2010 Polaris Sportsman 850 Service Manual, Page 57Get this manual

2010 Polaris Sportsman 850 Service Manual, Page 57

ELECTRONIC FUEL INJECTION ELECTRONIC FUEL INJECTION General Information The Electronic Fuel Injection (EFI) system is complete
operation the ECU has the ability to re-adjust temporarily, providing compensation for changes in overall engine condition
and operating environment, so it will be able to maintain the ideal airfuel ratioDuring certain operating periods such as
cold starts, warm up, acceleration, etc richer airfuel ratio is automatically calculated by the ECU Initial PrimingStarting
Procedure NOTE: The injection system must be purged of all air prior to the initial start up, andor any time the system has
been disassembledIf the EFI system is completely empty of fuel or has been disassembled and repaired: 1Cycle the key switch
from "OFF" to "ON" times, waiting for approximately seconds at each "ON" cycle to allow the fuel pump to cycle and shut downOnce
step is completed, turn the key switch to "START" until the engine starts or seconds has passedIf the engine failed to start,