Motorcycle Carbs 101

[djalbin]

Since there is always questions regarding carburator ... here's a link to help explain the operation of motorcycle carburetors.<br>It has all the basics ... Motorcycle Cabs 101<br><br><!--EZCODE LINK START--><a href="http://auto.howstuffworks.com/framed.ht ... rb101.html" target="top">auto.howstuffworks.com/framed.htm?parent=question377.htm&url=http://204.71.0.3/motoprof/moto/mcycle/ ... <!--EZCODE LINK END--><br><br>Don <p></p><i></i>

[FZRDude]

Very comprehensive, and easy to understand. <p>Tim<br><!--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;"> Has anyone seen my keys?</span><!--EZCODE FONT END--></em><!--EZCODE ITALIC END--><br><!--EZCODE ITALIC START--><em><!--EZCODE FONT START--><span style="color:white;font-family:times new roman;font-size:small;">Dir. of Entertainment<!--EZCODE LINK START--><a href="http://eddieandthecruisersmc.com" target="top"> Eddie & the Cruisers</a><!--EZCODE LINK END--></span><!--EZCODE FONT END--></em><!--EZCODE ITALIC END--><br><!--EZCODE ITALIC START--><em><!--EZCODE FONT START--><span style="color:blue;font-family:times new roman;font-size:small;">'94 FZR 1000</span><!--EZCODE FONT END--></em><!--EZCODE ITALIC END--></p><i></i>

[flyingcircus68]

The site is a great tutorial on how a carb works and for the most part can be applied to street engines. The tutorial deals with motocross carbs specifically and these are somwhat simpler than the CV carbs on street bikes. The only thing to consider is that the throttle position is not directly linked to a specific circuit on a CV carb. What I mean by this is that the specific circuit that is controlling the fuel mixture depends on the air demand. This means that both the throttle position and rpm need to be considered when tuning, and not just throttle position alone.<!--EZCODE EMOTICON START :hat --><img src=http://www.ezboard.com/images/emoticons/pimp.gif ALT=":hat"><!--EZCODE EMOTICON END--> <p></p><i></i>

[Androooooo]

flyingcircus68 - i noticed that it wasnt for road bikes because they say things like "do a full throttle run and pull over and check spark plugs", which is rather inconvenient...<br><br>do you know of any similar docs for road bikes? <p></p><i></i>

[ChuckD]

The roadside test can be done on a FZR 1000, just with CAUTION. To get the BEST jetting on one once, I pulled the fairings off, let er rip up top and shut it off and roll to a stop. Then I proceeded to burn the ever living $h!t out of myself getting the plugs out. Did I get em, well almost all of them. <br>Point being, it can be done. Now needless to say, I have pretty much got the FZR w/ EXUP down to a science when it comes to jetting. The funny part as you all know, stock jetting is right on. Needles are so easy to mess with to get right, Needle jet tubes(emulsion tubes); well you know, and float level, dead on or 1mm lower if needed. Sit back and ride on, it doesn't get much simplier than that.<br><br>CHUCK D. <p></p><i>Edited by: <A HREF=http://p072.ezboard.com/bexupbrotherhoo ... hood>Chuck D</A> at: 10/15/04 8:50 am<br></i>

[flyingcircus68]

HTML Comments are not allowed <p></p><i></i>

[flyingcircus68]

I just want to say that the above is not my statement, nor do I endorse the view point it conveys. For the record, I'm very open to any comments about HTML and I fee that we should switch the topic of this thread to give HTML the respect that is long overdue.<!--EZCODE EMOTICON START :hijack --><img src=http://img.photobucket.com/albums/v209/ ... thread.gif ALT=":hijack"><!--EZCODE EMOTICON END--> <br><br>I really attempted to say that I've done the road side plug check also. <p></p><i></i>

[jjs777]

no comment <p>-John<br>95 FZR1000<br>90 FZR1000</p><i></i>