By
Bret4207
Hi, I have a 2019 Coleman Outfitter 550, purchased from Tractor Supply. I'm told this is a Hisun Sector 550? Is this correct? I've just gotten mine back from a 5 month visit to the warranty shop for a no start condition. After numerous emails with Coleman and calls to the shop, I finally picked it up Saturday before last. It ran, but ran rough. I was assured by the shop owner, who obviously wanted it out of his yard, that "It'll smooth out as you use it." He tells me it had a bad fuse and dirty fuel. I believe he has replaced 3 or 4 injectors on this and we did add an inline fuel filter. We got about 45 minutes of easy run time on it. I'm 60, use it on the farm and don't race it. Now I can barely get it to start. I changed the plug for a brand new NGK same as was in it- no change. In fact when I checked it I found it fairly well fouled and not arcing across the tip, but off the side of the center of the plug to inner plug wall of the threaded portion. The old plug sparked at the gap correctly and it will run. It spits and sputters and won't idle. Acts like a dirty injector to me and I've contacted Coleman again, but I'm looking at probably a 75 mile trip to get it to a better shop. I've read of people cleaning the injectors, but don't know if it's effective. I have good fuel flow from the pump and no water in the gas, which is 91 non-ethanol. I can't understand why the injector would get dirty unless the interior of the factory fuel line is deteriorating at this point. 4 grand is about the max RPM it will turn at this point. It's either fuel or an ignition issue I'd say, and I'm thinking fuel.
I've got 45 years of small engine, 2 and 4 cycle, and all sorts of farm/auto engine experience under my belt, but this computer controlled, gas injection stuff is outside my comfort zone. I got this into the warranty place a couple weeks shy of the 1 year warranty expiring 5 months back and don't have much faith in Coleman/Hisun taking much more action. So, where would you all start looking if you were me? New Ebay injector to start or what? I've read you reset the ignition control by holding the gas at max for 3 seconds and shutting the machine off with your foot to the floor. I have a Sector 550 shop manual CD but I'm not seeing that or much else yet. Doesn't matter since it won't wind up that high anyway. ?????
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