Thank you sir! I have a GPS and need to check it that way as well. Seemed kind of sluggish to get moving. The dealer "supposedly" went through the motor prior to purchase but I will check the plugs as well. How do I check this: "I would say that you need to look at the clearance of your impeller to your wear ring". Thanks again.
The clearance is the space between the impeller and the housing of the jet pump (wear ring). Here is a picture of the impeller with the stator vanes and steering nozzle removed.
However, just to get the measurement you need to climb under the boat to the intake grate.
. Yours will not have as much space between the grates. Remove the 4 bolts that hold it in place and then you can measure the clearance . Your boat will have the M2 jet pump the engine size does not factor into the pump. So here are the measurements.
1. Place impeller in wear ring bore and push to one side.
2. Measure clearance between impeller blades and wear ring with a feeler gauge. If clearance is over 0.100 in. (2.54 mm), replace impeller and wear ring.
NOTE: Impeller wear usually accounts for 75% of the wear. Reducing the clearance can improve both top speed and acceleration performance.
COMPONENT SPECIFICATIONS
Wear Ring Bore Diameter 7.273 - 7.283 in. (184.73 - 184.98 mm)
Impeller Outside Diameter 7.225 - 7.235 in. (183.52 - 183.77 mm)
Clearance between Impeller and Wear Ring 0.038 - 0.058 in. (0.96 - 1.47 mm)
3. Inspect leading edges of the impeller for nicks and damage. Leading edges should be sharpened to 0.020 in. (0.51 mm) on the outer 1/2 of the leading edge for optimum performance. Dull leading edges can increase cavitation during initial acceleration.
Eddie
