Starting harley for first time in 17 years. But wont turn over????????

Question

Just off the bat, I'm no dumby when it comes to vehicles, but this just drives me nuts. I have got a 1975 harley sx175 and it is a 2 cycle. Today I drained, and flushed all fluids then put in all new. Did the little things, just so it would run, but when I go to kick start it, it turns over but then jams. I took out the spark plug and kicked it over and the motor is NOT locked up, but while turning it over, every time I kicked, a thick mist of 2 cycle oil squirts out. I think the reason it "jams" is because after the first initial kick, too much oil is let in cylinder, in which there is way to much compression. Also everytime I take the spark plug out, the tip is dripping with oil. Now I do know the oil is added to the fuel automatically. I'm pretty sure its not a carb problem, but I may be wrong. Can ANYONE give advice, or explain to me how the oil system in these bikes work, so I can get an idea of what the issue is? Thanks

Answer 1

i own a repair shop,and i used to have one of those,i didn't think there was any left around anywhere,good to know some of them did make it,what you need to do on this one for awhile is disable the automatic oil-er on it the diaphragm in it is busted and it will continue to do this,and then drain the tank again,and add a fuel and oil mix in it,this way you,ll by pass the automatic oil er,you can do this to get it started ,i rode mine like that for years but its better to have the oil er working on it,but just to get it started you can do this,and you can still find parts for that one also,you need to also check the points in it ,because the condenser will go dead on these if you let them set,and i know this one has,but you can get it to run ,if you ever get it to run right you,ll be surprised at how good they actually do,I'm glad to know one survived ,good luck with it hope this helps.

Answer 2

Being a 2 stroke the air fuel and oil mixture goes down the intake port and circulates in the crank void and then up into the cylinder for combustion.....Sounds to me like a hydrostatic lock due to a whole lot of fuel oil sitting in the bottom of the crank. One way to fix this is to turn the bike upside down and with the plug out turn it over slowly untill all fluids stop comming out of the plug hole. If this doesnt work check to make sure that your spark plug length isnt to long and isnt hitting on the crown of the piston.

Answer 3

You have to mix the 2 cycle oil with the gas b4 you add it to the tank. Also,was the gas left in the tank all the time the bike sat? If so,you need to clean the tank and rebuild the carburetor as well. I'm surprised you were even able to kick the engine over after that much idle time on it.

Answer 4

You could also look under the engine at the lowest point of the engine case.
There should be a threaded drain plug for just that purpose.

Drain the bottom end of the crank case, and put the plug back in.