Running air filter or pipe with no jetting - Yamaha Raptor Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 14 (permalink) Old 12-06-2011, 02:26 PM Thread Starter
Senior Member
 
07Special350's Avatar
 
Join Date: Nov 2011
Location: NY
Posts: 383
Running air filter or pipe with no jetting

How much of a power loss do you get when you use an aftermarket pipe or filter with no jetting? Does it run noticeably worse? I wanna throw an air filter in and possibly a pipe. How necessary is jetting the carb after these?

07 Raptor 350 SE Black and Orange
-HMF Competition Exhaust
-Pro Design Pro-Flow Uni Intake (No Lid)
-ITP Holeshots on ITP SS112 Black Wheels
-12/38 Sprocket set-up
-RuKind Reaper Eyes
-LEDs Everywhere
-EMGO Direct Shifter
-Pro Taper Seven-Eights Bars
02 Raptor 660R
-Like it Just Left The Showroom

07Special350 is offline  
Sponsored Links
Advertisement
 
post #2 of 14 (permalink) Old 12-06-2011, 02:50 PM
Site Sponsors
 
KB Motorsports's Avatar
 
Join Date: Aug 2006
Location: Kentucky
Posts: 3,242
Send a message via AIM to KB Motorsports Send a message via MSN to KB Motorsports
You'll notice a slight power difference, but worse you'll decrease the engine life.

www.kbmatv.com





Store Hours
Monday - Friday
100am - 60pm Eastern Time
270-774-1982
Sales@kbmotorsportsonline.com
KB Motorsports is offline  
post #3 of 14 (permalink) Old 12-06-2011, 02:58 PM
Senior Member
 
Bwoodz's Avatar
 
Join Date: Sep 2010
Location: Waverly, Il
Posts: 376
Youll be decreasing the engine life significantly. You'll be burning out your valves very quickly

.:2003 Raptor 660R

  • FMF Exhaust; Big Gun Over-Rev CDI; GYTR Front Bumper; Moose Wide Rear Grab Bar; Dirt Digger Clutch; AC Racing Nerf Bars; Motion Pro Skid Plates; K&N Air Filter with Prefilter; Roll-Design Direct Mount Shifter; 14-40 Gearing; CFM Lowering Kit; Blingstar Victory Bumper
I do all my own stunts
Bwoodz is offline  
post #4 of 14 (permalink) Old 12-06-2011, 03:33 PM Thread Starter
Senior Member
 
07Special350's Avatar
 
Join Date: Nov 2011
Location: NY
Posts: 383
With a normal aftermarket high flow filter, what jets would be recommended?

07 Raptor 350 SE Black and Orange
-HMF Competition Exhaust
-Pro Design Pro-Flow Uni Intake (No Lid)
-ITP Holeshots on ITP SS112 Black Wheels
-12/38 Sprocket set-up
-RuKind Reaper Eyes
-LEDs Everywhere
-EMGO Direct Shifter
-Pro Taper Seven-Eights Bars
02 Raptor 660R
-Like it Just Left The Showroom

07Special350 is offline  
post #5 of 14 (permalink) Old 12-06-2011, 04:58 PM
Senior Member
 
SegKast's Avatar
 
Join Date: Jul 2007
Location: Oly
Posts: 6,985
Essentially what you're doing is running the engine lean. NOT good for it at all. A simple filter swap isn't as bad as a whole new high-flow intake, but it's still not ideal if it really is a big upgrade in air intake. As far as running stock jetting w/ an aftermarket pipe/filter... don't do it, you're cheating yourself out of performance and hurting your bike. If you're gonna spend $300-750 on that setup, do yourself (and your bike) a favor and spend $30-75 and jet your bike properly. Otherwise, you're just wasting your money. Don't neglect your carbs.

No clue on 350 jetting numbers though, sorry.

Get on my level Brother
SegKast is offline  
post #6 of 14 (permalink) Old 12-06-2011, 05:04 PM Thread Starter
Senior Member
 
07Special350's Avatar
 
Join Date: Nov 2011
Location: NY
Posts: 383
Quote:
Originally Posted by SegKast View Post
Essentially what you're doing is running the engine lean. NOT good for it at all. A simple filter swap isn't as bad as a whole new high-flow intake, but it's still not ideal if it really is a big upgrade in air intake. As far as running stock jetting w/ an aftermarket pipe/filter... don't do it, you're cheating yourself out of performance and hurting your bike. If you're gonna spend $300-750 on that setup, do yourself (and your bike) a favor and spend $30-75 and jet your bike properly. Otherwise, you're just wasting your money. Don't neglect your carbs.

