I need a free wirindiagramg for an 87 heritage

Question edited for clarity.
Question moved from Cars and Trucks.

There are some videos and articles that may help.

https://www.google.com/search?q=2008+Harley+Davidson+Heritage+Softail+starter+not+engaging+long+enough

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Kinda sounds like your starter solenoid is shot

The starter silinoid is connected to to starter and can't be replaced with out the starter itself when you buy a new starter it'll come with a new silinoid on it pretty expensive too

It should be fine with 87 octane. Remember,on the pump the sticker always reads a minimum octane rating of 87.

You will really need a service manual on this. Remove seat. Remove battery. Remove exhaust system. Drain and remove oil tank. Remove starter leads. Remove starter. Replace. Reinstall above in reverse order of disassembly.Don't forget to put oil back in.

To remove the starter on you Softail, first disconnect the negative side of the battery.

Then drain the primary and remove any footboards, shifters, ect. so that you can get the outer primary cover off. Once the cover is off, remove the small bolt that holds the starter jackshaft on and remove the jackshaft. The jackshaft coupling may come out with the jackshaft. Mark which way the coupling goes back in as there is a snap ring on the inside that is not in the center.

Now, go to the right side of the bike and remove the exhaust system, and remove the bolts that hold the oil in. Do not take the tank out but you need to be able to lift the tank just a bit. Remove the battery cable from the starter using a 12mm wrench. There are two large bolts that hold the starter into the inner primary, remove these two bolts and unplug the small wire at the top of the solenoid and the starter will come out.

Good Luck
Steve

form the sound of it you need a new clutch pak in the starter. Its pretty simply fix. don't let them sell u a new starter just a clutch pak for the starter. I take it by spinning u are not talking about the motor turning over. If its turning over then its not the starter.