Splutters At Top End!

[barneyfzr600]

What does it mean, when it splutters at the very high top end?<!--EZCODE EMOTICON START :pistol --><img src=http://img.photobucket.com/albums/v209/ ... pistol.gif ALT=":pistol"><!--EZCODE EMOTICON END--> <p><br>Freelance Bodyman<br><br>I be ridin the Cali Bay Area '88 & '89 FZR1K BOTH ARE ONLY HALF NAKED NOW!!!</p><i></i>

[creed12r]

<br> could it mean you have hit the rev limiter, which cuts the spark to the plug.<br> It's about 12,000 on the exup I believe, although I have only hit it once.<br> I am usually more mechanically sympathetic to the old girl. <p></p><i></i>

[ExupElvis]

<!--EZCODE QUOTE START--><blockquote><strong><em>Quote:</em></strong><hr> What does it mean, when it splutters at the very high top end?<hr></blockquote><!--EZCODE QUOTE END--><br> Loss of combustion controll - Yes it could be the rev limiter, other things to suspect are spark scatter from a crank sensor starting to go bad, or weak valve springs bouncing at high rpm.<br> I don't know if I would suspect carburation too much on that description, but a plug check might be a good place to start.<br> B. <p><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;">Genisx1AtYahooeyDotCommaMomma</span><!--EZCODE FONT END--></p><i></i>

[FZRDude]

Could also be a weak spark caused by a battery going bad as well. <p><!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... <!--EZCODE IMAGE END--><br><!--EZCODE ITALIC START--><em><!--EZCODE FONT START--><span style="color:red;font-family:times new roman;font-size:small;">There are some who call me........Tim?</span><!--EZCODE FONT END--><br><!--EZCODE FONT START--><span style="color:white;font-family:times new roman;font-size:small;">Top Speed = Mach 0.197 or so... </span><!--EZCODE FONT END--> <br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;">1994 FZR 1000</span><!--EZCODE FONT END--></em><!--EZCODE ITALIC END--> <!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... <!--EZCODE IMAGE END--> </p><i></i>

[barneyfzr600]

It splutters between 10k and 11k! Good battery and the sprins were within specs when I split the cases! The bike does run good and thats about the only thing wrong with her! Oh well, I guess I can live with it! Thanks guys! <p><br>Freelance Bodyman<br><br>I be ridin the Cali Bay Area '88 & '89 FZR1K BOTH ARE ONLY HALF NAKED NOW!!!</p><i></i>

[MyYammiBeetch]

Try revving it out in the dark and look for sparks round the HT leads. (but not while you're ridin it Barney)<!--EZCODE EMOTICON START :rollin --><img src=http://www.ezboard.com/images/emoticons/roll.gif ALT=":rollin"><!--EZCODE EMOTICON END--> <p></p><i></i>

[dragracer1951]

Barney<br>My first guess would be the valve springs.<br>How did you set up the stack height???<br> <p>Jim <!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... Cheers.gif" style="border:0;"/><!--EZCODE IMAGE END--><br><br><!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... states.gif" style="border:0;"/><!--EZCODE IMAGE END--><br>Hey Kid...Is my taillight working?</p><i></i>

[barneyfzr600]

I followed what was in the manual! <p><br>Freelance Bodyman<br><br>I be ridin the Cali Bay Area '88 & '89 FZR1K BOTH ARE ONLY HALF NAKED NOW!!!</p><i></i>

[dragracer1951]

You can set up the valve springs to whatever height you want but you have to be mindfull of coilbind...<br>shim them under the spring to attain the desired spring height. This will give you a bit more preload on them and may move upward the point at which they float.<br>Pretty easy fix...I'd bet that beinging as old as them springs are.... <p>Jim <!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... Cheers.gif" style="border:0;"/><!--EZCODE IMAGE END--><br><br><!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... states.gif" style="border:0;"/><!--EZCODE IMAGE END--><br>Hey Kid...Is my taillight working?</p><i>Edited by: <A HREF=http://p072.ezboard.com/bexupbrotherhoo ... cer1951</A> at: 8/9/05 7:49 am<br></i>

[farrowt]

