Honda CRF70F (XR70)
The Honda 70 was first introduced in 1997 as the XR70. At the time it was a great play bike for big kids, girls, and even adults. The engine was basically the same as the Honda 50 with a bigger bore size, valves, and clutch. The best part was it remained a reliable 3-speed automatic. In 2001, the little 70 received a plastic update to make it look more like the big CRs. In 2004, the 70 got another plastic update and was renamed the CRF70. The strong points of the bike are the Honda reliability and high revving motor. The must have items are the chain guide, bars, exhaust, rev box, and heavy duty springs. The CRF 70 remains a favorite in backyards all over the world.
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Honda CRF70F (XR70) FAQ
Honda CRF70F (XR70) FAQ
OEM Honda CRF70F (XR70) Specs
| Displacement | 72cc |
| Bore and Stroke | 47mm x 41.4mm |
| Compression Ratio | 9.0:1 |
| Spark Plug | NGK CR6HSA |
| Valve Clearance | IN: .002" EX: .002" |
| Carb/main jet/pilot jet | 13mm Keihin / 60 main / 38 pilot |
| Transmission ratios | 3.272 / 1.667 / 1.190 |
| Oil Capacity/Type | 0.8 US Quarts / 10W-30 |
| Chain size/front sprocket/rear sprocket | #420 chain; 15T/36T |
| Front tire size | 2.50-14 |
| Rear tire size | 3.00-12 |
| Seat height | 26.1 inches |
| Wheel Base | 42 inches |
| Weight | 139 lbs. |
| Part diagrams link | Honda CRF70F (XR70) Parts Diagrams (MotoSport.com) |
| Service manual link | Honda CRF70F (XR70) Service Manual (RepairManual.com) |
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