Naraku Intake Manifold Spacer 24mm w/O-Ring (139QMB)
Description: Naraku Performance 24mm Intake Manifold Spacer with O-Ring for 139QMB. CNC-machined aluminum intake manifold spacer from Naraku. The conical bore of the spacer allows unrestricted flow from 24mm manifolds to 21mm inlet ports on the 51mm cylinder head (present in 51mm and 52.4 mm Naraku cylinder big bore kits).
The Naraku Intake Manifold Spacer aka “Jet Flow Spacer” is designed to optimize flow in NARAKU big bore kit. The resulting venture-effect means fresh gas is forced in and improves the volume in the combustion chamber. This results in an increase in torque with appropriate adaptation work to the original cylinder head or intake manifold, the spacer can be used with a stock setup or tuning levels below 90cc kits! Using a 24mm carburetor is ideal, but not necessary.
NOTE: The spacer has an inner diameter of 24mm side which should face flush onto the intake manifold and is tapered down to 21mm, which needs to face flush onto the cylinder head inlet. This helps correctly throws the intake manifold's airflow into the 21mm cylinder head inlet. If flip reverse meaning the 24mm tapered side is facing down on the cylinder head inlet it will act reversely as a little airflow restriction.
Includes the following Intake manifold spacer.
• 1x CNC Machined Aluminum Red L: 60mm / ID: 21<24mm / W: 38.15 / H: 11.65mm
• Taper ID: 24mm down ID: 21mm
• Bolt Space: 45.1mm
• 1x Rubber O-ring ID: 27mm / OD: 32mm / H: 2mm
• Made in Taiwan
• Fit QMB 49/50cc+ BORE
Supported Models: 139QMB 49cc-50cc engines, Baja SC50, Boreem (BMS) 50, Filly 50, Kymco 50, Panterra 50, Qingqi 50, QLink 50, Roketa 50, SUNL 50, SYM 50, Tank 50, TaoTao 50, and virtually any other scooter engine with these measurements.
Item Weight & Product Dimensions:
• 0.068 pounds | 3.75" (L) x 1.5" (W) x 0.460" (H)