Fatboy won't start
Thread Starter
|
Novice
Joined: Mar 2010
Posts: 15
Likes: 0
From: Texas
Fatboy won't start
Bike won't start. Backfires out exhaust. I've put fresh gas, cleaned carb, new plugs, swapped out ignition module and coil. Still not starting. Has good fire. Cams are in time. swapped out crank position sensor. still backfires. any suggestions?
Seasoned HDF Member
Joined: Nov 2009
Posts: 15,705
Likes: 22,718
From: Farmington ,MS
Remove the air filter and look down the carb throat and see if it squirts gas when you twist the throttle. Could be the gas petcock is clogged up. If it is getting gas and spark it is time for a compression test. This will help you determine if the cams really are in time, or if you have a valve stuck open. Good Luck.
Intermediate
Joined: Nov 2009
Posts: 48
Likes: 0
From: Minnesota
Just curious, is this the first start after a long winters slumber in storage? If so, did you use a fuel stabilizer?
Just trying to get the whole story and big picture.
Just trying to get the whole story and big picture.
Trending Topics
Thread Starter
|
Novice
Joined: Mar 2010
Posts: 15
Likes: 0
From: Texas
I have new plugwires. Cleaned carb and am getting fuel to it. Checked choke and getting fuel through carb. Was ridden two weeks prior. I have not done compression check yet. Thanks for the help.
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
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
Novice
Joined: Feb 2010
Posts: 24
Likes: 1
From: Edmonds, WA
Although it seems complicated a motor has to have compression, ignition, gas & air and exhaust at the right timing, if you have all that it has to run!
My guess is the carb isn't getting the air it needs.
Pull the carb and blow all the ports out and I'll bet you'll be back on the road.
My guess is the carb isn't getting the air it needs.
Pull the carb and blow all the ports out and I'll bet you'll be back on the road.