Do I need to rejet for higher elevation this summer?

Gbug · May 12th, 2009, 11:43 AM

I'll be spending this summer in Estes Park, CO, which is about 8,000ft, instead of the 400ft I normally live at. Do I need to rejet or adjust the needles to account for the thinner air?

kkim · May 12th, 2009, 11:46 AM

I do believe the owner's manual has something to say about resetting the jetting for high altitudes. I believe it was for anything higher than 5000ft(?), so yes, you would need to go down a size or 2 on the main jets for 8K.

speedgsx98 · May 12th, 2009, 03:28 PM

yes, you'll have to rejet...and your bike will be slower =(. That's the one thing I liked about haveing a turbo car. In high altitudes, I could just crank up the boost to make up for the loss of atmospheric pressure.

Gbug · May 12th, 2009, 05:29 PM

Quote:

Originally Posted by speedgsx98

yes, you'll have to rejet...and your bike will be slower =(. That's the one thing I liked about haveing a turbo car. In high altitudes, I could just crank up the boost to make up for the loss of atmospheric pressure.

Any idea what specific jets I need? Would this be pretty much the same process as installing a DynoJet kit, albeit different sized jets?

May 12th, 2009, 11:43 AM	#1
Gbug ninjette.org member Name: Grant Location: Waco Join Date: Jan 2009 Motorcycle(s): 2008 Ninja 250r Posts: 26	Do I need to rejet for higher elevation this summer? I'll be spending this summer in Estes Park, CO, which is about 8,000ft, instead of the 400ft I normally live at. Do I need to rejet or adjust the needles to account for the thinner air?

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May 12th, 2009, 11:46 AM	#2
kkim Join Date: Nov 2008 Posts: Too much.	I do believe the owner's manual has something to say about resetting the jetting for high altitudes. I believe it was for anything higher than 5000ft(?), so yes, you would need to go down a size or 2 on the main jets for 8K.

May 12th, 2009, 03:28 PM	#3
speedgsx98 ninjette.org member Name: Dave Location: San Diego Join Date: Apr 2009 Motorcycle(s): 250 ninja 2002, 2008 ZX10-R Posts: 149	yes, you'll have to rejet...and your bike will be slower =(. That's the one thing I liked about haveing a turbo car. In high altitudes, I could just crank up the boost to make up for the loss of atmospheric pressure.