on my friends explorer when you woul be goin and then let of the gas it would back fire really loud what is the problem?

 

I'm not sure this is the problem but he could have a hole in his muffler!
My uncle's '92 YAMAHA Big Bear does this and it has a hole in the muffler, i don't know what it is from or how big it is, but i don't think it is very big! Just a thought!

 

You need to adjust the idle. It's probably a little low. On the right handlebar pull the rubber boot off the throttle cable and you will see the adjust nut. Back off the lock nut and spin the adjustment ring until the idle starts to increase, then back off a 1/4 turn. Tighten the lock nut and slide rubber boot back on. Do this with the handlebars straight. This should take care of your friends backfiring problem. Easy to do. -Glen

 

will it make a difference it is a 500

 

Glen-
Not to disagree with you or anything, but the procedure you describe sounds like you're just taking the slack out of the throttle cable, not actually adjusting idle???? I did this same thing on my 'Cat to remove about 1/2" of "slop" in the cable. You have to keep the handlebars strait to adjust it, then when it's where you want it, turn them full-lock in each direction to make sure the idle doesn't increase due to the handlebars being turned and the cable being too tight-thus, giving more throttle. There is a separate idle adjustment **** coming off the carbuerator on the right hand side, which comes off a little tube about 3-4 inches long. This is where you adjust the idle for the carb. Are the machines you refer too different?

I'm sorry, I don't mean to disagree with you by any means, I don't know how the Xplorers are set up like that, what you just mentioned is exactly how I removed the slack for better throttle response, but not to adjust the idle.

Anyway, just confused! [img]i/expressions/face-icon-small-blush.gif[/img] Thanks for the help!

Oh, and another thing you might check is the jetting-with my stock 150 main jet, and running full out, then letting off immediately, it would back fire a little. I dropped to a 145, and haven't had a problem since. Might be worth a look.

Best of luck, and happy trails!

Mike

 

Cowboy, I think what Glen means is the cable needs adjusting. The newer Polaris machines have a sensor that will cut power to the spark plug in the advent of a stuck open carb. Basically all it does is sense when all tension comes off the cable, and when it does so, it will cut the spark at any engine RPM above idle. What happens is that sometimes when the cable gets too loose, it will cut the spark at speed, and when you hit the throttle again, the spark plug will fire again, igniting the unburned fuel that made its way into the muffler, hence the backfire.
You are right, however, about the idle adjustment. It IS on the carb. If the throttle cable is so tight as to speed up the idle, it is too tight.

Hope this clears things up
Farmr

 

Ah, it all becomes clear now! Thanks for the help Farmr, you're a kind man! Speaking of which, how's the farming going these days-any trouble with the neighbors??? Hope you got that all straitened out-though come hunting season, all bets are off, right! Sorry to hear about that kind of situation, with guys like that, nobody wins.

Anyway, best of luck, and take care man!

Mike

 

You guys are correct, I should have been more specific. Farmr, perfect description as to what I was getting at. No mention of what year the Explorer was. -Glen

 

Cowboy,
Well, our 'new' neighbors finally got to know some of the people out here, and things are going well. The best part is the guy renting it (and kind of running things out this way) is one of the best guys in the world to deal with, and that helps a LOT. With him as a go-between (it is hard to deal with someone you only met once or twice) things are going great. I think on his end, he didn't want to let someone he didn't know on his place until he knew what kind of people we were. Last year he let anyone in my family cross the fence, so to speak, but didn't want anyone else unless they had specific permission. Fair enough. I can live with that, for so far, they have been very respectful to our side of the fence, as well. I was just afraid he might be one of those guys who thinks the fence is only to keep us in, not him out.

Also, he was leery about people over-hunting the turkeys out here. Well, this last deer season, we had over 300 of them crossing between his and ours, so I kind of think that eased his mind that the whopping 4 or 5 that get removed from our side of the fence each fall were no big deal.

Farming is going OK, we finally got some much-needed rain, now if it will rain again next week, we MIGHT not have to buy any hay.

All for now, as I think I am getting us thrown off the subject, I am kind of good at that sometimes.

Take care all
Farmr