2005 WR450 throttle stop
Posted October 15, 2004 - 01:42 PM
Posted October 15, 2004 - 05:51 PM
Posted October 15, 2004 - 06:11 PM
Posted October 15, 2004 - 06:47 PM
I just left one of our local dealers and the owner said pretty much all the modifications are the same. I'll be checking mine out this Sunday to see what will be required to change on the California models to get rid of the "Smog pump".
OK, mine's in the garage as we speak and I'm looking at the pictures of the stop mod, but something's amiss (or I'm waaay confused). Anyone else have a 2005 who want to compare notes?
Posted October 15, 2004 - 06:57 PM
My advise is this;
If you are going to leave the bike nearly stock and you are concerned about the quality of air you breethe leave it alone.
If you plan on doing major mods or are going to be racing the machine tear it off but I wouldn't chuck the parts just yet. You never know when the laws might change and you are required to have a 'smog inspection' to get your oHV sticker. I wouldn't loose sleep over it, There are plenty corporate and government polluters the feds don't give a turd about.
Posted October 16, 2004 - 02:47 AM
Posted October 16, 2004 - 02:44 PM
Posted October 18, 2004 - 09:58 AM
Posted October 18, 2004 - 10:55 AM
okay, i'm just a "hick" here in the mid-west, but i will never understand why people think an air pump(smog pump?)makes a bike pollute less. a fuel air mix goes in the motor. power is produced. exhaust leaves the motor. air is mixed with exhaust AFTER it leaves the cylinder. isn't the same amount of "stuff" coming out of the motor? it just gets watered down before a meter is stuck in the exhaust pipe.
No, by adding air into the exhaust, it assist in burning any unburnt fuel, this unburnt fuel is known as HC's or hydrocarbons. Combustion is not 100% complete, if it was, the only thing we'd get is water and carbon dioxide, then we'd be in trouble for emitting too many greenhouse gases! So as long as combustion isnt 100%, they can reduce unwanted pollutants this way. CO is a result of partially burnt fuel, also known as carbon monoxide. This assit in completing the burn cycle to reduce this also. A 4 cycle engine is much more effeceint as far as combustion goes compared to a 2 cycle, but the greenies arent content with the move to 4 strokes, there end goal is to get you off that bike and on foot or in public transit!
Posted October 18, 2004 - 08:27 PM
Posted October 19, 2004 - 07:49 AM
Posted October 19, 2004 - 09:48 PM
Posted February 14, 2005 - 09:39 PM
Posted February 14, 2005 - 11:06 PM
As for the throttle stop. I looked closely at my carb when it was off for re-jet. I had previously removed the screw and cut it the 11MM my local Yama dealer told me to cut. Later I heard TT users say make it 18MM total shank length. When I rotated the carb the original 11MM was not quite enough to fully open the gates. I removed another MM or so until I saw the gates fully open with the screw fully torqued. I did not get a accurate measurement of the screw but I know it is just under the 18MM length others have spoken about. Not worth the $13 savings over a YZ screw!!!
Posted February 15, 2005 - 03:29 AM
Or buy the YZ part 5NL-14591-00-00