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Old 12-03-2013, 01:59 PM   #10
gitsum   gitsum is offline
 
Join Date: Jun 2010
Location: southern Arizona
Posts: 37
The Honda fuel injection should do a good job of keeping the fuel mixture correct at higher elevations. It sounds like less available oxygen in the thin air in conjunction with a steep grade is just too much for the stock PCX 150's capabilities.

The stock airbox will probably have a small snorkel hose inside that you could either remove or replace with something larger. The EFI should be able to compensate for the extra air flow at lower elevations and it should give you a little more air and power at higher elevation.

You could also tune the variator with some lighter Dr. Pulley slider weighs that should allow the engine to run higher rpm's during WOT throttle acceleration, which could be a big help when bogging down on inclines.
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