Lost power started skipping going down highway at 70 mph
Felt like bike was running out of gas even though I had just filled up. I pulled off at first exit and bike knocked off at bottom of exit ramp. Thinking I had gotten bad gas I switched to reserve and it cranked back up. It continued skipping so I switched back to the regular tank and rode it home. I changed gas and plugs but it still is skipping
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Re: Lost power started skipping going down highway at 70...
Your problem suggests bad gas(water) or ecm(engine control module) problems, have a cycle in the shop last month acting the same way replaced ecm after draining the fuel and seeing the gas had no water in it check gas first good luck.
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Just a guess, have you checked the ignition coils? One may have a crack in the wound wire. When it warms it opens then closes when it cools down. There are a number of things that can cause your problem, but I would start with the ignition system.
Only running good with the choke on is an indicator that the bike is normally running too lean. The fact that it runs good with the choke on at least tells me it is getting fuel to the carb(s). Therefore it seems probable that there is clogging in the carburetor jets or there is a big air leak between the engine and carb(s).
Without getting too specific, there is/was a recall on this exact problem. The bike would just cut off... completely shut down, no power even if you were flying down the highway at 70 mph. Check recall list with HD for more info.
All Harleys after the year 1992 will have some engine oil carry over visible in the air cleaner though there is a diffrence between excessive and normal although if you get on your bike and travel down the highway at a constant 80+ MPH you will find that you get more carry over to the air cleaner then you would normally riding at lower speeds and this is simply cause you are running the engine harder and therefore you will see more carry over at the air cleaner. Now to be sure, make sure your bike is sitting on level pavement and in the case of a Softtail model it should also be upright and level pull the dipstick from the oil tank and wipe it clean, reinsert fully into the oil tank and remove it again and look to see if your oil level is roughly halfway between the check marks on the dipstick. If so then yes your oil level is good. I would now remove the air cleaner cover and wash any excess oil out of it and if your running a stock air filter and you have had a oil carry over issue for awhile now, then replace the air filter, reinstall the air cleaner cover and go ride the bike for around 50 miles and by ride the bike I mean go ride it like in town and on the highway without being abusive to it or excessive speeds(70 mph). Then remove your air cleaner cover again after your test ride and look to see if you have any oil carry over in the air cleaner. if so let me know and we can go into further detail.
Next time it happens, pop the gas cap and see if the problem stops.
Can you hear/feel air rushing in when you open the cap?
If you can, you have a clogged gascap vent.
You can try to take it apart and and clean/fix the one you got, or just buy a new cap.