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Discussion Starter #1
put on 200 miles of extremely dusty conditions this weekend. first time ever ran in this much dust.
anyway my air filter must of plugged up and it started to suck air through the seal on the airbox. needless to say there is a heavy layer of dust all the way to the carb.
how much damage did this do?
i figure drop the oil, fill and run for a little while and drain again.

what do you guys do to prevent this
thanks
 

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put on 200 miles of extremely dusty conditions this weekend. first time ever ran in this much dust.
anyway my air filter must of plugged up and it started to suck air through the seal on the airbox. needless to say there is a heavy layer of dust all the way to the carb.
how much damage did this do?
i figure drop the oil, fill and run for a little while and drain again.

what do you guys do to prevent this
thanks
I was scared of this when i first seen where it sucked it's air from. That is the main reasion that snorkeled my prowler on the second day i owned it i've driven as many as 500 miles without cleaning the filter and still not very dirty .
 

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put on 200 miles of extremely dusty conditions this weekend. first time ever ran in this much dust.
anyway my air filter must of plugged up and it started to suck air through the seal on the airbox. needless to say there is a heavy layer of dust all the way to the carb.
how much damage did this do?
i figure drop the oil, fill and run for a little while and drain again.

what do you guys do to prevent this
thanks
Got to thinkin about your dirt in your carb i don't think changing the oil will do much for you .you sucked dirt right into the cylender and have likley scored the walls and damaged the rings . I'm not sure how mechanicaly talented you are but if it was mine i would take the head off and do an inspection of the damage you have done (if any) and clean up the best could with brake clean and an air line (trying to remove any grit off the ring area ) and if no damage was evident put a new head gasket in and run it
 

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I would go ahead and change the oil a time or two with low miles between and do a complete clean up , as to the cylinder/ring .. damage it's done now .. run it and watch the oil usage it might not smoke now but probably will ,do to scoring ... when it gets to a point that your using a bunch of oil then go in and fix the damaged part with a top kit [piston , ring, cylinder and wrist pin ] and check the lower end also while your in there as there might be some rod/crank issues also. just one mans opinion
 

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Change you oil a couple of times in short periods. For some reason, possibly due to the crankcase breather, when these engines suck dust it can get into the crankcase and cause your rod bearing to go out. I didn't know this until last week when a customer brought in their 700 because it wasn't running. Rod completely froze up. The air cleaner was cleaned by himself and he didn't reoil it and that caused the engine to suck dirt. I didn't think this would cause the rod problem, but I talked to cat and they said everytime this problem has happened it is because of the engine ingesting dirt. After the crankcase was seperated, sure enough there was dirt in the bottom of the crankcase.
 

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Discussion Starter #7
well don't think this motor will get its normal life expectancy. drained the oil, it was really dark and you could feel a little grit. oil filter was a thick sludge.
guess i'll run it until she starts to really burn oil or loose compression.

we"ll have to have my buddy find a smashed up bike with a good motor.
 

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I have a 2007 prowler in my shop now with a bad crank, head, cylinder, bearings, oil pump drive gear looks and feels bad. If you take this thing down you need to look at the oil pump drive gear this is the second one I have seen. The first one did not have any teeth on it and it took out the top end because of no oil being pumped up top. Any way on this prowler we went with a new motor. Last time I priced a 650 motor it was like 5500 now they are 2300 to 2400. It was a no brainer to go with a new motor.
 
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