All Things Moto! Web Forums

Go Back   All Things Moto! Web Forums > Dirt Bike - ATV - Suspension Forums > 4-Stroke Dirt Bike Bike Forums > 4-Stroke Dirt Bikes - Yamaha

     
Reply
 
LinkBack Thread Tools
  #1  
Old 07-27-2011, 11:47 AM
Beginner Class
 
Join Date: Jun 2011
Last Online: 08-17-2011 05:36 PM
Location: Southern California
Posts: 10
Default What size pilot and main jets for rejetting 07 TTR 50?

What size main and pilot jets should I purchase for rejetting my 2007 TTR50? Should I change both the main and the pilot? It runs very lean (stock) here @ 3900 ft above sea level. We live in the Mojave Desert. Anyone experienced in rejetting this bike?
Reply With Quote
  #2  
Old 07-28-2011, 10:08 PM
qkenuf4u's Avatar
Novice Class
 
Join Date: Jan 2011
Last Online: 12-05-2012 09:31 PM
Location: SUNNY WARM BIKE RIDING LAKE HAVASU !!!!
Posts: 93
Default

at 3900ft its gonna be RICH( to much gas ) so you will need to re-adjust all 3 circuits on the carb

PILOT
NEEDLE
MAIN

all will need to go leaner (less fuel)
Reply With Quote
  #3  
Old 07-28-2011, 10:30 PM
Beginner Class
 
Join Date: Jun 2011
Last Online: 08-17-2011 05:36 PM
Location: Southern California
Posts: 10
Default air fuel screw adjustment

Thanks ,too rich... ok. Tell me, while Im at it, why do you think Im not getting any response at all from my air/mixture screw at a slow idle speed?
Reply With Quote
  #4  
Old 08-01-2011, 12:09 AM
qkenuf4u's Avatar
Novice Class
 
Join Date: Jan 2011
Last Online: 12-05-2012 09:31 PM
Location: SUNNY WARM BIKE RIDING LAKE HAVASU !!!!
Posts: 93
Default

Quote:
Originally Posted by TrailRider2 View Post
Thanks ,too rich... ok. Tell me, while Im at it, why do you think Im not getting any response at all from my air/mixture screw at a slow idle speed?
in your case its a FUEL SCREW .. turning it out ADDS fuel, turning it in STOPS fuel....(not a 100% stoppage) since the pilots to big the screws not gonna help cause its still flowing to much fuel even when closed...
Reply With Quote
Sponsored Ads
Reply

  All Things Moto! Web Forums > Dirt Bike - ATV - Suspension Forums > 4-Stroke Dirt Bike Bike Forums > 4-Stroke Dirt Bikes - Yamaha


Bookmarks

Thread Tools


Similar Threads for: What size pilot and main jets for rejetting 07 TTR 50?
Thread Thread Starter Forum Replies Last Post
Main jet size for unrestricted LT-A50 MickeyFry ATV/UTV - Suzuki 4 08-30-2010 06:25 AM
on jet sizes for a keihin carb, is going from 165 main to a 168 one jet size or 3? bigguns30 General Discussion 4 07-15-2004 07:01 AM
How To: Daddog Changing the Pilot or Main Jet Woody_393 ATV/UTV - Yamaha 1 05-22-2004 04:20 AM
2002 XR100 main jet / pilot part numbers? Jackal 4-Stroke Dirt Bikes - Honda 4 02-17-2004 02:03 PM
2001 CR 250 Main Jet Size? maxchester 2-Stroke Dirt Bikes - Honda 2 01-08-2004 02:02 PM


All times are GMT -6. The time now is 12:30 PM.

Portal Forums Photo Gallery Popular Tags

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright ©2002-2014, JDub Consulting, Inc. All Right Reserved.