My bike has the hiccups

[kenward]

Hey guys, I just bought my first harley a 97, sportster 1200 custom. The bike is in mint shape with 20,000 miles. Has been stored in a basement all winter and started right up. I have put about 300 miles on the bike and love it. I changed the engine oil, primary fluid and installed new spark plugs. My ? is how typical is the cough or carb burp? Runs awsome when u crank on it all through the rev range. When cruising 5th gear 40-45 MPH it gets occasional hiccups. Slow cruising around town it does it also. I know some of this is expected, but how much and how often I wonder. The bike is stock with screaming eagle pipes. Idles good also.

[Scooter Trash KY]

If the baffles are out of the pipes you are going to get that a little bit. From the post I have read on here, it's really nothing to worry about. I had the same thing happening when I bought my 01 883 last year. I have since turned it into stage 1 and all of that went away, and the increase in performance was great. The total cost to stage 1 was about $150.00, well worth it. Hope that is of some help.

[kenward]

I am not sure if the baffles were taken out or not, but the screaming eagle stock pipes are kind of loud, not obnoxious but a nice rumble. I am curious as to how many others have had this or if it is indeed a harley thing. I wouldnt mind putting a few bucks in it to straighten it out though.

[MilwaukeeSportsFan]

I too have this same problem and am looking at how to fix it. I'll be sure to post if I figure something out

[kenward]

Yesterday I spoke with a local tuner who told me has had a lot of sportsters with the same problem and its most likely solved by re-jetting. Stated he uses the dynajet kit and it makes quite an improvement. Kit and labor qouted at $160. This guy has a good reputation with quality work and performance results so I will have him do it. Dam hes busy so I have to wait a week n a half, well least I can still ride it till then. What is actually Stage 1? is that a filter mod too as I have a K&N.

[Don Burton]

You might want to read around here for a bit before you decide to put a DynoJet kit in it. There are other alternatives.

[dragon62]

rejetted mine.....hiccups happen few and far between.....still occasionally farts....

[cantolina]

Well, 160 bucks is kinda steep for a ten dollar fix....

Dynojet kits.....well, we ALL know what I think of them...waste of money...

This is a tuning issue...no more, no less....

[jk883]

My 06 also burps, have taken it back to dealer 4 times and was told by the manager at the harley dealer that it was normal for a carb bike and I have a strong running bike, It seems to be less frequent the more I have rode the bike or maybe I have just got used to it, I decided to just leave it alone unless it becomes a real problem for me, the bike runs good, other then occasional hiccup

[Red Trex]

It sounds like you have not changed any jets. Have you or is your mixture adjustment screw drilled out so you can adjust it? It sounds to me like a small turn out of the adjustment screw would take care of your light throttle farts. I wouldn't jump to changing out the slow jet just yet...

Look up the jetting 101 thread to get acquainted with your carb.