kpforce1

10 minutes ago, RickinMT said:

UPDATE-- I heard from Hisun Tech Support and they're sending me the parts under warranty.  I guess it's happened enough that they know which parts apply and he asked if there are any additional parts needed to send pics and they'll take care of it. Great news. That's what I was hoping for. 

Did i miss what it ended up being?  Hopefully the easier fix.

You may have a busted middle drive gear support and/or through shaft.  All power is transmitted through it.  Looks like a case split may be in order.

I replaced my drive gear support with a billet unit for a 660 rhino when i had the case apart.

Edit:  i have a sector 750 but i think they are the same.

On 6/10/2022 at 7:53 PM, Roadstar515 said:

Does anyone know if they sell a tuner for this unit to adjust AFR and timing to get a little more out of these motors without damaging them. I understand it most likely voids the warranty but still interested.

thanks, Rick

In order to tune the MT05 Delphi ECU on the 750's, you need the following:

USB to OBD2 Port adapter

6 Pin OBD to OBD2 adapter

HUD ECU Hacker Software

I haven't found anyone that tunes the single cylinder 735cc engines.  I have been tinkering with mine but it is far from stock so I HAVE to learn lol.

CP Carrillo 11:1 Forged 102mm 660 Raptor piston

Hotcams Stage 2 660 Raptor Cam

Kibblewhite Dual valve spring kit

Kibblewhite Valve Guides

Ferrea +1mm stainless intake/exhaust valves

Ported/Polished head

Ported and enlarged intake

Hisun Tactic 1000cc 54mm Throttle body

Custom Air Intake with UNI filter

larger fuel injector

Custom header and exhaust

Hunterworks 660 Rhino Machined Sheave kit

Gates C12 700 Rhino Belt

Slugged wet clutch

Weller Racing 660 Rhino billet middle drive gear support