Cjames58

No the ace is different.  I will look and see if I can find one for the ace. What year?

I sent you a pm with the factory wiring diagrams 

I will see if I can find mine and will post it later

In the service manual  there is at flow chart test to diagnose the starter. it also gives you possible causes for issue you are having. One thing to consider is that a car battery has a lot more cranking amps than an ATV battery this can cause the starter to work fine and mislead to what the actual problem is.It  is possible that your starter is goining bad. 

carb is probably dirty. it is the most common cause for no start on these 

no just take it slow

I will post it tonight 

I will upload it tonight 

I just uploaded 2013 through 2018 sportsman/outlaw 90 service manual to the site

I will upload one later tonight 

so you have the service manual?

this might be a stupid question is the kill switch in the exact middle. on my 88 trx the vehicle will still crank just no spark if it is not. 

have you checked the station and magnet on the flywheel?

check the voltage reading of the tips sensor. if not right vehicle let will not idle properly 

check the temp sensor is working corectly

did you check the drive shaft connection to the rear diff