Engine races
Thread Starter
|
HDF Community Team
Joined: Jan 2010
Posts: 1,250
Likes: 461
From: shore of Gitche Gumee
Engine races
2008 Sportster 1200: Today while on a ride, the engine began to race, like ~1500-2000rpm with the throttle closed. I shut the engine off and re-started it, but the condition persisted. Later on, the rpms settled down to a reasonable speed. Any ideas? Thank you! (Has anyone installed a Barons Brand Tach on their Custom, and is it difficult to wire?) Thanks again.
Last edited by hammer6315; Oct 20, 2023 at 06:37 PM. Reason: clarity
HDF Community Team
Joined: Dec 2011
Posts: 8,483
Likes: 3,875
From: San Diego, CA
Idle Air Controller? That would cause a hanging idle. Maybe take it out and clean it. An old GF had a Honda that had a constantly fluctuating idle, after cleaning the IAC, no more problems. Check for any codes afterward?
John
John
Seasoned HDF Member
Joined: Nov 2006
Posts: 20,977
Likes: 19,072
From: The Wasteland
OP, check you tube. Theres probably tons of videos to walk you through it.
Thread Starter
|
HDF Community Team
Joined: Jan 2010
Posts: 1,250
Likes: 461
From: shore of Gitche Gumee
After some research, think I'll load check the battery, and the charging voltage. Then delete the code and see if'n it returns.
Trending Topics
Road Warrior
Joined: May 2017
Posts: 1,961
Likes: 1,577
From: Scottish Highlands.
It's perfectly normal for EFI Sportsters to have a fast tick over from a cold start, my 2011 XL883N starts at 2000rpm from cold, after about three minutes it settles down to a regular 1000rpm.
This is the first time I've heard of a Sportster tick over racing when the motor is at working temperature, good luck curing your problem.
This is the first time I've heard of a Sportster tick over racing when the motor is at working temperature, good luck curing your problem.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider
Verdad Gallardo
Thread
Thread Starter
Forum
Replies
Last Post
hunter28x
Engine Mechanical Topics
0
Jul 16, 2014 07:55 PM