I fixed mine this weekend. Turns out the O rings where the choke pins go in were no good and air was going past them and making it lean.

So in my situation, mine is shaft driven not belt, but it will backfire through the front carb and occasionally shoot fire out through it when the air box is off, but when I put the air box on it'll consistently and constantly backfire on a bout half throttle, below half it's a little sluggish climbing through the rpm, but above half throttle it seems to be fine and have normal power and speed, but if I try to pull anything in low it will spit and sputter like crazy, but from the video it seems like a good carb cleaning or even just a new carb entirely might help to the trick. Also something I noticed, if I point my hand on the complete intake of the back carb and it starts to choke out, whatever that piece of metal that takes up most of the throat of the intake tube,(the thing moves horizontally and if you give the motor throttle it'll move, it might be the throttle body) if I choke the back carb with my hand it'll move on it own I guess because it knows to try and give the motor more air but if i do the same with the front carb it just stays in the same position and doesn't move. Also if i go to choke the back carb the motor will almost choke out, but if I go to choke the front carb hardly nothing happens. I know this is alot I just tried to give as much info as possible and anything would be appreciated, thank you.

@whatsnext8825

2 жыл бұрын

Might want to peak at your diaphragm and make sure that's not broken. Also a good carb clean would be good.

@alexrippons9260

2 жыл бұрын

@@whatsnext8825 thank you, much appreciated

@alexrippons9260

2 жыл бұрын

@@whatsnext8825 and the fact that you're still responding to comments 8 months later actually means alot.

@whatsnext8825

2 жыл бұрын

I appreciate you pointing that out. I'm happy to help if I can and it's great you found the video.

How did you fix the flames coming out of the carb? my 02 Kawasaki 650 prairie is doing the same thing were it is backfiring and plowing flames out the carb.

@whatsnext8825

Жыл бұрын

What have and haven't you done?

What where your mixture settings

I need to fix my bike but it won't start. I hook that jump starter thing cause the battery doesn't get enough juice and when I go to turn it over the bike just almost turns on but it won't could it be the carb or just the battery

@whatsnext8825

2 жыл бұрын

Try squirting gas in both carbs with the airbox off to see if it will fire.

How is that even running with air bok off?

I’m wanting to upgrade my choke springs to stop fuel from leaking into the crank case. Do you know what springs I could use? I’ve heard use springs from a KLR but I’m not sure what year. Thanks

@whatsnext8825

2 жыл бұрын

I guess I'm a bit lost. Not sure how choke springs would have any effect on this issue. To ke it sounds like you need to look into your needle/float. Make sure the float floats and the needle is getting a good seal!

@DieselZee

2 жыл бұрын

@@whatsnext8825 apparently there is a common problem with the 02 prairies. I’ve heard they have weak choke springs that do not allow the choke to close all the way and when the bike sits for a long time gas leaks into your cylinders and down into your crankcase. One way to help is to turn the fuel off when not riding it. It’s all over forums but nobody says what kind of springs to put in. They just say change them out.

@DieselZee

2 жыл бұрын

@@whatsnext8825 this has happened to me last week. I forgot to turn the fuel peacock off and it say for a couple days. It was so bad the fuel fouled my plugs when trying to start it

@whatsnext8825

2 жыл бұрын

Definitely sounds odd. The springs may just get weak. Possibly just new ones may do the trick. Maybe even stretching them a tad more to give extra resistance...dunno. Definitely a new one to me!

Hey I am having the same problem

I have an 2002 Prairie 650 just like you do that I bought used about 4 years ago and ut runs like a bat out of hell although you can hear it missfire once in awhile but I do have a question but not sure if you can answer it. I just replace the two front tires and one is wearing down a lot quicker than the other. I do ride it on our simi paved county roads if that means anything and I only do it in two wheel drive. Any ideas? Thanks!

@whatsnext8825

2 жыл бұрын

Check the alignment....left to right...be sure they're pointed relatively straight! If out of whack, they can wear funny and quicker on pavement.

@webman1956

2 жыл бұрын

@@whatsnext8825 How do you adjust it? It does kind of pull to one side when I ride it.

@webman1956

2 жыл бұрын

@@whatsnext8825 I just found a video on how to do it, thanks for you imput.

@whatsnext8825

2 жыл бұрын

Awesome and glad I could help somewhat. Thanks for watching and hopefully you're able to fix your alignment!

why is front carb doesnt open while i throttle ? carb was just cleaned ! thanks

@whatsnext8825

Жыл бұрын

What exactly isn't opening?

@tacomafan7488

Жыл бұрын

@@whatsnext8825 inside the carb the upper air hole ! Look like I found the problem i damage vacuum rubber piece! That’s why doesn’t have pressure to open that’s what I think !!!

@whatsnext8825

Жыл бұрын

Yeah makes sense...its run off vacuum.

My prairie 700 is blowing gas out of the air box. Any idea where to start? Cleaned the carb 3 times

@whatsnext8825

2 жыл бұрын

Have you checked compression and timing?

@Evangilizer

2 жыл бұрын

@@whatsnext8825 no i havent.

@whatsnext8825

2 жыл бұрын

@@Evangilizer good things to be sure are okay

@Nate-cw7of

2 жыл бұрын

@@whatsnext8825 I have a 03’ 650 that blows smoke like a fog machine, No color to it. I believe I over stressed the engine by pulling logs in high gear. Still will run just fogs and little to no power. Any idea?

@whatsnext8825

2 жыл бұрын

Are you losing antifreeze?

Mine won’t run right without the air box refitted .

@whatsnext8825

6 ай бұрын

It won't run at all or just won't run correctly? They're definitely one of the most finicky motors I've ever worked on!

Hook it all up

Sync carbs

Can you do how to un governer it

@whatsnext8825

3 жыл бұрын

Didnt realize they're governed....are you sure they are? I dont believe so....

@BeardedDaddyD

3 жыл бұрын

Belt light puts it in a limp mode and won't rev because it thinks the belt broke. If you pull the belt cover off there is a switch. This can go bad and give false alarms. Best thing to do is buy a dyna tech digital ignition. It overrides the belt limp, reverse override and most importantly it gives huge horsepower increase by overrideing the de tune off idle and at 45 mph.

@whatsnext8825

3 жыл бұрын

Or even better...just dont own one of these lol. I much prefer my 2019 Polaris XP1000 premium 😁

@BeardedDaddyD

3 жыл бұрын

@@whatsnext8825 I'm sure it's nice but Polaris all sound like shit

@whatsnext8825

3 жыл бұрын

Watch a few of my vids with my 1000 in it. I've had many compliments in it and a few saying they dont even like polaris....but loved how its sounds. Worth a look/listen if you have some spare time.

and it wont start either!

Both values on my carb wont open up. I only have one value opening up.

@whatsnext8825

3 ай бұрын

What valves are you talking about?

@walterdavis8085

3 ай бұрын

The two things that opening up when you give it gas. They are on top of the carbs.

@whatsnext8825

3 ай бұрын

Got pictures?