at lower speeds, even opening throttle up while going slow. But when I am going faster than 60 and roll the throttle 3/4 or full it doesn't fire right get to the point where it won't let me accelerate. Thinking not getting the right mixture of fuel and air?
Last night it was cooler out and also left the choke on the first click and it was better almost not doing it at all.
I'm planning on doing both just one first and wanted to know opinions on what one first. It's worth noting I removed the air box and used a straight pvc pipe with a screen for looks but has been that way for months. Can get a picture later.

Title: Re: Peacock or Jets and spacer mod
Post by Ruttly on 08/13/16 at 07:34:04

Raptor petcock first , cheap & easy

Title: Re: Peacock or Jets and spacer mod
Post by Dave on 08/13/16 at 08:15:17

When a bike doesn't run at high throttle settings, it usually indicates a problem with the main circuit, or a sticky slide. Petcock problems can cause some full throttle issues - but they generally don't occur instantly and you normally can get at least a few second of full throttle running if the petcock is to blame.

You can test your stock vacuum petcock to confirm if the problem is being caused by the petcock.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1

Title: Re: Peacock or Jets and spacer mod
Post by cheapnewb24 on 08/13/16 at 08:19:28

Just be aware that genuine oem yamaha raptor petcocks can be rather expensive. On the other hand, cheap chinese knockoffs can be trouble. One known issue is lower fuel flow. Even they may work better than the stock vacuum petcock. Do your homework before your purchase to get the best deal for the quality you want. You probably don't need a genuine raptor. Mine is probably not genuine. I did have a problem with my filter screen falling off into the gas tank, but that was a simple fix.

Title: Re: Peacock or Jets and spacer mod
Post by KennyG on 08/13/16 at 08:45:05

Kenny,

Yamaha Raptor Part #5LP-24500-01

Here is a link to the Genuine Yamaha Part.
http://www.ronayers.com/oemparts/partsearch/yamaha

Putting the petcock on first will make it a whole lot easier to take the tank off when you are ready to work on the carburetor.

Kenny G

Title: Re: Peacock or Jets and spacer mod
Post by norm92de on 08/13/16 at 09:28:07

Raptor rather expensive?

Try the stock petcock. ;)

Title: Re: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/13/16 at 10:07:39

I will probably test and or replace the peacock. Clean the carb. Get an impact driver and take the top off. Ha end up probably doing it all. It use to just hesitate almost just miss once then grab. Thanks for the info

Title: Re: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/13/16 at 10:12:09

Well the guy before me dropped it and the peg has been broken. Last night it decided the rubber decided to let go. Guess I need these welded back or get a set and mod it. Will be getting that this weekend. Then work on the fuel issue

Title: Re: Peacock or Jets and spacer mod
Post by Ruttly on 08/13/16 at 11:35:33

Got my raptor from lancer at a good price
The market place
Hey what a great idea , look here first !

Title: Re: Peacock or Jets and spacer mod
Post by batman on 08/13/16 at 11:42:48

Kenny ,you started with a bike that runs lean from the factory ,then you removed the stock air box? It's now running even leaner if you haven't rejeted ! A screen? That's not an air filter dust and dirt will ruin your motor.

Title: Re: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/13/16 at 11:54:14

I have been meaning to take apart an air filter and use that, but have not done so yet. I will test the vacuum. Not sure what one I will do first. Need pegs now. Also the car needs a tie rod and it feels almost 100 degrees here today. I'll get back in what I have done and what it does for the bike

Title: Re: Peacock or Jets and spacer mod
Post by KennyG on 08/13/16 at 12:14:57

I didn't know that Lancer sold the Raptor Petcock.

This is good to know.

Kenny G

Title: Re: Peacock or Jets and spacer mod
Post by zipidachimp on 08/13/16 at 12:53:10

this is what a phony raptor looks like: http://www.hd-freewallpapers.com/upload/latest-wallpapers/birds-peacock-images-free-download-wallpaper.jpg

Title: Re: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/16/16 at 11:52:10

Well I capped off both ends of the vacuum for the peacock. Ran it on prime and she still acted up. Guess in a little I will have to clean out the carbs and then in a week or two see if Lancer has any of those jet kits. Hoping it's just getting too much air not enough fuel.
It first started just acting up for a second then got progressively worse. I'll clean the carbs. And get some Jets. That would be the best idea correct?

Title: Re: Peacock or Jets and spacer mod
Post by SavageCat on 08/16/16 at 11:59:38

5779727265486B734C69716C6F1C0 wrote:

If Lancer is backlogged, I have an extra jet kit sitting around that I never got around to using...PM me and I'd be happy to send it to you for just shipping costs.

--SavageCat

Title: Re: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/16/16 at 12:44:05

Hahaha I just noticed my auto correct made my title say peacock I stead of petcock. That's why someone put a picture of the bird on here

Title: Re: Peacock or Jets and spacer mod
Post by batman on 08/16/16 at 18:09:55

Kenny,you,ll have to settle on an air cleaner before you rejet otherwise you need to rejet twice.

Title: Re: Peacock or Jets and spacer mod
Post by justin_o_guy2 on 08/16/16 at 23:23:56

4A495C4549461C10280 wrote:

Kenny,you,ll have to settle on an air cleaner before you rejet otherwise you need to rejet twice.

Absolutely..
It was mentioned earlier, you don't have an air filter..
And it's running lean anyway,
Get your intake setup , then jet.
It's possible that will solve it.
Could be a sticky slide.

Title: Re: Peacock or Jets and spacer mod
Post by KennyTwoPumps on 08/17/16 at 04:15:39

Ok I will get that finished up while the Jets come in the mail.

Title: Re: Peacock or Jets and spacer mod
Post by ohiomoto on 08/23/16 at 06:09:05

All this Peacock, err petcock talk has me thinking...

Why not just run the stock petcock in the prime position? Isn't that open just like a raptor? (Without reserve as JOG pointed out in the next post.)

Title: Re: Peacock or Jets and spacer mod
Post by justin_o_guy2 on 08/23/16 at 06:23:34

If the diaphragm is split then it'll suck fuel in, so, gotta plug the vacuum.
On prime there is no reserve. It coughs, you're a pedestrian.

Title: Re: Peacock or Jets and spacer mod
Post by ohiomoto on 08/23/16 at 07:22:45

Right, I realize you don't have a reserve.

I'm thinking more along the lines of trouble shooting. "Replace the petcock first" is recommended quite often. Why not just run on Prime first? If it runs better, you know know the petcock is the problem.

Title: Re: Peacock or Jets and spacer mod
Post by ohiomoto on 08/23/16 at 07:24:51

4D5254534E4978487840525E15270 wrote:

If the diaphragm is split then it'll suck fuel in, so, gotta plug the vacuum.

Wait, suck fuel in where? Are you saying into the vacuum line on the carb?

Title: Re: Peacock or Jets and spacer mod
Post by Dave on 08/23/16 at 07:31:47

If there is a hole in the petcock diaphragm, the fuel can be pulled through the hole and it will flow down the vacuum line. When the bike is running it can make the bike run horrible....when the bike is not running it can flood the crankcase and/or air filter box with gasoline.

Here is the test method for the vacuum petcock.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1251932429/1

Title: Re: Peacock or Jets and spacer mod
Post by ohiomoto on 08/23/16 at 07:53:01

Thanks guys, that clears things up. I knew there had to be a reason it wouldn't be so simple. :)

Title: Re: Peacock or Jets and spacer mod
Post by justin_o_guy2 on 08/23/16 at 13:08:28

It's simple, really, it's just not a good idea.