EVO All Evo Model Discussion

98 Evo Carb Problem

Thread Tools
 
Search this Thread
 
  #1  
Old 11-20-2010 | 11:05 PM
moblmowr's Avatar
moblmowr
Thread Starter
|
Cruiser
Joined: Feb 2008
Posts: 123
Likes: 0
From:
Default 98 Evo Carb Problem

I have a 98 Lowrider and my carb has started dumping gas out the overflow tube when its running. I have taken the carb off twice, took it apart, checked the float level, did everything my manual says to do, and can't find any thing wrong. Has anybody had this happen and what did you do to fix it. With diesel going up again, I really need my bike.
 
  #2  
Old 11-20-2010 | 11:22 PM
the blob's Avatar
the blob
Road Warrior
Joined: Sep 2006
Posts: 1,570
Likes: 45
Default

id ck the float valve needle assmb. theres a rubber seal that goes bad and causes gas to overflow. its that ethonol **** gas that eats away our rubber parts!!
 
  #3  
Old 11-21-2010 | 06:22 AM
95 Ultra's Avatar
95 Ultra
Tourer
Joined: Aug 2009
Posts: 359
Likes: 2
From: central Mississippi
Default

Also check the two "ears" that hold the float on, that the little pin slips in to. Over time, from the vibration, one of them can crack or get wallowed out, causing the float to wobble around while riding. This can cause the overflow your getting. It happened to me.
 
  #4  
Old 11-21-2010 | 08:16 AM
miacycles's Avatar
miacycles
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 11
From: Bluffton, South Carolina
Default

Both of the above tips are great, but don't forget to check the float as some times they leak. Be sure that thye float level is spot on.
 
  #5  
Old 11-21-2010 | 04:38 PM
Doug S's Avatar
Doug S
Road Master
Joined: Apr 2009
Posts: 1,119
Likes: 34
From: NJ
Default

Mine did it this spring, everything looked good so I cleaned it all and put it back on..still leaked. Took it apart again and looked at the float needle under a strong magnifing glass, it had wear marks in the metal "wings" that act as guides when it goes up and down. Took some croakas cloth and polished them, no more issues. I recomend replacing the thing -(needle)- but I like to tinker and figure things out, my wife says I'm just cheap...LOL

D
 
  #6  
Old 11-21-2010 | 06:58 PM
IronGear's Avatar
IronGear
Tourer
Joined: Apr 2010
Posts: 293
Likes: 7
Default

Check fuel tank is correctly venting.
 
  #7  
Old 11-23-2010 | 11:15 PM
hatchetman's Avatar
hatchetman
Road Warrior
Joined: Nov 2008
Posts: 1,595
Likes: 8
From: Vancouver Island British Colombia Canada
Default

Originally Posted by IronGear
Check fuel tank is correctly venting.
Yup, mine poured out gas because my gas cap quit venting. I drilled a hole in it & no more gas issues!
 
  #8  
Old 12-06-2010 | 11:21 AM
head's Avatar
head
Road Captain
Joined: Jul 2010
Posts: 527
Likes: 25
Default

also had a problem with my 98 carbed evo doing the same thing. it was also the gas cap here as well.

head
 
  #9  
Old 12-06-2010 | 02:48 PM
JohnnyC's Avatar
JohnnyC
Outstanding HDF Member
Joined: Oct 2010
Posts: 2,706
Likes: 9
From: Near Frankenmuth, MI
Default

Tank should have a small breather tube leading to the ground. You would be amazed at how many of these get enough debris lodged at the end to stop the flow. Also they are soft and collapse, then you have to replace it.

Could still be the needle valve or float itself.
 
  #10  
Old 12-14-2010 | 07:28 PM
drjones's Avatar
drjones
Cruiser
Joined: Dec 2009
Posts: 181
Likes: 0
Default

Remove the float needle valve and blow it out. It may have some dirt in it. good luck, TJ
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jdl2430
Carburetor Related
5
05-13-2015 09:44 PM
randybecker
Sportster Models
1
09-14-2011 11:29 PM
JohnFlorida
Exhaust System Topics
5
04-26-2011 02:33 PM
SpiderPig
Touring Models
2
06-28-2010 10:43 PM
BUSTERK
Exhaust System Topics
1
09-16-2009 09:50 PM



Quick Reply: 98 Evo Carb Problem



All times are GMT -5. The time now is 09:27 PM.