2001 Polaris SLH, Virage PWC Factory Service Manual, Page 150Get this manual
CarburetionExhaust Accelerator Pump Testing
On models equipped with an accelerator pump, verify proper accelerator pump operation use the following procedure: CAUTION: Wear eye protection when performing this procedure123Turn engine offRemove air intake silencerWhile observing pump outlet nozzle in carburetor quickly open throttleA steady stream of fuel should be evident from each carburetor accelerator pump outlet nozzle as the throttle is opened The pump reservoir must be full of fuel before performing this testAfter operating the accelerator pump two or three times the reservoir will be empty and fuel will no longer spray from the nozzle until the engine is started