Had the exact same problem... usually meant I'd have to replace the plugs, but later found out that it was incorrectly spec'ed dyna coils on the bike... <p></p><i></i>

[barneyfzr600]

Now ya'll got me thinkin a bit!<!--EZCODE EMOTICON START :pistol --><img src=http://img.photobucket.com/albums/v209/ ... pistol.gif ALT=":pistol"><!--EZCODE EMOTICON END--> <p><br>Freelance Bodyman<br><br>I be ridin the Cali Bay Area '88 & '89 FZR1K BOTH ARE ONLY HALF NAKED NOW!!!</p><i></i>

[jjs777]

my 95 sputters too - between 10.5 and 11k rpms I'd say<br><br>not sure why...but been doing it consistently<br><br>only noticable when I am in the upper gears wot <p><!--EZCODE ITALIC START--><em><!--EZCODE FONT START--><span style="color:steelblue;font-family:times new roman;font-size:medium;">-John </span><!--EZCODE FONT END--> <!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v485/ ... <!--EZCODE IMAGE END--><br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;"> <!--EZCODE LINK START--><a href="http://img.photobucket.com/albums/v206/ ... cement.jpg" target="top">1995 FZR1000</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--> <br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;"> <!--EZCODE LINK START--><a href="http://img.photobucket.com/albums/v206/ ... 00x600.jpg" target="top">1990 FZR1000</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--> <br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;"> <!--EZCODE LINK START--><a href="http://img.photobucket.com/albums/v206/ ... resize.jpg" target="top">1990 FZR1040</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--></em><!--EZCODE ITALIC END--></p><i></i>

[dragracer1951]

if it's only doing it in the upper gears....I'm gonna go out on a limb here and start thinkin iggy...<br>Start lookin at plug caps, wires, coils, I don't think trigger coils but won't rule them out.... <p>Jim <!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... Cheers.gif" style="border:0;"/><!--EZCODE IMAGE END--><br><br><!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v209/ ... states.gif" style="border:0;"/><!--EZCODE IMAGE END--><br>Hey Kid...Is my taillight working?</p><i></i>

[flyingcircus68]

I would say that if it's only noticable in the top end, it's probably fuel starvation. Redline in first gear is quick enough that a marginal condition would not show up. In the higher gears, the sustained high demand for fuel drops the fuel level to the point that it misfires from bieng lean.<!--EZCODE EMOTICON START :8 --><img src=http://www.ezboard.com/images/emoticons/nerd.gif ALT=":8"><!--EZCODE EMOTICON END--> <p></p><i></i>

[jjs777]

yeah my 95 symptom is usually when under sustained load in the upper gears <p><!--EZCODE ITALIC START--><em><!--EZCODE FONT START--><span style="color:steelblue;font-family:times new roman;font-size:medium;">-John </span><!--EZCODE FONT END--> <!--EZCODE IMAGE START--><img src="http://img.photobucket.com/albums/v485/ ... <!--EZCODE IMAGE END--><br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;"> <!--EZCODE LINK START--><a href="http://img.photobucket.com/albums/v206/ ... cement.jpg" target="top">1995 FZR1000</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--> <br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;"> <!--EZCODE LINK START--><a href="http://img.photobucket.com/albums/v206/ ... 00x600.jpg" target="top">1990 FZR1000</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--> <br><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;"> <!--EZCODE LINK START--><a href="http://img.photobucket.com/albums/v206/ ... resize.jpg" target="top">1990 FZR1040</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--></em><!--EZCODE ITALIC END--></p><i></i>

[barneyfzr600]

See, I knew there was a perfectly good explanation for the spluttering<!--EZCODE EMOTICON START :cheers --><img src=http://img.photobucket.com/albums/v209/ ... Cheers.gif ALT=":cheers"><!--EZCODE EMOTICON END--> <p><br>Freelance Bodyman<br><br>I be ridin the Cali Bay Area '88 & '89 FZR1K BOTH ARE ONLY HALF NAKED NOW!!!</p><i></i>

[IceCream Bandit]

Yeah I get the same on my 94 750, and now it's to the point I have to run on reserve all the time, I"nm thinking I should get at it pronto. <p></p><i></i>

[sentinel]

I had the exact problem and it turned out to be a bad petcock valve.