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New for 2009, the Takegawa R-Stage EM line of bore kits and race heads for the Honda CRF50 CRF70 and 6V Monkey bikes. The EM (Entry Model) series is a race inspired, cost efficient version of the extremely popular R-stage line. The EM head incorporates a newly redesigned combustion chamber to match intake and exhaust ports seamlessly providing maximum power from this 88cc bore kit. Even larger valves to match the newly designed high flow head, with narrow 4.5mm stem diameter inspired by the class leading +R Superhead. All EM bore up kits ship with a Takegawa sport camshaft for even more added performance. Specs: R-Stage EM Cylinder Head
- Valves - Intake 26.0mm, Exhaust 22.5mm
- Port Diameter - Intake 24.5mm, Exhaust 19.0mm
- Valve Stem - 4.5mm
- sport camshaft
- accepts R-10D R-15D R-20D decomp camshafts
R-Stage EM Cylinder and Piston
- Sleeved cast aluminum cylinder
- 52mm cast aluminum piston kit with molybdenum coated skirt
- MFG estimated HP - up to 11.5 depending on cam choice, setup and conditions
- Full top end gasket kit
- ring set
R-Stage EM Combo Kit includes all items listed above with the addition of a pre-jetted Mikuni VM26 carburetor, port matched intake manifold, air filter, and complete throttle kit.
Note: 88cc R-Stage EM kit for 6V Monkey includes updated cam sprocket and engine head cover. Choose MM-1000 for 6V Monkey
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