How To Rebuild The Engine Top End On Your 1997 – 2001 Honda CR250
I wanted to make this 2-stroke top end rebuild as easy to follow as possible, so I’ve broken the top end service into 15 steps that cover the removal, inspection, and installation of each component in order, followed by the leak down test and break-in.
In this video, we are going to cover what specialty tools and supplies you need, along with precautions and shop setup.
Click Here For The Full Step-By-Step Guide
Tools & Parts:
- Piston Pin Puller – $10
- Piston Holder – Free
- Machinists Straight Edge – $30+
- Feeler Gauges – $7
- Telescoping Bore Gauges – $20
- Digital Calipers – $15
- Plastic Scraper – $10
- Spark Plug Thread Follower – $5
- Motion Pro Torque Wrench Adapter – $13
- Molybdenum Grease
- Lithium Grease
- Tusk Gasket Set – $12
- Cylinder Alignment Dowels – $1.34
- Exhaust Valve Cap O-Ring – $2.69
Honda CR250 Top End Service Steps:
- Step 1: Cylinder Head Removal (Video)
- Step 2: Cylinder Removal (Video)
- Step 3: Piston Removal (Video)
- Step 4: Exhaust Valve Removal (Video)
- Step 5: Piston Inspection (Video)
- Step 6: Cylinder Head Inspection (Video)
- Step 7: Cylinder Inspection (Video)
- Step 8: Exhaust Valve Inspection (Video)
- Step 9: Clearance Calculations (Video)
- Step 10: Exhaust Valve Installation (Video)
- Step 11: Piston Installation (Video)
- Step 12: Cylinder Installation (Video)
- Step 13: Cylinder Head Installation (Video)
- Step 14: Leak Down Test (Video)
- Step 15: Engine Break-In (Video)
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