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tfred13

2007 Honda TRX450er idle problem

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ok i have a 2007 trx450er. when i start the bike with the choke on it will idle. but once i turn off the choke it well idle for 30sec. to a min. then die. ive tried adjusting the idle screw but still does it. help me please

Edited by Ajmboy

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How long are you leaving the choke on? is it fully warmed up and are you backing the choke off slowly?

* Added year and manufacturer to your thread title.

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sounds like just dirty from sitting pull off float bowl clean out with carb cleaner squirt some carb cleaner up those little jets that are sticking down where the float bowl was , some times this will get it,if it dont you"ll have to disassemble the carb and clean out those little holes in the jets, i use small number drills some times i use welders thorch tip files if i can find them small enough.

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That is kind of what I was thinking, sounds like your pilot is running a little lean. If the machine sat for a long period, then carb buildup could definately be the problem. If it just started happening all of a sudden, and the machine has not been stored for a long time, I would check for an air leak in the intake track. If you just aquired the machine, or made a significant change in elevetion, I would try adjusting the pilot screw or going to a larger pilot jet.

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:no: ok so i did wat you guys said clean out the carb. put everything back together and it still does the same thing. im confused now. its like when the choke is on it well idle but right when i take it of it well die in like 10 to 15 secs.

idk could it be bad gas?

i made sure i tighted everything.

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If you used gas with ethanol in it, that could cause some issues.

It is not getting enough fuel at idle, if it runs fine when you put the choke on you need to decrease the amount of air going in or increase the amount of gas.

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but its all stock. ive done nothing to change the amount of fuel or air going into it. for got to mention that when the choke is on it idles a lil funny, it well idle high then go down then high then down take choke off then couple secs it dies.

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Check for any air leaks in the intake boot. How does the air filter look? Did the quad sit for an extended amount of time?

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I would remove the carb and completely take it apart. Clean the heck out of all of the passages and jets. Use a torch tip cleaner to poke through all of the jets.

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Also, to answer your earlier question, bad gas could definately be your issue. If it sat for a year, I would definately get rid of the gas, clean the tank and make sure the petcock is clear. There is a screen in the tank that goes over the peckock, make sure that is clean too. When you clean the carb you need to clean EVERYTHING. So you may have missed something when you cleaned it the first time. Also, your choke mechanism itself could be part of the problem, make sure to take it apart and clean it too.

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check plug and clean it,if it still does it ck and see if you have vacume,sprey water around intake and carb that will tell you if it is sucking airalso ck breather if dirty clean it with soup and water let it dry reinstall itif none of that helps you need to clean carb jets,make sure needle valve is not sticking make sure air iset 1.5 to 2.5 turns out if you do all that it will run

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I'm having the same idling problem with my 07 450er and Ives done all the things you have listed above. and it won't idle and pops on deaccelerarion. sometimes it bogs down real bad if I push it anywhere over 3/4 throttle. any ideas?

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