No clue on 350 jetting numbers though, sorry.
Thanks, I just was't sure if jetting was needed for a new intake. I hear people running main jets from 150+ but thats with exhaust and intake. I dont know if that would be necessary if I was just swapping the intake system...

07 Raptor 350 SE Black and Orange
-HMF Competition Exhaust
-Pro Design Pro-Flow Uni Intake (No Lid)
-ITP Holeshots on ITP SS112 Black Wheels
-12/38 Sprocket set-up
-RuKind Reaper Eyes
-LEDs Everywhere
-EMGO Direct Shifter
-Pro Taper Seven-Eights Bars
02 Raptor 660R
-Like it Just Left The Showroom

07Special350 is offline  
post #7 of 14 (permalink) Old 12-06-2011, 07:11 PM
Senior Member
 
wwholden's Avatar
 
Join Date: Sep 2011
Location: Dayton, Ohio
Posts: 197
I rode my bike right after I installed my full exhaust. It ran worse than it did when it had the stock pipe. Then I installed a pro flow intake. Still ran like crap. Then I jetted the carb, and then I saw a huge increase in power. But this is a 660 not a 350...

On your jetting question. Have you removed the air box lid? If so then yes you will have to rejet. Not sure on the numbers tho since I dont have a 350. Do note that there are two different numbering systems. Dynojet numbers are not equivalent to other manufactures jets.


2001 Raptor 660R: Cross Country Racing (IXCR)
Sparks X6 Full Exhaust w/ Dynojet 148/150
Pro Flow Intake & GYTR Clutch
Pro Designs Power Shifter
DID X-Ring Chain
13/40 TAG Sprockets
PRM Full Skid Plate & Grab Bar
1.75" Alba Racing Rear Spacers
20" Rear 22" Front XCR Holeshots on Polished ITPs
Pro-Taper SE Raptor Bend Bars w/ ODI Rogue Grips
Acerbis Uniko Vented Handguards
wwholden is offline  
post #8 of 14 (permalink) Old 12-06-2011, 09:23 PM Thread Starter
Senior Member
 
07Special350's Avatar
 
Join Date: Nov 2011
Location: NY
Posts: 383
I haven't bought any aftermarket system yet, so my lid is still on. If I bought a system and still had the lid on would I still have to rejet?

07 Raptor 350 SE Black and Orange
-HMF Competition Exhaust
-Pro Design Pro-Flow Uni Intake (No Lid)
-ITP Holeshots on ITP SS112 Black Wheels
-12/38 Sprocket set-up
-RuKind Reaper Eyes
-LEDs Everywhere
-EMGO Direct Shifter
-Pro Taper Seven-Eights Bars
02 Raptor 660R
-Like it Just Left The Showroom

07Special350 is offline  
post #9 of 14 (permalink) Old 12-06-2011, 09:36 PM
Senior Member
 
rappy'97's Avatar
 
Join Date: Nov 2010
Location: Mid-Michigan
Posts: 7,128
Not with the lid on... I wouldn't.
rappy'97 is offline  
post #10 of 14 (permalink) Old 12-06-2011, 09:39 PM Thread Starter
Senior Member
 
07Special350's Avatar
 
Join Date: Nov 2011
Location: NY
Posts: 383
I'm not even sure if there's any aftermarket systems that I could still run the lid with Looks like i'll be either rejetting or leaving it stock...

07 Raptor 350 SE Black and Orange
-HMF Competition Exhaust
-Pro Design Pro-Flow Uni Intake (No Lid)
-ITP Holeshots on ITP SS112 Black Wheels
-12/38 Sprocket set-up
-RuKind Reaper Eyes
-LEDs Everywhere
-EMGO Direct Shifter
-Pro Taper Seven-Eights Bars
02 Raptor 660R
-Like it Just Left The Showroom

07Special350 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Yamaha Raptor Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
Inactive Reminders By Mished.co.uk and FTP-Anime.com