2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 111Get this manual

2003 Polaris MSX 140 Personal Watercraft Service Manual, Page 111

Fuel Injection System FFIt DiagnosticsStatic TestsContinued Testing Electric Fuel Pump NOTE: Do not start the engine during
RUNNING TEST WILL STOP IN SECONDS PRESS ANY KEY TO STOP CYLINDER DROP TEST S Extract all EMM service codes and make the repairs
indicated before using the Cylinder Drop Test This test will help you diagnose an engine problem when the systems or cylinders
are not knownS This test allows you to drop any cylinder as you run the engine at the RPM where the problem existsS If the
problem is power loss, engine RPM will not change when the cylinder is droppedIf the prob- FFIt DiagnosticsCYLINDER DROP
TEST NOTE: Install the pin power harness back into the EMM prior to performing the cylinder drop testThe Cylinder Drop Test
is highly useful diagnostic toolIt allows you to momentarily shut off fuel to any one cylinder while the engine is runningTo
use the Cylinder Drop Test, you must run the engine with the laptop attachedRemove the spark checker, and install all spark