More Jetting Woes (Important!)
Posted May 03, 2002 - 07:14 PM
Posted May 03, 2002 - 08:44 PM
A little popping on decel is acceptable, but it may go away when you try the YZ needle.
I also think you should try a 40 pilot. At your altitude you don’t have much chance of ending up too lean. If you spend the $12 on the YZ needle you will be glad you did, if you buy this part number: (5JG-14916-E1) and run in the third clip you will probably be even happier.
IMO if you aren’t willing to try the YZ needle then you are better off leaving the jetting stock, with the exception of the smaller pilot, which should make it easier to start/harder to stall.
Hope this helps.
BTW I usually ride at 4k to 5k, and have great success with the PN I posted above in the WR/YZ 426 at clip # 3 with a 40 pilot, 160 main.
Posted May 04, 2002 - 02:34 AM
Posted May 04, 2002 - 11:10 AM
Posted May 05, 2002 - 04:17 AM
but then who ever did?
gets confusing doesn't it.
copy my jetting. if you run a yank pipe it's ok. if you run a vortip it's ok and if you run an open silencer such as WB etc then go up to 155MJ.