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1 gallon gas and a match. PLEASE!
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Topic: 1 gallon gas and a match. PLEASE! (Read 5519 times)
gery350
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Location: miami
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no guts, no glory
1 gallon gas and a match. PLEASE!
«
on:
April 01, 2006, 09:52:57 AM »
ok guys still pulling out my hairs with my sons z400. remember i jetted it and lost high rpm. well ive pretty much ruled out carb.ive put two other carbs and still the same. at high rpm it sputters as if the rev limiter kicks in early. ive tried another cdi box AND coil w/wire i got at ebay and same thing.
dont know what to do.
PLEASE HELP..............
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Toomey
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #1 on:
April 01, 2006, 10:28:08 AM »
I've gotta say that now you just gotta play with the jetting, have you taken a look at the plug at all? This guy here seemed to have the same problem, read through it and see what you find.
http://www.atvoutdoors.net/topic.asp?TOPIC_ID=10794
I mean really if the spark is perfect, and there's no probelms with the carb, it's gotta be the jetting. The jet kit is kinda like a baseline kinda, it won't be perfect for every single Z400 in the United States.
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klutchbuster400
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #2 on:
April 01, 2006, 10:32:53 AM »
Quote from: Toomey on April 01, 2006, 10:28:08 AM
I've gotta say that now you just gotta play with the jetting, have you taken a look at the plug at all? This guy here seemed to have the same problem, read through it and see what you find.
http://www.atvoutdoors.net/topic.asp?TOPIC_ID=10794
I mean really if the spark is perfect, and there's no probelms with the carb, it's gotta be the jetting. The jet kit is kinda like a baseline kinda, it won't be perfect for every single Z400 in the United States.
we changed the spark plug, and it cant be the jets, rememeber we tried two other carbs with stock jetting, and with jets.
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Mars
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #3 on:
April 01, 2006, 10:43:23 AM »
we changed the spark plug, and it cant be the jets, rememeber we tried two other carbs with stock jetting, and with jets.
[/quote]
Guys at this point you must look some where else.
Leave one of the stock carbs on the bike for now.
Inspect the intake manifold for cracks. This would be my #1 suspect.
Check all wiring in the carb area for pinched or crushed wires.
If your really board you can bring it to my place in Naples and I'll help you tear into it.
«
Last Edit: April 01, 2006, 10:47:04 AM by Mars
»
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Toomey
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #4 on:
April 01, 2006, 10:43:51 AM »
But like you know on my bike, when it's running rich and fouling plugs, the plug is black and maybe oily, so that means there's too much deposits on the plug, = too much gas coming in, so I had to go leaner on the jets. There are all different sizes of jets, not just stock and jet kit size. I'd have to say the main jet is the wrong size, and depending on how it's running, go up or down with it. I guess you could try this, ride the bike with the choke on, and see if it gets better or worse anywhere, how it changes. Put the airlid back on or take it off and see also.
So is it blubbering like it's getting too much gas when you rev it high?
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53yfz450
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #5 on:
April 01, 2006, 01:41:38 PM »
did you replace the rectifior i think is what its called. i know on the yfz's it goes out and i replaced it and it fixed it. we tried everything and that was the problem. its something you should look into.
its the thing bolted in the middle of my frame next to the shock ressi
#5 on the chart
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«
Last Edit: April 01, 2006, 01:45:14 PM by 53yfz450
»
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lugnuts
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #6 on:
April 01, 2006, 11:58:56 PM »
sounds like maybe possable flywheel key broken but only way can see that is if it back fired also heard of the 03's flywheel has several allen screws that can come loose and do some dammage in the stator area you may want to try the tec corner on z400 central just my 2c
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TOY_DOCTOR
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #7 on:
April 02, 2006, 09:59:13 AM »
1st Question, did you get dirt in the cylinder when removing the spark plug?? Have seen this happen many times, Only takes a couple grains to stick a ring. Compression falls and then the rich running syndrom...
2nd, There is a roll black controller on the left side of the engine that is for the netural and reverse lights and also controls rev limiter in all gears, I have seen these go bad and limit rpm's when not needed, If you check your wiring diagram this can be elimated so there is no rev limit in any gear.
I wouild look into the 1st suggestion first, any questions give a call
KEN 352-584-0959
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MuddFreak77
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #8 on:
April 02, 2006, 12:50:53 PM »
Hey Gery,
Before you burn it let me know, QT might take it off your hands for free!! lol
freakk
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Southern4x4
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #9 on:
April 03, 2006, 08:00:38 AM »
Quote from: MuddFreak77 on April 02, 2006, 12:50:53 PM
Hey Gery,
Before you burn it let me know, QT might take it off your hands for free!! lol
freakk
ILL BUY IT FOR $10
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gery350
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no guts, no glory
Re: 1 gallon gas and a match. PLEASE!
«
Reply #10 on:
April 03, 2006, 01:05:19 PM »
thanks everyone . i am working tonight(2nd job). so tomorrow when i get home i'm gonna check toy doctors theory. it sounds as if the limiter kicks in so maybe the cdi thinks its in neutral or reverse.
also my son changed the handlebar at the same time i changed the jetting so maybe something happened there(neutral/reverse light). well toy doctor gave me an idea i hadnt thought of(thanks).
i'll keep ya'll posted.
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hey this is klutchbuster350, me and rl400*mostly rl400* made my dad this sig. now lets see how long it takes him to notice lol
hey while im here...........klutchbuster rules!!!!!!
http://i6.photobucket.com/albums/y235/klutchbuster350/gery350_3.gif
MuddFreak77
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #11 on:
April 03, 2006, 01:11:28 PM »
Quote from: gery350 on April 03, 2006, 01:05:19 PM
also my son changed the handlebar at the same time (neutral/reverse light).
i'll keep ya'll posted.
I would also look for a pinched or cut wire in the handle bar area
Freakk
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Never argue with an Idiot. They drag you down to their level, and then beat you with experience!
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garym
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four wheeling or fishing, it always takes gas
Re: 1 gallon gas and a match. PLEASE!
«
Reply #12 on:
April 03, 2006, 01:55:41 PM »
Hey Freakk,
Are you sure you need to be giving directions for repairs?? If memory serves correct, I had to tow you home the other weekend!!
hootchman
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MuddFreak77
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Location: Fort Myers, FL
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #13 on:
April 03, 2006, 02:02:57 PM »
Quote from: garym on April 03, 2006, 01:55:41 PM
Hey Freakk,
Are you sure you need to be giving directions for repairs?? If memory serves correct, I had to tow you home the other weekend!!
hootchman
Yea yea yea..... I knew what my problem was.
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Never argue with an Idiot. They drag you down to their level, and then beat you with experience!
'07 Suzuki King Quad
3k Warn Winch
GPS
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Joedirt
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Re: 1 gallon gas and a match. PLEASE!
«
Reply #14 on:
April 03, 2006, 04:19:46 PM »
I do not know much about sport quads but sounds like the breather hose for the carb is kinked....or clogged....Just a thought....hope it is a simple fix
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