So i have never had motor problems in over 15 years of ownership i changed the tstats once to due leaking and just regular maintenace. So the other week i changed my plugs, fuel filter and bleed system filter. Afterwards when idling in gear it wants to stall and does occasionally. Fires right back up runs fine otherwise just making it hard to do slow speed operations. I really dont know what to look at here. Thank you in advanced.