HPI Nitro Star F4.6 V2 Engine, 4.6Cc, Slide Carburettor, And Rear Ex

This is the HPI Nitro Star F4.6 V2 Monster Truck Engine with Pull Starter.

FEATURES:
Fits any HPI Savage or other 1/8 scale monster truck
1.3oz (37g) lighter and 0.47" (12mm) much shorter than previous variation
Larger fins on cylinder head for improved cooling
New pull starter uses one-way bearing framed in a big 14mm hex for
    increased toughness
Composite body slide valve F1 7.5mm carburetor
8 ports, 7 consumption, one exhaust
2 year minimal service warranty begining at date of purchase, Valid just
    on engines sold and utilized in the U.S.A, Canada, and South America

CONSISTS OF:
F4.6 V2 Monster Truck Engine with Pull Beginner, Cold R5 Glow Plug,
    Air Filter, and Guidelines

NEEDS:
Shine Fuel: 15-25% vehicle blend, 20% needed for break-in
Air filter oil
Glow starter and track equipment
SPECS:
Displacement: 4.6cc
Bore: 18.68mm
Stroke: 16.6mm
Power: 2.9hp @ 32,000RPM
Distance in between Mounting Hole Centers/Same Side: 083" (21mm)
Distance in between Mounting Hole Centers/Opposite Side: 1.46" (37.2mm)
Crankcase Width below Mounting Tabs: 1.25" (32mm)
Width at Mounting Tabs: 1.8" (46mm)
Height/bottom of Mounting Tab/top of Cylinder Head: 3.5" (88mm)
Height/bottom of Crankcase/top of Cylinder Head: 4" (102mm)
Length/Pull Beginner to Front Bearing: 3.3" (84mm)
Length/Pull Beginner to end of Crankshaft: 4.5" (114mm)

Carburetor Settings:
    High Speed Needle, 2-2/2 turns clockwise from flush
    Idle Screw: Set throttle trim on transmitter so that throttle is in
neutral position, turn screw counter-clockwise to decrease idle
speed, or clockwise to increase idle speed. Set idle speed high
enough to keep engine running efficiently, but low enough to
engage the clutch.
    Low Speed Needle: No change suggested. For increased
performance, set after high-speed needle is adjusted. Turn needle
in 1/8 turn increments for much better bottom end throttle response.
Caution-never turn in more than 2 turns from flush. This will
cause engine to run too lean and will lead to damage.

NOTES:
The front bearing is 19x7x6, the rear bearing is 25x14x6 jxs 10/23/14