Harley only one cylinder firing

Author: xogv

August undefined, 2024

WebOnly one cylinder firing I have a 2010 sportster forty eight converted back to a carb set up with an s&s super e shorty. Some time ago my bike would just shut off while riding every once in a while. So I’d pull over and start it back up and be on my way. No big deal I thought. WebNov 10, 2013 · Take the plugs out of both cylinders. Run a compression test on the rear cylinder. You need at least 100 PSI to get the cylinder to fire like it should. Next, put your plugs in the wires, (they should already be in the wiresand grounded) and spin the engine over. Watch for the plugs to spark,especially the rear plug.

Firing on one Cylinder V-Twin Forum

WebMar 10, 2008 · Check the firing of the spark plug wires to be sure the correct wire is firing the correct cylinder by using a flat screwdriver and with the ignition on place it over the gap in the rotating reluctor and lift quickly. WebJan 9, 2007 · As mentioned, most engines have a crankpin for each piston, a Harley as only one crankpin, shared by both pistons. That means the pistons go up and down ALMOST together. Because of the V shape of the engine, one piston will run ahead of the other by the angle of the V, 45 or 60 degrees. mount vernon wa va eye clinic

Why is My Bike Only Firing On One Cylinder? - TJ Brutal Customs

WebSep 14, 2024 · It would hardly Run after that because only one Cylinder was working.. Checked everything and finally decided to Tear the Engine down. Found a big gaping hole at the Valve Seat Seal on the Rear Cylinders Exhaust Valve. I found the hole by pouring Water into the Head then watched it come out the other side. WebLearn how to complete a Harley Davidson ignition coil test to make sure your coil is performing properly. WebApr 5, 2013 · Verify the cylinder is not firing by measuring the temperature on the exhaust right out of the cylinder. If it is not firing the tempature will be much cooler than the front … heart of the city episode 14

Onan running on one cylinder-why The RV Forum Community

Why do Harleys Sound Different and Idle Rough?

Web200 Shovelhead rear cylinder not firing right.. Checked timing, intake leaks, new plugs. Rear plugs black front plugs still silver with a little buildup. Checked pushrods all finger spin with no slop. When its cold both cylinders fire good once warm the rear seems to die off. WebMar 3, 2009 · If the compression is that low with another gauge, try soaking down the cylinder with a couple of ounces of Marvel Mystry oil, let it soak for 24 hrs or so, crank it over with the plugs out, put them back and try to get it to run, then check copression again. Marvel is great for stuck rings. silentflyer, Mar 3, 2009 #7 jel123 Active Member 157 26 0 heart of the city comic katWebApr 17, 2005 · The super was sputtering and running on one cylinder! What's weird is that it would run on one then both then one.. I limped it home like that. At times it would clear up and run great and I thought it was all better, we stopped and got some food and when we left to finish home it was bad again. mount vernon wa tulip festival

"Apr 22, 2008 · " - Harley only one cylinder firing

Harley only one cylinder firing

running on one cylinder!! - V-Twin Forum

WebHave you had an issue where your Harley started to Misfire? Check out our Member Q&A for a solution to the problem. WebJan 7, 2024 · Rule Out Fueling Issues When you first notice your bike is only running on one cylinder or afterfiring badly from one cylinder , you will want to make sure that the …

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WebOct 21, 2024 · Must confirm spark to bad cylinder and make sure it is in fact not firing at all. It's possible it is firing but poorly. Compression looks good. Probably an electrical issue. Replace both plugs with new. Replace air cleaner with new. Swap parts around to see if they work on the other cylinder. WebJan 9, 2007 · As mentioned, most engines have a crankpin for each piston, a Harley as only one crankpin, shared by both pistons. That means the pistons go up and down …

WebApr 23, 2010 · Switch the plug wires AT THE COIL and see if that makes a difference. If it does, then you have a bad wire, or a bad coil. Test the coil. http://www.harley … WebJul 21, 2011 · Fire it up and wiggle injector wires. Might find that rear cylinder might come back, or come and go. Easy enough to beep out (with an ohm meter), once you gain access to injector wires, and ECM plug. Note: one wire to each injector does not come from ECM, but from 12V supply. You will need a schematic for your scoot. Enjoy, Rich P

WebThe difference in the Harley engine is that the crankshaft has only one pin, and both pistons connect to it. This design, combined with the V arrangement of the cylinders, means that the pistons cannot fire at even … http://xlforum.net/forums/archive/index.php/t-175598.html

WebMay 8, 2015 · My Harley Davidson heritage softail has an annoying backfire from the rear cylinder when I let off the throttle on the freeway or when I'm coming to a light. I just had the top end rebuilt completely rings valves heads refaced etc plugs are new exhaust system is tight no leaks. Now the bike is only 4 years old but I do have 99k on the motor..

WebAug 22, 2010 · Run the bike again, and get the test light. Ground the clip, and place the test-tip on the rear (wiring) of both plug terminals i.e. the top and the bottom. The test light should flicker on and off like a Spanish disco i.e. the module is triggering the firing cycle. If you get no light or constant light at either terminal, the module is toast. mount vernon wa walking trailsWebApr 11, 2024 · 7 Rather Buy: Harley-Davidson Ultra Limited. Harley-Davidson. 2024 Harley-Davidson Ultra Glide Limited. What Harley-Davidson doesn’t know about building touring motorcycles with every ingredient ... heart of the city festivalWebRear cylinder not firing This is an intermittant problem but is occurring more regularly now. Happens when engine is hot and when engine is cold. 96 Harley FXDL, Crane hi 4 single fire ignition, 12.53 volts measured at battery terminals, all electrical connections checked for tightness and cleaned. mount vernon wa yard wasteWebApr 22, 2008 · If it's only running on one cylinder than it could be an intake leak, a hung open or stuck closed valve, a fouled plug, or low compression on that cylinder. If it's electrical it could be a bad ground, a bad coil, any one of the wires in the ignition system, the ignition itself or other compounded issues. heart of the city health center faxWebAug 30, 2024 · If you are running single fire, you can run a jumper wire from the front cylinder neg terminal to the rear cylinder neg terminal, remove the rear cylinder wire that goes to the ignition module and then switch the ingnition module to dual fire. If you saved your factory ignition module, plug it in and give it a try. mount vernon wa walmart shootingWebIt runs like its only hitting on one Evo cylinder sometime. Need Help. My 1988 Springer Softail has had a problem over 5 years, always the same thing. It runs like its only hitting on one Evo cylinder sometime. ... heart of the city health centerWebMay 27, 2010 · The S50, like all Intruders, need a good carburetor sync, even from the factory. Before it gets too hot, you can feel the cylinder heads, opposite the header side, … mount vernon wa tulip fields