SquareTrade © AP6.0 This is the Ofna Jammin' .28JPX Engine. FEATURES: Special slide valve carburetor has high heat nylon body to counteract heat from the engine that could cause the fuel to boil before entering the engine ABC construction (Aluminum piston with a Chromed Brass cylinder) Red anodized aluminum...
SquareTrade © AP6.0This is the Ofna Jammin' .28JPX Engine.
FEATURES: Special slide valve carburetor has high heat nylon body to counteract
heat from the engine that could cause the fuel to boil before
entering the engine
ABC construction (Aluminum piston with a Chromed Brass cylinder)
Red anodized aluminum head
Engine delivers excellent bottom end power with great top end run out
Includes Turbo Plug type head
Turbo glow plug included
INCLUDES: One Jammin .28JPX Engine
One silicone rubber insert for Force and Novarossi type manifolds
One running and parts information sheets
One Jammin products sticker
SPECS: RPM: 36000
Bore: 19.00mm
Cubic capacity: .28 cu in (4.50cc)
Stroke: 16.8
HP: 3.5
Weight: 12.34oz (350g)
Length: 64mm (2.51") front of front bearing to back of pull start
Width: 21mm (.82") width between mounting holes same side
38mm (1.49") width between mounting holes opposite side
32mm (1.25") crankcase width
Height: 112mm (4.4") from bottom of crankcase to top of cylinder head
(contact Ofna for more technical information).
Needle settings: factory setting equals 6-1/2 turn out in total
REQUIRES: Ofna recommends using 20% O'Donnell fuel
Muffler or tuned pipe depending on application
Some notes on Slide Valve and Rotary Carburetors:
Rotary Carbs offer a larger response in the middle of the power
band. This works well for off-road applications when throttle
response must be varied.
Slide Valve Carbs provide greater response at the beginning and end
of the power band. This works well for on-road and racing
applications for fast take-offs and high speed.
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Manufacturer: N/A
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