I just picked up a 2006 Predator 50 for my kids, It was not running when I bought it. The owner said that it was running fine one day, Then the next day it would not start. I figured it was a dirty carb and went ahead with the purchase. I got it home and started pulling it apart, First the carb and yes it was dirty. Put it back together and still no start. At this point I have spark and fuel in the cylinder. So i figur it has a weak spark, Pull the stator and pick up ( they were covered with mud) clean and re assemble, No luck. I go online and buy a Repair manual for some more thoughts. The next thing to be checked are the reeds, I pull them and all is OK, Now I'm worried that it will need rings and a piston... The manual says check for blocked exhaust, I pull the pipe off the cylinder and try and start, Bingo it starts fine. I then pull the pipe off and look into it from the rear and it is blocked solid with mud. I hope this info will come in handy for someone when they are stuck and have tried all the normal places to look.

 

Thanks for sharing that. It may come in handy some day.

 

Will do. I'll keep this saved.

 

the previous owner was right on when he said "that it was running fine one day, Then the next day it would not start". He was honest. his little tike been muddin!

 

As complicated as these new quads have become it makes one overlook the simple stuff doesn't it? Reminds me of the movie Sling Blade when Carl says " It ain't got no gas in it" lmao

 

I know that a Two stroke runs best with some Back pressure, they even engineer pipes for a specific amount of back pressure at a given RPM range. That seems a little excessive.

I wonder if the kids were trying to redneck the performance power curve?

 

I heard of mud dauber wasps making nests in ATVs too. Your pipe can get plugged without going muddin.

 

IDK about all of you, but that one quad I would want to unknowingly try to start!!!! It could hurt. I was mowing and went by an old electrical shutoff on an abdoned poll and bumped the poll. Lucky I was close to their swimming pool, I ditched the mower and dove into the pool after about twenty stings. I said more than OUCH!!!!