btt
Starting Problems
i have been searching on here for about an hour now but no answers. i cranked my quad yesterday after changing the oil, oil filter, and plug. i had it on the charger for about an hour and half. it fired right up but after i pushed the choke back in it ran fine for about 5 min then died. then it turns over but won't crank. help please. thanks.
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really need help!!! installed new battery today and changed the coolant. turns over fine just won't fire up.
try pull starting it. Do you have spark?? and this may sound stupid but is the gas on? Do you have gas in the tank?? Is your intake blocked??
Check or change/clean the plug also. If your low circuit is rich it could have gummed up or fouled a plug.
You shouldn't really need to leave your quad idling for 5 min. though.
You shouldn't really need to leave your quad idling for 5 min. though.
QUOTE (mudd4 @ Mar 23 2009, 09:00 PM) index.php?act=findpost&pid=761351
I would check the fuel petcock, seems like thats the obvious thing.
yea you do. Warm up period is about that long, thats what i do with mine anyways. Everytime i ride it i warm it up for at least 5 mins, or til i can feel a lil heat off the cam cain side of the motor.Check or change/clean the plug also. If your low circuit is rich it could have gummed up or fouled a plug.
You shouldn't really need to leave your quad idling for 5 min. though.[/b]
I would check the fuel petcock, seems like thats the obvious thing.
fuel is on and has a brand new plug, oil, oil filter, coolant, you name it. we tapped on the carb today and its trying a to crank now. i think the floats may be stuck. what do you mean by low circuit mudd4? i have been able in the past to pull start it but it takes a few tries.
QUOTE (YFZER359 @ Mar 24 2009, 10:18 PM) index.php?act=findpost&pid=761784
If it is real cold out then you might want to let it run a little longer.
Well you can warm it up that long if you want, but it is not required. In my opinion it only takes a couple min. to warm up enough.yea you do. Warm up period is about that long, thats what i do with mine anyways. Everytime i ride it i warm it up for at least 5 mins, or til i can feel a lil heat off the cam cain side of the motor.
I would check the fuel petcock, seems like thats the obvious thing.[/b]
If it is real cold out then you might want to let it run a little longer.
QUOTE (gloverdaniel @ Mar 24 2009, 11:07 PM) index.php?act=findpost&pid=761816
If you haven't already I would recommend pulling and checking the plug, cleaning or putting in a new one. If there is nothing wrong with that, I would start checking other things fuel related. Pull the fuel line off the carb and make sure gas is getting to the carb.. Then check spark on the block to make sure there is spark. Then inspect clean carb.
Since it ran for 5 min. before stalling out I would guess either the plug fouled or gas is blocked somewhere.
If you have a new plug you put in, have you checked it since you ran it and it shut off?? Also what I meant by the low circuit is the Pilot jet. But since it sounds like it ran before you changed the oil, it shouldn't really be a issue. But also depending on how long you left the choke on, it is possible that the plug got carboned up. Maybe the plug is junk, it is possible to get a bad plug or have it foul out prematurely, not common but still possible. Or maybe a piece of debris from the gas tank went into the carb and blocked a jet or circuit.fuel is on and has a brand new plug, oil, oil filter, coolant, you name it. we tapped on the carb today and its trying a to crank now. i think the floats may be stuck. what do you mean by low circuit mudd4? i have been able in the past to pull start it but it takes a few tries.[/b]
If you haven't already I would recommend pulling and checking the plug, cleaning or putting in a new one. If there is nothing wrong with that, I would start checking other things fuel related. Pull the fuel line off the carb and make sure gas is getting to the carb.. Then check spark on the block to make sure there is spark. Then inspect clean carb.
Since it ran for 5 min. before stalling out I would guess either the plug fouled or gas is blocked somewhere.
pulled the new plug and it was soaked in fuel. checked the spark and its perfect. pulled the line to the carb and fuel is getting there so i am guessing maybe bad fuel or carb is gummed up. i am gonna clean the carb and give it a go.
QUOTE (gloverdaniel @ Mar 26 2009, 11:12 PM) index.php?act=findpost&pid=762755
If it does start, I would just let it warm up for a few, then go ride it, maybe something did plug it temporarily, then cleared. I would go open it up, and add new fuel. You may want to try and run your gas down first and maybe drain and clean the tank.
Have you always let it sit and idle for 5 min. before this time, with no problems? How long had the quad sat before you changed the oil and coolant? Are you just getting it out for the season, or had you been riding it this year already?
