Where to buy ECU for Hisun Tactic 550?

[skittle021]

Anyone know where to buy an ECU for a 2018 Hisun Tactic 550? All I can find online are the UTV variants. 

[Mech]

Do you have a part number ? That's the first thing I'd try to get, then enter that into google.

You should mention the year as well if you want us to try and look one up for you.

And.. are you sure your ecu is buggered ? They are normally hard to diagnose. The usual advice is to eliminate every other possible cause for the problem you are having, and when every other suspected possibility is tested and eliminated, to assume it's the ecu. Have you tested every other possible cause of your problem ? Ecu are normally very reliable, and expensive.

[skittle021]

Yeah I mentioned in my first post it’s a 2018, the part number on the sticker is 39200-139-0000. I’ve been through the entire electrical system and I’m about 90% confident it’s the ECU. I’ve got no spark, no injector pulse, no fuel pump and the mileage isn’t even showing up on the instrument cluster. 
 

I’ve searched the part number on every search engine I could find, but I’ve gotten literally zero results - it’s so crazy. The closest I could find was one for a 550 UTV, but those are programmed slightly different from the ATV versions. 

[Mech]

Oh yeah, so you did. I must have been reading the post name but missed it in the post.

Well you know, it's a bit weird for all those different systems to all fail at once because of the ecu. Ecu use different circuits internally for the different actuators and sensors.

Does that thing have trouble codes you can read out ? Have you checked for any codes ?

If there are no codes it's likely that one of the several power feeds or earths for the ecu have failed. That's far more likely than the ecu has failed several circuits internally.. unless of course the battery had been connected backwards, or something unplugged while it was on or running. If it just failed in service, or refused to start one day when nothing had been done to the bike likely to cause all those problems, then I'd be checking every earth and every power supply.

Do you have the service manual ?