First
First go with fresh 91+octane, change back to another set of plugs (seriously). From there I would see if you could do a compression test, a leakdown test.. also how is your battery? Batteries can cause wierd problems when they start to go...After checking your ground points to make sure that they are clean, and doing the plugs, I'd eplace the next cheapest part, the battery...also befor you try any of this make sure that your tank is full and instead of running on your "ON" position turn your petcock to "RES". there is a screen in your tank that may have some gunk or corosion built up on it inside...
First go with fresh 91+octane, change back to another set of plugs (seriously). From there I would see if you could do a compression test, a leakdown test.. also how is your battery? Batteries can cause wierd problems when they start to go...After checking your ground points to make sure that they are clean, and doing the plugs, I'd eplace the next cheapest part, the battery...also befor you try any of this make sure that your tank is full and instead of running on your "ON" position turn your petcock to "RES". there is a screen in your tank that may have some gunk or corosion built up on it inside...