Fuel pump - Page 4 - ArcticChat.com - Arctic Cat Forum

LinkBack Thread Tools Display Modes
post #31 of 35 Old 11-22-2008, 06:56 PM
Senior Member
Danzig's Avatar
Senior Member
Join Date: Dec 2006
Location: Van Orin, Illinois
Posts: 2,429
Thanks: 18
Thanked 5 Times in 5 Posts
Sled: ALOT
10-11 Mileage: 500
09-10 Mileage: 10
08-09 Mileage: 500
07-08 Mileage: 500
06-07 Mileage: 50
I am not a fuel pump expert either, but the fuel pump has diaphrams in it that move when the pulse line pushes air into it, thus causing the diaphrams to move causing the pumping action.

1996 Arctic Cat ZRT800
1995 Arctic Cat ZR 580
1993 Arctic Cat Thundercat 900 L/C x2
1992 Arctic Cat Cougar 440 L/C
1987 Arctic Cat Jag 440 F/A
1980 John Deere Liquifire 440 x2
1979 Arctic Cat El Tigre 5000 x2
1978 Arctic Cat El Tigre 5000
1978 Arctic Cat Pantera 500 F/A
1977 Arctic Cat Jag 3000 340 F/A
1973 John Deere JDX8 440 Fan
1973 Arctic Cat Cheetah 440
1973 Arctic Cat Cheetah 340

"Gotta Lick It Before You Stick It"

Danzig is offline  
Sponsored Links
post #32 of 35 Old 11-22-2008, 07:17 PM
Senior Member
kev's Avatar
Senior Member
Join Date: Aug 2005
Location: Georgetown, ON Canada
Posts: 6,647
Thanks: 121
Thanked 216 Times in 212 Posts
Sled: 95 ZRT 800 AGLT, 92 Jag 440, 14 XF9000
10-11 Mileage: 800
09-10 Mileage: 679
08-09 Mileage: 1000
07-08 Mileage: 1600
06-07 Mileage: 728
ATV: 50cc
<div class='quotetop'>QUOTE (BSH-PQR @ Nov 22 2008, 07:45 PM) <{POST_SNAPBACK}></div>
<div class='quotetop'>QUOTE
If you take the lines off the carbs and try to pump into a tin can you can quickly eliminate the pump being the problem. Just because fuel isn't going into the carb, the problem can still be in the carb.[/b]
It does not need to be hooked up to the carb? The impulse line pushes air into the fuel pump, and the suck from the carbs creates the pull. Creating a vacuum????? I am sure I am wrong, but I thought that is who it works.
As far as I know the fuel pump just pushes.
I did this on a 87 yamaha I got for free. Sitting a few years out on the rocks, and a few animals made a home of it, the carb was plugged solid. I took the fuel line off the carb and had no problem pumping fuel into a can. I knew my problem was in the carbs, and it turned out it was.
kev is offline  
post #33 of 35 Old 11-23-2008, 10:26 AM Thread Starter
Join Date: Oct 2008
Location: Rochester
Posts: 87
Thanks: 0
Thanked 0 Times in 0 Posts
Sled: 02 mxz 500, 2 79 Jags
07-08 Mileage: 600
ATV: na
Gas pumps into a can. THANKS. Not the fuel pump.

Here is the problem> Took the carbs off this morning. Everthing was pluged with some green sludge. Piolt jet as well as the piston valve and needle. All the brass was caked with it as well. ?????? One side was worse that the other. I have them soaking right now.

I just cleaned them. Any thoughts? Bad gas? Another culprit> I (like and idiot) put a screen over the weight on the end of gas line in the tank. When I took the line out yesterday it was deteriating and green. Thinking about it, I would assume that the fuel filter would block small piece, but could the broke down metal be mineralized so as to pass thru the filter in the gas>then built up on the parts in the carb?
BSH-PQR is offline  
Sponsored Links
post #34 of 35 Old 11-23-2008, 08:01 PM Thread Starter
Join Date: Oct 2008
Location: Rochester
Posts: 87
Thanks: 0
Thanked 0 Times in 0 Posts
Sled: 02 mxz 500, 2 79 Jags
07-08 Mileage: 600
ATV: na
Cleaned carbs. 10 pulls, started right up. Thanks for all the chat.

Still wondering about the green build up.(See above post).

Thanks again.
BSH-PQR is offline  
post #35 of 35 Old 11-23-2008, 08:38 PM
C-note's Avatar
ArcticChat.com Admin
Join Date: Dec 2005
Location: Mi.
Posts: 10,465
Thanks: 1,742
Thanked 904 Times in 788 Posts
07-08 Mileage: 2 few
06-07 Mileage: ^^^^
green buildup is/was fuel varnish in mid to 3/4 development stages, hopefully you got all of it out of your jets or else severe piston/cylinder damage can (will) more than likely result,, if it feels flat under full throttle pass,, do not continue to run until having it professionally done or going out and getting some Hydroseal II to soak all jets in to loosen and flush out varnish rest of way

Trigger finger's getting itchy, so don't entice me....

If it's cnote approved it will work good
Originally Posted by DonoBBD View Post
That is freeking sick man........
0637-185: '99 Sno-Pro APV (guide and button) update kit p/n...
0637-186: '99 Sno-Pro APV superseded valve inserts update kit p/n...

"Arctic Chat is not affiliated with Arctic Cat Inc. in any way, shape or form. We are an enthusiast site run by fans."

(Are you experiencing issues with your local dealer? Feel free to call Cat Consumer Complaint @ 218-681-8558)
C-note is offline  

  Lower Navigation
Go Back   ArcticChat.com - Arctic Cat Forum > Snowmobiles > Arctic Cat Snowmobiles > Z/ZL/ZR/ZRT/Tcat/EXT/jag/cougar

Quick Reply

Register Now

In order to be able to post messages on the ArcticChat.com - Arctic Cat Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome