What is the correct timing on a 1980 harley davidson flt with. Connect a timing light to the front cylinder plug wire. The motor has always had a bad rep, probably because it was the motor that amf bought when it bought the company in 1974. They were a good motorcycle that out lasted the sale of hd to amf company in the early 70s and went on to be repurchased by the employees and brought back to the leaders in the heavy weight motorcycle class. Remove the spark plugs, the timing port plug on the left side of the engine. Timing hole and oil tank plugs clear view timing hole plug the best see thru timing plug you can buy. Available in a hex and nonhex design a simply yet effective tool to properly time your harley motor. Use this mark to set the timing with a timing light as described below. Im sure i got lucky, as i know nothing abou harleys, yet.
Harley shovelhead parts as the imports of highly competitive foreign cruisers grew, the panhead began having a hard time competing. What is the correct timing on a 1980 harley davidson flt. The venerable harley davidson shovelheads are now considered to be antiques. This will cause the ignition to advance 35 degrees by 1500 rpm. View and download dozens of harley davidson wiring diagrams and manuals for shovelheads, sportsters, and softail motorcycles. To set the 2000i timing dynamically with the engine running, use the following procedure. Most likely you have knowledge that, people have see numerous period for their favorite. Installation instructions for harley davidson 40cc shovelhead top view of piston. A timing mark on a moving object the flywheel, or the cup when youre done here is no good without a stationary reference point on the engine. The matching breather gear has a slash mark l to identify its timing position. How to install a points style ignition and do static timing on a shovelhead motor years 19701984. Run the engine at normal operating temperature at 2,000 rpm.
Timing refers to the amount of time that occurs between the spark plug. Timing a shovelhead, help the jockey journal board. A all timing adjustments should be made using the advance timing marks on the. They said it should fit all models, and it said so on the package. The rate at which the timing increases is called the advance curve. Build the ultimate in a stock bike engine or how to get 64hp from your 40 evolution engine. Recheck timing and adjust as necessary using the above procedure until proper timing is verified. Thank you certainly much for downloading timing a shovelhead engine. A typical points set for a shovelhead goes from idle to fully advanced by about 1,800 to 2,000 rpm.
Refer to a factory shop manual to determine the timing mark for your particular engine. When the timing is not correct, the engine can fail. Temporarily remove the stock timing plug and insert this topquality tool for easy timing. Dyna 2000ip reprogrammable digital ignition system for. We are not an authorized harley dealer and in no way do we have, or intend to imply any kind of business relationship with harley davidson motor company. There is a braided metal line about 68 long with a small filter on the end of it. Clear hex timing plug sight window fits all harley. B all timing adjustments should be made using the advance timing mark on the flywheel. The narrow lobe of the point cam is for the front cylinder. The icm computes ignition timing advance and coil dwell. The feed line can be moved by removing the plug at the bottom of the outer. Harley davidson shovelhead points installation and timing.
Under these conditions minimum piston clearances may not be sufficient. Clear timing plug for sportster panhead flathead shovel ebay. Setting the timing on a 1978 shovelhead harley davidson. Clear hex timing plug sight window fits all harley models harley engine motor timing tool evo sportster knucklehead shovelhead panhead motorcycle chopper bobber 4. Maybe im missing something, but it looks like when the flywheel goes around, the rear cylinder is the first one to go tdc and fire, followed shortly by the front cylinder. Pistons used for racing or special applications may require additional clearances. Ironhead timing question a timing mark view plug tests engine timing. The moco engineers recognized this and what came next was the harley shovelhead in 1966. The first mark to come up is the front cylinder advance mark and the next one will be the tdc front mark. Check to make sure that no wires are in contact with the rotor. I quit timing by marks years ago and time by ear and performance instead. In the case of the normal way to time your engine that reference mark is not really a mark, it is the hole in the left engine case you center the timing mark in that hole.
Rotate the ignition to cause the status led to turn off and on. Timing inspection plug bobber, chopper, choppers, harley. Its matching pinion gear has teeth across the full width of the pinion gear body. Setting the ignition points and spark timing on a flathead, knucklehead, panhead or shovelhead harley with a manual advance distributor. But, the issue is that when i put the acrylic view plug in the hole and fire her up, i get a wash of oil over the window and obstucting the view of the marks.
The first generation shovelhead from 1966 through 1969 was actually the same engine as the panhead engine that it replaced, except for the updated cylinder heads. If so should my points be just before opening at this mark. Remove the crank case timing hole plug and replace it with a transparent timing mark view plug. The term shovelhead refers to a harley davidson bigtwin engine that was produced from circa 1966 to 1984. As you can see, both tanks have an internal return line that goes to.
Timing can be set using a strobe timing light with a transparent timing mark view plug. The name shovel comes from the coal shovellike shape of the engine covers. Refer to a factory shop manual to determine the timing. The term shovelhead refers to a harleydavidson bigtwin engine that was. The magneto produces a high voltage discharge to the spark plug which is timed to. Remove the crank case timing hole plug and replace it with a transparent timing mark view plug connect a strobe timing light to the front cylinder spark plug. Rather than enjoying a good pdf later than a mug of coffee in the afternoon, then. Step 1 insert the thread timing mark view plug in the timing inspection hole. May 21, 2007 isnt there a plug just below the crotch of the cylinders on one side or the other of the crankcase. B all timing adjustments should be made using the advance timing marks on the flywheel. The f mark stands for front cylinder 30 before top dead center tdc.
Setting the timing on a 1978 shovelhead harley davidson forums. Clear round timing plugs assist in the proper timing of your harley motor. The late 1977 through 1984 nonevolution engines used a cam gear with a curved tooth. Rotate the ignition plate clockwise or counterclockwise as appropriate until the front. Installation instructions for harleydavidson 40cc shovelhead. Be careful to not overcrank the timing plug as you run the risk of cracking it. Remove the front intake push rod cover so that the opening and the closing of the valve may be observed. Connect a strobe timing light to the front cylinder spark plug. These boxes bared resemblance to a coal shovel, hence the.
Consult an appropriate service manual for your motorcycle for correct. So, what they do now is run the engine at around 2,500 rpm, adjusting the timing by reference to power output until it is just right. Some hd part numbers are also used as reference only. Now most of the timing instructions ive read, they only deal with the front cylinder tdc mark and front cylinder advance mark. A shovelhead engine is a vtwin harley davidson engine that was produced from 1966 to 1985. Timing refers to the amount of time that occurs between the spark plug sparking and the fuel in. Check for proper rpm and ignition timing as follows. Ignitiontunerecmfuel injection 74 shovelhead timing window help. If the shop manual is not available, remove spark plugs. This engine brought back rocker boxes instead of valve covers. Removing the spark plugs will make it easier to turn the crank. Which mark you use depends on what ignition you have. With the bike in high gear turn the rear wheel to get the crankshaft to top dead center on the compression stroke of the front cylinder tdc mark aligned in the inspection hole. Setting ignition timing on your harley davidson engine.
Electrical tools knucklehead panhead shovelhead 3684. The front cylinder advance mark is a vertical line and the front tdc mark is a shallow drilled hole just less than 18 diameter. How to set the timing on shovelhead points it still runs. Important this ultima ignition requires the gold colored timing rotor. Buy clear hex timing plug sight window fits all harley models harley engine motor timing tool evo sportster knucklehead shovelhead panhead motorcycle chopper bobber. Bring the engine around untill i can see the circle in the timing inspection hole. The hd shovelhead motor went out of production in 1984. Then view through the timing hole while continuing to rotate slowly. This avoids the confusion of what harley did with the marks which is a really bad joke. Over 1600 engineered kits for hd models from 1911 to present. How to set the points and timing on an old harley davidson big twin.
You pull that plug shine your timing light in the hole and adjust your timing plate andor point gap till the mark ends up in the middle of the hole. Ultima parts are designed exclusively for use in harley davidson type motorcycles. Plug wires magnecor screamin eagle accel stage 1 modificationsstage 1 modifications build a 64 horsepower 40 evolution engine performance and technical information on basic modifications to a stock harley davidson 40 evolution motorcycle engine. But is the bad reputation of the shovelhead deserved. Improper timing, and abusive operating conditions can cause higher than normal piston temperatures. Harley and harley davidson and other model names of harley motorcycles are used as a reference only. Timing can be set using a strobe timing light with a tra. Aug 29, 20 i bought a clear timing inspection plug at my local stealership. Clean time timing tool pushes into the timing hole and lightly brushing the flywheel to keep oil in and make the timing mark more visible.
1070 103 1070 195 1380 730 1458 585 1148 300 785 858 1375 276 412 1530 109 488 1017 1418 1038 885 402 980 1188 476 722 309 1222