Jetting. My wr. starts great, runs clean at 3500ft. and up with 162.5 main and needle in #2. Idle set very high really helps starting and stalls rarely.Has never flooded and still running stock plug! Other jetting suggestions????????
JETTING
Started by canvet, Jul 07 2001 08:16 AM
6 replies to this topic
Posted 07 July 2001 - 08:16 AM
Jetting. My wr. starts great, runs clean at 3500ft. and up with 162.5 main and needle in #2. Idle set very high really helps starting and stalls rarely.Has never flooded and still running stock plug! Other jetting suggestions????????
Posted 07 July 2001 - 07:40 PM
Jetting is fine on my bike but others I talk to have different jetting. What is the most common?? 2 strokes seem to be easier to jet........
Posted 08 July 2001 - 04:14 PM
If it's running fine don't worry about what other people are running.
Posted 08 July 2001 - 06:06 PM
Yes, I couldn't agree more. If it is working fine leave it alone. I am still trying to get mine perfect.
Posted 09 July 2001 - 06:35 PM
I have done all the mods, my jetting is stone stock! the bike runs grrrreat!
Posted 09 July 2001 - 08:46 PM
if your bike runs ok don't fiddle,if you want your bike to run great then make small changes to jetting one at a time record elevation,temp,humidity,if possible barometric pressure,your jetting is determined by the density altitude,a combination of the above arrived at mathametictly(sic).sea level,59degrees fahareniet,29.99barometer is standard and what your bike is probably jetted for from factory.on a cold day in denver colorado say 0 degrees brometer reading in the 29.99 range even though you are at 5820 ft.above sea level the air density is the same as about 800 ft. above sea level,on a hot day in denver with a barometer reading of 30.99 the air is like at 10 or 11000 ft sea level,so at sea level on a cool dry day you will need to richen jetting,by dropping the neddle clip a notch and see how the bike runs then proceed to main jet if needle can not cure jetting,always go up in jet size first if it blubbers then go smaller or leaner,this is probably why bikes seem to run good on cool dry 60 degree days,anybody that has spent any time riding or racing in the rocky mountains knows how to jet and probably has keihen brass from 130 to 198,how i miss rampart range,i'm a member of the sprucewood 100 mile club,the best dirt bike bar i know of,you guys from colorado is it still open. ,








