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Details about  50cc Twin-Cylinder Gas R/C RC Airplane Gasoline Engine

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50cc Twin-Cylinder Gas R/C RC Airplane Gasoline Engine
Item Sold
Item condition:
Aug 05, 2012
Winning bid:
US $249.01
28 bids ]
$17.37 Standard Shipping | See details
Item location:
Illinois, United States


eBay item number:
Seller assumes all responsibility for this listing.

Item specifics

New: A brand-new, unused, unopened, undamaged item (including handmade items). See the seller's listing ... Read moreabout the condition
Fuel Source: Gasoline
For Vehicle Type: Airplane Part: Engines

This is a 50cc twin cylinder engine made by SV. It is new and in OEM white packaging. Includes electronic ignition, mufflers, mounting plate. Electronic version of the manual is available by request.

The engine does not include a printed manual, please download the electronic manual here.

Engine type: twin cylinder, 2-stroke, air-cooled
Bore: 34mm
Stroke: 28 mm
Piston displacement: 50.84cc
Electronic auto advance ignition: 4.8-6v input voltage
Carburetor: Walbro pump type/diaphragm, external pulse
Prop range: 20x8;20x10;22x8; or 19x10;19x12 three blade
Weight including mufflers and ignition: 4.51lbs

Thrust with 22x8 prop:
6900RPM---4.397HP-Static Thrust: 31.5lbs
7000RPM---4.591HP-Static Thrust: 32.45lbs

# Mounting length to spinner backplate- 7.25”
# Height of engine from centerline to bottom of carb- 5.75”
# Cylinder top to Cylinder top- 8.25”, with plug caps installed- 9.5”
# Engine to firewall mounting bolt pattern- 76mm W x 63mm H

Drill guide for this engine:
Use the prop washer as a guide. Install the prop on the front of the engine, slide on the prop washer, align the holes with the prop tips, use proper sized drill bit for your application below and a hand drill to drill partially into the prop , do not drill through it, remove the prop and then drill all the way through preferably with a drill press.

  • For engines using 6mm prop bolts, the drill bit size should be 1/4” or 6mm
  • For engines using 5mm prop bolts, drill bit size should be 13/64” or 5mm
  • For engines using 4mm bolts bolts, drill bit size should be 11/64” or 4mm

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