Hey!

I have a 2006 Polaris Predator 500, and it starts up fine. But when i give it some throttle it just dies, at first i thought it was just gummed up carb so i cleaned it but I am still having the problem. Any ideas guys? thanks

 

If your machine is equipped with a ETC it could need adjusted . A fairly common occurrence on Polaris machines as they get older is for the ETC to get out of adjustment. This is due to throttle cable stretch.

The purpose of the ETC is to cut power to the spark plug in the instance of a throttle that becomes stuck or frozen open. The ETC does this with a spring-loaded set of electrical contacts in the throttle lever housing. As long as there is enough tension to overcome the (light) spring in the housing, the contacts do NOT touch, resulting in normal operation. Whenever the contacts touch, you can lose spark. If your engine seems to sputter/backfire upon de-acceleration, and doesn't always idle smoothly, or, in extreme cases, not well at all, try adjusting the ETC.

Follow the throttle cable where it exits the housing on the handlebar. Where it 'bulges', slide back the cover. There will be a threaded adjuster. Loosen the locknut, and lengthen the adjuster so you get about 1/16 to 1/8 inch of free travel at the end of the throttle lever. Now start the engine. Turn the handlebars to the extreme right and left to be sure the engine doesn't speed up (do this in neutral). If the engine revs, loosen back the adjustment so it doesn't. If it maintains idle speed from full right to left, you got it right. ( Taken off the web )

 

just tried adjusting the "bulge" still teh same problem, any other ideas?

 

Sounds like **** in the carb, take it completely apart and clean again. There may still be something in there.

 

Spark Plug fouled/weak spark
Obstruction in air box
Air box removed
Incorrect or restricted carburetor jetting
Carburetor vacuum slid sticking/diaphragm damaged
Incorrect ignition timing
Restricted exhaust system

 

Check all above mentioned items,if still have problem,could be tight valves,can cause poor running or no start condition if too tight. This is a shim under bucket system,may be time to check clearances if haven't been done. The couple I had problems with wouldn't start because of clearance. Just a thought. OPT

 

been googling things trying to help also, and a common problem, least on other makes with my symptons, is parking brake switch sensor, does a predator have this? I know it has a parking brake but, where would the switch thing be?

 

You have a pressure switch on the hand brake for the brake light,plus you have a safety switch on clutch lever to prevent starting in gear unless lever is pulled in. OPT

 

is there someway to test the pressure switch? thanks

 

If brake light works,the switch is good!