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Symptoms it time to "service carb'

 
  #1  
Old Yesterday, 11:10 AM
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Default Symptoms it time to "service carb'

Both of my bikes are 2005's,(Dyna , Sportster) so 14 years on the carbs. My question is, what are symptoms its time to disassemble and clean/rebuild a CV carburetor? is it responsiveness?, Miles per gallon?. I don't really notice any performance issues, but my 883 seemed to have a bit more responsiveness years back, it seems like a not really noticeable "performance" issue has crept up, in terms of responsiveness. By responsiveness, I mean 0-60 time , acceleration etc, seems slower. I know, its an 883, but it has a defined 0-60 time, and now it seems to be a dog. Maybe I am used to the 883 power? is that possible?
 
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Old Yesterday, 11:49 AM
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well, a #1 killer of performance is loss of compression, even a few pounds can make a diff.
my 01 sport still kicking on the same carb.
even if only one cylinder is off a tad will bring it down.
anything mechanical is subject to wear.
 
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Old Yesterday, 12:32 PM
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Originally Posted by bustert View Post
well, a #1 killer of performance is loss of compression, even a few pounds can make a diff.
my 01 sport still kicking on the same carb.
even if only one cylinder is off a tad will bring it down.
anything mechanical is subject to wear.
Ill have to check it out, I have the compression tester, if it was to need a top end, i would do the 1200 swap Im thinking.
 
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Old Today, 07:00 AM
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Man, isn't much going ion on the "tech' side of this forum, at least not in the carburetor dept. To the fella who said "compression" thanks, but I know the bike has compression by listening to it crank over, that and it has relatively low 15 thousand miles. Also, one would approach the "easy " thing first, not go after engine internals when they can clean the gunk out of the carb easily and affordably, now, I am going to consider tuning the bike myself, ( most likely the CV performance carb upgrades) as I have the equipment to work carburetors, vacuum guages etc, only thing I am seeing that I can't do is ajust timing, which I think the 2003 models were the last year for that. I may (or may not ) keep ya posted. No promises...P.S. I do have a service manual
 

Last edited by Super Glidester; Today at 07:01 AM.
  #5  
Old Today, 09:03 AM
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yep, i can do a wheelie on my schwin because i know i got power in my legs. but hummm, age does affect how far i can go.
butt dyno is good but the numbers are always skewed.
carb issues can creep up but there are signs. i never hurts to freshen up anything so rebuild it.
sportsters can be temperamental, one day run like a scalded dog and the next a three year old on a tricycle will out run it as atmospheric conditions effect power.
my 01 will turn 60 mph in first, pull the wheel up with a slam to second and when i drop 3rd, no speedo left. carb never touched other than jetting, many more miles than yours.
 
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Old Today, 12:40 PM
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Yeah, Yeah, Yeah.....
 

Last edited by Super Glidester; Today at 12:54 PM.
  #7  
Old Today, 12:59 PM
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too bad you cannot put this in the sportster, a real hoot
http://www.twistgear.net/page%20html/sportgear.html

shift points are higher on mine, rev limit 7.5k
surprises a lot of rice, not on take off but sailing down the road. running 5k is the speedo limit 120mph. sometimes i will make a 50 mile run so done in short order!
stock, hardly!
 

Last edited by bustert; Today at 01:05 PM.
 


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