Why does my Harley Davidson keep backfiring and sputtering?

About 3-4 minutes of riding it was fine. After work, started bike and it did a half start and died, started up (hesitantly) 2ND time. warmed it up, rode 5 mins backfiring, spitting fire etc. Pulled over, called for a ride. Bought new plugs. When we pulled the plugs the gapping was wrong.

How to fix my Softail and Dyna Sportster?

Softail & Dyna Sportster Everyday Hog How-To Fix My Hog Projects M8 Cam Upgrade Cam Chain Tensioner Shoe Cam Gear Drive Conversion Carburetor Rebuild Electrical Systems Handlebars 101 Harley 5 Speed Transmission Project

When did my Wife’s Harley start to misfire?

My wife’s 2005 FLHTCUSE2 began to develop problems a few weeks ago. After a short ride, we stopped for her to get gas. On the way home, her Harley started to misfire and run poorly. I lost sight of her so I pulled over. After about 15 mins she showed up and said her bike would not stay running.

What was the problem with my Harley Davidson?

After about 15 mins she showed up and said her bike would not stay running. At each stop, it would stall but would always start after the fact. It died in the driveway. We tried to troubleshoot the problem but have been unsuccessful so far. Checked the fuel pump, getting gas, changed the plugs and checked the wires for leaks, no leaks.

Why does my Harley Davidson engine stall at idle?

If the battery will start the bike, it is not the reason the engine stalls at idle. You may have a dirty IAC (Intake Air Controller). They get gummed up and will cause stalliing, especially on a warm engine. There is self help tip on how to clean it. Sounds like intake leak if it wants to stall after warm up.

What happens to a Harley Davidson when it dies?

If it dies it will start right back up in neutral and then it will sputter a little bit while I “nurse” her back to my garage. It seems like “once the engine and oil gets hot then I have problems.

Why is my Harley CV carburetor stalling after tuning?

Hesitation or stalling can sometimes occur after tuning or rebuilding your Harley CV carburetor or if your Harley carb has not been maintained. The following are common issues sometimes encountered after tuning or rebuilding a Harley CV carburetor.

What makes a Harley Davidson engine sputter and cut out?

Sounds like water in float bowl or bad gas. Drain your float bowl. Try different gas. Change fuel filter. Check air filter.You might have a nest in there.

What does it mean when a Sportster backfires?

Ok, due to different terminology used by different people, I’m going to assume that by “backfire”, you mean it pops through the exhaust system when you back off the throttle.

What should I do if my Keihin bike keeps backfiring?

On the stock Keihin, you have to remove the float bowl. If its a carb. bike check the vacuum line that runs from the fuel petcock to the carb. Make sure it has a good connection on both ends . So, after cleaning the spark plugs and dumping in a can of HEET, the bike is running great. I really appreciate all your advice, everyone.

Why does my Softail Deluxe bike run weird?

Mine would do the exact same thing, its a 2007 softail deluxe. It turned out the battery to be the problem. The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again.

When do I hesitate on a Harley Davidson?

-If it starts to hesitate I accelerate and it goes away immediately till I let off and start cruising again. -I felt the hesitation every once in awhile about two weeks ago but not as bad till my 93 mile ride yesterday where it was VERY noticeable.

How to fix a Harley Davidson Softail Sportster?

Style and Performance Upgrades Milwaukee Eight Touring Softail & Dyna Sportster Everyday Hog How-To Fix My Hog Projects M8 Cam Upgrade Cam Chain Tensioner Shoe Cam Gear Drive Conversion Carburetor Rebuild Electrical Systems Handlebars 101

Do you need to remove baffels on a Harley?

Then when you have the cash buy the Dobeck EFI and you’ll really feel the difference . Harleys that run stright or drag pipes just don’t sound right , but yes they are lowd . Removing baffles only makes you think the bike is running better because it’s noisier.

Ok, due to different terminology used by different people, I’m going to assume that by “backfire”, you mean it pops through the exhaust system when you back off the throttle.

