Pit Bike Engine Teardown || CRF70 / CRF50 / XR70 / XR50 / CT70 / Z50
Brian D. Mobley Brian D. Mobley
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 Published On Jan 2, 2021

Want to teardown and rebuild your pitbike motor? If so, you found the right video. In this video I will take you through every step of the horizontal, air cooled engine disassembly process. Follow along and you can do the same job yourself with confidence.

Special Thanks: www. TBoltUSA.com

★TOOLS USED:
Flywheel Puller: https://tboltusa.com/store/trc-pit-bi...
Crankcase Splitter: https://tboltusa.com/store/case-split...
Clutch Nut Remover: https://tboltusa.com/store/size-clutc...

★TIMESTAMPS

0:00 Intro
1:15 A Little Joke…
2:02 A Few Tips and Some Info Before Teardown
2:39 Remove Valve Adjuster Covers
2:51 Remove Flywheel
3:13 Remove Woodruff Key
3:33 Remove Stator Assembly
3:50 Remove Stator Base
4:11 Sealing Bolt and Tensioner Assembly
4:21 Remove Tensioner Arm Assembly
4:33 Remove Cover Plate
4:49 Remove Cam Sprocket
4:57 Loosen Cam Adjusters
5:04 Remove Camshaft
5:07 Remove Valve Cover
5:38 Remove Cylinder Head
6:16 Remove Piston Using Crankcase Splitter
6:35 Remove Wrist Pin Circlip
6:54 Remove Wrist Pin
7:32 Remove Clutch Cover
7:56 Remove Clutch
8:52 Remove Primary Drive Gear
8:56 Remove Driven Gear
9:05 Remove Stopper Arm
9:16 Remove Shifter Spindle Assembly
9:22 Remove Shift Cam Plate
9:37 Remove Kickstart Return Spring
10:24 Remove Shift Drum Bolt
10:32 Remove Crankcase Bolts
10:48 Remove Oil Pump
10:59 Split Crankcase Halves Using Crankcase Splitter
12:05 Remove Crank
12:14 Remove Kickstart Spindle
12:20 Remove Transmission Assembly
12:33 Remove Cam Chain Guide Sprocket
12:47 Completely Stripped Crankcase Half
12:52 THANK YOU!

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