How important are RPM's for TPS adjustment?


2 replies to this topic
  • Slow and Jerky

Posted January 16, 2012 - 07:15 AM

#1

I need to adjust the TPS on my son's 03 YZ450. Manual indicates that the engine RPM needs to be 1,900 - 2,100 rpm. At the moment I don't have have an inductive tachometer, so the question is how important is it to be spot on or can I get it close by ear?

Also, since I really should buy a tach, anyone have a recommendation? Since this doesn't really have a traditional plug wire I am little confused as to what I should be looking for.....? :smirk:

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted January 16, 2012 - 07:52 AM

#2

An inductive tach would need to have a trigger wire that could be wound around the high tension source. You would then wind it two or more turns around the coil (spark plug boot) just blow or above the seal.

2000 rpm is a "high normal" idle speed. Higher than a slow idle, but not really a fast idle, either. probably about what you normally idle at in most cases.

  • Slow and Jerky

Posted January 21, 2012 - 04:40 AM

#3

Thanks !





Related Content

Forums
Photo

2016 YZ450 by CaptainKnobby


Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 replies
Forums
Photo

05 yz450f not fast enough by RedeyeYZ


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies
Forums
Photo

Snake pit oct 30th by The Anvil


Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies
Forums
Photo

The "going back to the other darkside" adventure... by Monk


Dirt Bike   Make / Model Specific   KTM   250/350/450/505 SX-F & XC-F (4-Strokes)
  • Hot  113 replies
Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017
 
x

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.