Possible Clogged injector?

M

MTSledder94

Free Member

Aug 30, 2014

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NW MT

• Mar 11, 2017

• #1

I have an 11 assault 800 and the mag side spark plug is bone dry. It was runnig fine then i stopped and shut off the sled then started it again and it was only hitting about 6100 RPM. I checked both plugs and the PTO side looked fine but the MAG side was completely dry. Would a clogged injector cause this? The plug is getting spark.

 

M

MTSledder94

Free Member

Aug 30, 2014

113

49

28

30

NW MT

• Mar 11, 2017

• #2

It also has the injector update

 

Murph

Polaris Moderator/ Polaris Ambassador/ Klim Amb.

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Feb 6, 2008

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Truckee, CA / Santa Cruz, CA

www.missingdigitmotors.com

• Mar 11, 2017

• #3

Clogged injector or broken wire not allowing injector to fire.

 

T

Turboegt

Active member

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Dec 16, 2015

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• Mar 11, 2017

• #4

In order:

1) Fuel filter - Check make sure it's clean

2) Fuel Pump - Check for strong operation.

3) Injectors - However you said you already have the injector update. Check for functionality, and pinched or frayed wiring. Check for voltage at the injector with power applied to the ECM.

My bet would be fuel pump. Mine just went down.

I dropped in a Walbro 255lph pump.

Factory pump flows 45lph.