Almost new dual fuel Champion generator locked up after one year. I probably overpaid for it. With any luck it can be repaired. Otherwise I might be able to take advantage of the 3 year warranty that Champion offers on their generators. Either way, this generator will run and make power again. Champion Rebuild Video Series: Champion Generator Engine Locked Up After 1 Year - Fixed (part 1): (this video) Like New 80s Powermate Found in Garage (part 2): Champion Duel Fuel Generator Engine Rebuild (part 3): Generator Engine Bogs Under Load - Excessive Governor Droop (part 4): Generator Model: 201035 Engine (458cc): R460N-VP Additional short video on the cause of the failure. It was not the keepers fault: Exhaust Spacer: Air Box: Parts needed to rebuild engine: 13010-Z6B0210-00A0 Connecting Rod Assembly 13121-Z100110-00A0 Pin, Piston 13122-Z100110-0000 Circlip Ø21 × Ø1 13111-Z6B0210-00A0 Piston 13200-Z0J0110-00A0 Rings 12140-Z6B0210-0BA0 Head 12121-Z6B0110-0000 Exhaust Valve 12111-Z0D0210-0000 Intake Valve 12131-Z6B0110-00A0 Head Gasket 12109-Z0D0110-00A0 Keepers (Valve Lock Clamp) Trashed NAC NGK Generator Series: Will it Work? Making a Honda GX390 / Clone Compatible: I no longer use Harbor Freight Super Heavy Duty Degreaser in my ultrasonic cleaner. Harbor Freight changed the recipe. The bottle previously stated "NON-CORROSIVE". Now it says "CORROSIVE", "do not user on Aluminum". It now damages most carburetors. Recently I have been using Simple Green PRO HD with good results. Visit My Amazon Store: 3 Jaw Puller: 3-Pound Hammer (ESTWING MRF3LB): 3/8" Flare to NPT: Amprobe ACDC-52NAV: Borescope (DEPSTECH DS520): Drill Step Bit (Irwin 10234): Kill A Watt: Micro Drill Bits (Gyros): Oscilloscope: Propane Quick Connect: Squeeze Bottle: Test Tank: If you want to donate to the channel, you can use the YouTube "Super Thanks" feature or via PayPal: #GeneratorRepair #Generator #SmallEngineRepair #SmallEngine #DIY #Fixed #Troubleshooting #HowTo 201035, 358cc, Alternator, Auto Choke, Champion, Cracked Piston, Dropped Valve, Dual Fuel, Engine Replacement, Fixed, GX390, Generator, Hertz, Hole in Piston, Honda Clone, How To, How-To, Keeper Failure, Load Test, Locked Up, New Engine, Power Quality, Quality Control, R460N-VP, Repair, Repower, Seized, Small Engine, Solenoid, Stuck, THD, Valve Spring, Valve Spring Retainer, Troubleshooting, Wiring 00:00 Intro 01:59 Triage Stuck Engine 11:34 Tear Down 36:38 The Carnage 51:15 The Plan 53:53 Build 1:30:03 First Test 1:40:29 Propane Test 1:46:08 Finishing It Up 1:46:51 Gasoline Load Test 1:55:46 Propane Load Test 1:58:54 Adjust Carburetor Jetting 2:03:51 Gasoline Load Test #2 2:05:38 Outro