jettin please help

[tylers10]

hey guys i live in kelowna bc canada the elevation we ride in is between 2000 and 5000 i have a 98 it is bore to a 366 and the head is shaved 10thow it has aluminum reed spacers with brand new stock reeds and stock exaust with no guts i jetted it a couple of times and it still dosent feel right its jetted at 230's right now stock pilots and the middle clip on the needles any suggestions would be much apprecated

 

thanks

[fastrthnu]

search "plug chop(s)"

[bansheeseat$$]

If you're running stock filter with stock exhaust you are way to rich for that elevation.Try the needles in the second groove from the blunt end and put some 200 mains in it and go from there.Hope this helps you out.

[tylers10]

thanks ill try that i think ive dont that but ill try it again

[dajogejr]

2000 to 5000 feet is a big change. You're gonna have to figure something out.

My advice is if you don't want to mess with anything too much, leave it spot on for 2000...and you're just gonna lose power the higher you go, and the jetting will get richer and richer....and keep some spare plugs.

 

Another thing you could do is install power jets on the carbs. it's a drag racer item, but can also be used to add/remove fuel from the mid to main circuit in extreme temps or elevation changes.

 

It's basically an externally adjustable valve (or jet) that you open to flow more fuel, close for less.

 

You could get your bike jetted spot on for the higher elevation with the power jets closed, then as you descend...open the valves up for more fuel flow....

 

Or you could just get fuel injection...LOL...

 

Seriously...with that much elevation...you could probably shave .020 to .030 off the head and be fine with pump fuel, granted if the jetting is correctly done!!