Why did my Harley Davidson battery start to misfire?

It turned out the battery to be the problem. The reason its intermittent is the bike will start running weird in other words it would take a charge but if for some reason that charge did not hold for long the bike will start running weird again. So I went and change the battery and I’ve never had the problem since.

Why does my Sportster backfire all the time?

Hi Anonymous, popping, coughing, spitting, or backfiring through the carburator or induction module is usually caused by air getting sucked in combustion chamber do bad intake seals leaking. Leaking exhaust gaskets can also be suspect.

What does backfiring mean on a Harley Davidson?

Real backfiring means the engine is not properly timed and the fuel/air mix is getting a spark and ignition at the wrong time (when the intake valve is open). Real backfiring is actually the bike “spitting up” in a sense, backwards through the carburetor or intake. So, the popping you are hearing is not back-firing.

Sounds like water in float bowl or bad gas. Drain your float bowl. Try different gas. Change fuel filter. Check air filter.You might have a nest in there.

What makes a Harley Davidson engine sputter at idle?

On the Evolution and later engines, the carb is designed as a “spigot seal” type carb. In other words, it just pushes into a seal instead of bolting on like the older carbs did. This means that the carb has to be aligned correctly or an air leak can occur around the seal.

What causes a coughing sound on a Harley Davidson?

I thought I’d pass along my findings: One of the most common problems that customers complain about is the spit-cough-pop from the carburetor as a Harley goes from idle to ¼ throttle.

Why does my Harley Davidson sputter at cruising speeds?

In other words, it just pushes into a seal instead of bolting on like the older carbs did. This means that the carb has to be aligned correctly or an air leak can occur around the seal. The air filter assembly is what holds the carb. into the seal and aligns the carb.

Why does my Harley Davidson engine choke out?

I have a sputtering problem once I get on the road. I have replaced the spark plugs, replaced the fuel and the bike starts right up with the choke out, then after a few I can push the chock in and it will idle.

What kind of gas do you use on a Harley Davidson?

If your bike doesn’t have a high compression motor that actually needs the octane, you’ll be better off buying mid grade or regular, as they will cycle through that stuff quicker than the premium. The gas station that I got the fuel from is a self service fuel station, that not too many people use.

What kind of spark plug does a Harley Davidson use?

Harley Davidson Spark Plug Fitment Chart Manufacturer Model Standard Plug Iridium Plug HARLEY-DAVIDSON BREAKOUT NGK DCPR7E NGK DCPR7EIX HARLEY-DAVIDSON BREAKOUT (EURO 4) NGK DCPR7E NGK DCPR7EIX HARLEY-DAVIDSON BREAKOUT PRO STREET HARLEY-DAVIDSON CVO ROAD GLIDE CUSTOM

Why is my spark plug black on my Harley Davidson?

Causes: The causes of this can be anything from, a rich fuel mixture, too much choke, long periods of low-speed riding or idling in traffic, a blocked air filter or the plug’s heat range is too cold. If the engine is running lean then the spark plug has a grey colour but you’ll probably see some black deposits on there too.

Is there a problem with my 05 Sportster?

I have a 05 sportster that misfires..intermittent..idling..stalling… Second opinion] Sounds like there is an issue when the rpms are low on the bike. Sounds like the engine misfires or skips … read more

What causes a Harley Davidson Sportster to misfire?

the mis is a lean mis-fire. it is a common Harley glitch due to the cam timing and intake flow with the siamesed intake. the front cylinder runs leaner (hotter) than the rear, but the rear cylinder has tendancy to have a lean mis-fire. with the engine at idle, spray carb cleaner on the intake seals.

What kind of engine does a 2005 Sportster have?

2005 CRF 450X starts and runs rough with choke on will not idle with choke off. Engine will rev with choke on when choke off pops and sputters exhaust pipe gets hot and will start turning red. New plu … read more I just bought an ”05 Sportster, but I can”t keep running when i”m stopped.

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