G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Motorcycle Forum » Old School Buell » Archive through July 01, 2009 » Buell/Sportster Engine Lagging/Hicuping/Missing? « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Sfmc_x1
Posted on Tuesday, June 30, 2009 - 02:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

2000 X1 26,000 miles

Over the past few months I've notice my motor misses or hic-cups in regular traffic... 1st to 2nd/2nd to 3rd gears low rpm to quick acceleration. Only happens when I'm loading up on the throttle. Example: leaving a stop light or entering a freeway. The drive belt tension is correct, so I'm ruleing out belt slip, plug wires are conected at the plugs and coil, so I dont thinks its ignition. I dont think its clutch slip, because this feels more like a stutter, than a lack of engangement from a fried clutch.

Really miffed about this one because a friend (HD Tech) said this is an occurance that happens with Old Buells and Sporty's. He doesnt know why... it just does, and there's nothing wrong?

Anybody have a remedy or know something different?
Top of pagePrevious messageNext messageBottom of page Link to this message

Shadowracerx1
Posted on Tuesday, June 30, 2009 - 02:33 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Last time I had this issue an air filter change cleared it up for me.
Top of pagePrevious messageNext messageBottom of page Link to this message

Preybird1
Posted on Tuesday, June 30, 2009 - 02:34 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Intake leaks or sensors going out. Head temp sensor is a problem sensor. Most of the time when you upgrade the exhaust or intake with the factory ECM you will have these problems. If the bike is stock and doing this i would look at intake seals, throttle body seal and injector seals, o-rings. Even the exhaust gasket's and possibly o2 sensor is going out.

The intake seals should be changed out every 2 years.
Top of pagePrevious messageNext messageBottom of page Link to this message

Pkforbes87
Posted on Tuesday, June 30, 2009 - 02:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Mine runs great but bucks around a lot under 3k rpm.. If there is a solution I sure haven't found it.

Simple fix: don't ride below 3k rpm.
Top of pagePrevious messageNext messageBottom of page Link to this message

Sfmc_x1
Posted on Tuesday, June 30, 2009 - 02:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Dont ride below 3K rpm...

I like that.

I freshened up the air filter two weeks ago, issue was there before and after???

I had some repairs done to the front head when I had to fish broken bolts out from the head/front motor mount. I replaced the intake(and throtle body, and injector) seals then, that was last fall. The bike always returns to idle as it should, so I dont suspect the intake, but I will spray some chemical and double check for a leak.

The bike does have the CF race ham/can air cleaner, I bounced back and forth from a stock header/wilyco exhaust combo to a Kooks/D&D combo. Stock ECM. This issue reared its head when I still had the wilyco set-up, so...?

If its sensors, guess I should hope it is, I'll run the VDSTS on it?
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a private posting area. Only registered users and custodians may post messages here.
Password:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration