Ive got a 97 gtx 787. I needed to add oil and only option at the time was some polaris 2 stroke snomobile oil. I've ran it a little and ever since adding the oil I have a random miss under load and is really noticeable in the top end at WOT at 7k that's when you really hear it miss. I've pulled the plugs and they look like they are getting too much oil. My question is because this is cold weather oil and i'm assuming its a bit thinner can my mixer (it's adjusted correctly) be injecting just a little too much causing a slight miss. Or am I over thinking it and need to look at ignition. Any help is better then none. Thanks for your time.