It could just be the plug, since you say it was soaked in fuel, so it sounds like its getting gas. I might try a different plug, or cleaning that one, before tearing the carb apart. If it starts then I wouldn't think it would be the carb.. If it doesn't then I would tear into the carb.pulled the new plug and it was soaked in fuel. checked the spark and its perfect. pulled the line to the carb and fuel is getting there so i am guessing maybe bad fuel or carb is gummed up. i am gonna clean the carb and give it a go.[/b]
If it does start, I would just let it warm up for a few, then go ride it, maybe something did plug it temporarily, then cleared. I would go open it up, and add new fuel. You may want to try and run your gas down first and maybe drain and clean the tank.
Have you always let it sit and idle for 5 min. before this time, with no problems? How long had the quad sat before you changed the oil and coolant? Are you just getting it out for the season, or had you been riding it this year already?
i usually let it warm up for a few minutes. i pulled the plug and cleaned it and tried cranking it again then pulled the plug again and it was dry. turned drain screw on carb and no fuel comes out. i am tuning it up for the season. i haven't rode it since october and its been sitting in the shop. thanks for all the help so far.
QUOTE (gloverdaniel @ Mar 27 2009, 12:42 AM) index.php?act=findpost&pid=762808
Ok now were getting to some good info. It does sound like the carb. now. If you never ran all the fuel out before storing it, it is probably gummed up. It may have just ran out what fuel was in the carb then died because it got plugged. I would recommend cleaning your carb out every year after letting it sit for awhile or months.i usually let it warm up for a few minutes. i pulled the plug and cleaned it and tried cranking it again then pulled the plug again and it was dry. turned drain screw on carb and no fuel comes out. i am tuning it up for the season. i haven't rode it since october and its been sitting in the shop. thanks for all the help so far.[/b]
cool beans. i will get right on that. i have never owned a race quad and have yet to figure out the best way to store them or care for them. i am use to my rincon where i just get on it and go. the 450 is picky as hell!!! if it ain't perfect it don't like you. thanks for the help again. i will keep you posted.
nothing to do with the thread but i am new on here and want to list all my mods. where do i do that?
QUOTE (gloverdaniel @ Mar 27 2009, 09:22 PM) index.php?act=findpost&pid=763127
click on your username on the left hand side where it says (Log Out), then on your page and click on edit signature, thats where you do it. Make sure its not to long or the will take it out and it will say "Sig too long, Please read sig rules" or something like that.nothing to do with the thread but i am new on here and want to list all my mods. where do i do that?[/b]
QUOTE (gloverdaniel @ Mar 28 2009, 01:20 AM) index.php?act=findpost&pid=763125
Storing the 450 is no different than anything you store, lawn mowers, snow blower, even your rincon. You should use some kind of a fuel stabilizer, change the oil, and some recommend running all the fuel out of the carb or draining it before storing.cool beans. i will get right on that. i have never owned a race quad and have yet to figure out the best way to store them or care for them. i am use to my rincon where i just get on it and go. the 450 is picky as hell!!! if it ain't perfect it don't like you. thanks for the help again. i will keep you posted.[/b]
got it runnin!!! love my new parts!!! the float needle was stuck closed and it wasn't getting fuel. i pulled it out and cleaned everything with carb cleaner. only thing is that when you gas on it and just let it slow itself then it back fires. it did that last year though but i don't know what the problem is.
btt
QUOTE (gloverdaniel @ Mar 30 2009, 10:16 PM) index.php?act=findpost&pid=764158
I would say, find out what size pilot is in there, if you don't already know. Then go to a local dealer or somewhere and pick up the next size jet and try it. Or tear the carb back apart again, and double check that all the little circuits are clean also, not just the jets.
I am no expert but it sounds like maybe your pilot jet is too small or plugged yet. Pooping on decel is a sign that the pilot may be too small. If you have done any mods and have not rejeted than that is most likely the issue. If you have rejeted, then it may just not be right yet. Also sometimes just doing the cam mod can cause a lean pilot circuit and require bumping it up, if it is hard to start or popping on decel.got it runnin!!! love my new parts!!! the float needle was stuck closed and it wasn't getting fuel. i pulled it out and cleaned everything with carb cleaner. only thing is that when you gas on it and just let it slow itself then it back fires. it did that last year though but i don't know what the problem is.[/b]
I would say, find out what size pilot is in there, if you don't already know. Then go to a local dealer or somewhere and pick up the next size jet and try it. Or tear the carb back apart again, and double check that all the little circuits are clean also, not just the jets.
1 - 20 of 25 Posts
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