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Author Topic: 450r not running!!!  (Read 12855 times)
WOODY_450r
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« on: June 15, 2006, 04:13:26 PM »

alright well i got on my 450r today and i went to floor it and it reved up real high then bogged out and went, put put put put put then stalled, and it kept on doing this.

do you think that there might be water or somthing in the carb?
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JOSH WOODS #411

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« Reply #1 on: June 15, 2006, 05:23:07 PM »

is your air filter clean Undecided
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« Reply #2 on: June 15, 2006, 05:37:19 PM »

Hows your Gas? Old?  Put some fresh 93 Octane in it Undecided

*Clean your Air Filter & AirBox*
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« Reply #3 on: June 15, 2006, 06:31:08 PM »

try 2 change your plug
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« Reply #4 on: June 15, 2006, 06:39:16 PM »

ya if it's not starting back up its probably the spark plug thats the first thing id try.
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« Reply #5 on: June 15, 2006, 06:42:09 PM »

Was it warmed up and everything, and does it have clean and enough oil in it?  Is the fuel percock on?  Is the choke on?  Check the plug too.
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WOODY_450r
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« Reply #6 on: June 15, 2006, 06:42:44 PM »

my gas is fresh and my filter is clean and i just put new oil in it, my dad thinks there might be water in the carb? Undecided   but ill try a plug!
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JOSH WOODS #411

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« Reply #7 on: June 15, 2006, 06:46:16 PM »

my gas is fresh and my filter is clean and i just put new oil in it, my dad thinks there might be water in the carb? Undecided   but ill try a plug!

Water in the carb is sometimes as easy as just draining it, it'll get it out sometimes.
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« Reply #8 on: June 15, 2006, 06:57:39 PM »

Will it idle? Does it bog when you give it gas and the shut off? If so I would check to see if the clip the holds the needle is broken. When you give it gas the slide will come up and the needle will stay down, choking it out.
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« Reply #9 on: June 15, 2006, 07:19:35 PM »

AHA!!!!!!!!!!!!!!!!!!!!!!!!!!!
NOW YOUR BIKE ISNT WORKING!!!!!!!!!!!!!!!!!!!!!!!
thats what ya get for makin fun of me Roll Eyes
















Dont it suck, i hope you get it fixed fast, Could be a dirty carb, I'm no expert though, hope its an easy and cheap fix!
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WOODY_450r
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« Reply #10 on: June 15, 2006, 07:55:02 PM »

alright, i got a new plug in it, and it is still not working.

yes 450r racer i give it gas and it goes put put put put then dies!

how too i drain the carb?
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JOSH WOODS #411

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« Reply #11 on: June 15, 2006, 08:07:29 PM »

alright, i got a new plug in it, and it is still not working.

yes 450r racer i give it gas and it goes put put put put then dies!

how too i drain the carb?
Check your muffler bearings sometimes they cause that or your cool start by-pass check valve in the radiator could be acting up, flush it out with some gator aid high endurance or some red wine.
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WOODY_450r
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« Reply #12 on: June 15, 2006, 08:25:12 PM »

ya ill get right on that eric Roll Eyes
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JOSH WOODS #411

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« Reply #13 on: June 15, 2006, 08:41:38 PM »

It's not your plug, it's not your exhaust...

it's either a fuel issue, or an air/fuel mixture issue.

Put your petcock in the reserve position and try that.  If that doesn't work, then I'd drain the carb.


Good luck


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« Reply #14 on: June 15, 2006, 09:01:14 PM »

did you leave your air box lid on after washing it, sounds like something stupid like that.
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« Reply #15 on: June 15, 2006, 09:07:14 PM »

This may sound stupid Josh but I ran mine with the airbox lid off and it did the same thing. With the stock jets it runs like crap when it gets too much air. Good Luck!!
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« Reply #16 on: June 15, 2006, 10:32:33 PM »

Of course...

It could be the Fitzer Valve. If that's the case, you'll need some 30 weight ball oil and some ball bearings.

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It ain't fast without mixed gas....


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« Reply #17 on: June 16, 2006, 09:13:45 AM »

If it revs up real high then died that is a sign of a really lean condition then since it's so lean it runs out of gas hence the bogging and engine stopping. Basically what you did is burned all the gas that was in the bowl. Correct me if I'm wrong but don't 4 strokes have some type of electrical gismo conntected to the carb kinda like a fuel pump. I read that on a site when I was searching for a carb for my 500. If there is something like that then my guess is that it shorted out and didn't feed carb enough fuel.  -Mark
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« Reply #18 on: June 16, 2006, 09:32:30 AM »

does it do it all the time hot cold or after it sets
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« Reply #19 on: June 17, 2006, 10:02:11 PM »

clean the bowl on the bottom of the carb. my friends 86 250x does that too. the gas tank is so old it gets stuff in it all the time. we put a fuel filter on it and it does a lot better. anyway check that. if there is stuff in there clean it out and get a fuel filter if you dont have one. it is only like 4 bolts on the bottom of the carb on his.
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« Reply #20 on: June 17, 2006, 10:25:27 PM »

alright well i got on my 450r today and i went to floor it and it reved up real high then bogged out and went, put put put put put then stalled, and it kept on doing this.

do you think that there might be water or somthing in the carb?

i had the same problem with mine about 3 months after i got it, i just cleaned my carb and cleaned out my tank(there was stuff in both) and then it ran perfect, mostlikly whats happening is when u go to rev up it sucks something up into a jet which inturn kills it, just make sure u always get good gas and never have anything in it, a inline fuel filter wouldnt hurt either
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« Reply #21 on: June 17, 2006, 11:46:27 PM »

i read somewhere that the tanks have a filter built in the pet thingy. Undecided

any way. i think you need 2 rejet it josh. i pulled that plug out and it was BLACK!!! plus before i pulled the plug out i jabbed the gas but the plug was dry.  Undecided
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« Reply #22 on: June 17, 2006, 11:55:21 PM »

i read somewhere that the tanks have a filter built in the pet thingy. Undecided

they do, but it only filters out larger things, small stuff goes through it, i had like lil black specs of dirt or something in mine  because the gas station had a bad thing of gas, a inline filter keeps most or all of that out, mine has been runnin perfect ever since i cleaned out my tank and carb
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« Reply #23 on: June 18, 2006, 12:12:31 AM »

already borke this one to?
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WOODY_450r
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« Reply #24 on: June 18, 2006, 12:20:42 AM »

shut up tom how bout you learn how too ride before you talk crap about me.....your brother who has been riding for 1 month or less is already 3 times as fast as you....wait the mini quads are already twice as fast as you....so sut up fat azz
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JOSH WOODS #411

05 450r
01 chevy 4x4
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