Zenoah G270 26 cc Falcon3 Tuning Motor

We have been developing various variations of engine tuning since 1995, and in recent years we have increasingly focused on the 26 and 29 cc engines. One result of this is this Falcon3 26 cc, a high-quality product, based on the 4-bolt 26 cc Zenoah G270 engine.

With the Falcon3 operations we also take into account durability and reliability, without having to make any concessions in terms of power. The first step is to completely disassemble the engine to be able to measure everything so that the fits are optimal. We also measure the squish, (read anti-detonation gap), between the piston and the cylinder at the b.d.p., or top dead center. In this way we can determine the thickness of the base gasket in advance so that the squish is optimal.

Then we check the thickness of the crankshaft pins or whether the entire crankshaft meets our requirements. These must have an ideal thickness so that the crankshaft can move smoothly in the bearings. 9 out of 10 times this has to be adjusted. The 3rd step is to edit the piston and the cylinder, whereby the port diagram is adjusted for maximum performance. The 4th step is to balance the flywheel and adjust the cooling fins. After all these checks and edits, the whole thing is professionally reassembled using our line of HQ gaskets.

Professional edits:

• Crankshaft alignment and grinding if necessary
• Piston editing with extra transfer ports
• Cylinder editing, (transfer ports, exhaust port and squish)
• Flywheel balancing and editing when necessary
• Mounting with quality HQ gaskets
• Optimization of selected carburetor pressure
• Optimization of selected carburetor

Technical data:

• Displacement: 25.4 cc
• Cylinder bore: 34 mm
• Cylinder stroke: 28 mm
• Cylinder mounting: 4 bolts
• Crankshaft bearings: 3 pieces
• Power: 2.75 HP at 13,000 rpm
• Tractive force: 1.76 NM at 9,000 rpm
• Idle speed: approx. 4200 rpm
• Max. speed: approx. 20,000+ rpm
• Fuel consumption: approx. 666 g/kw
• Spark plug: NGK CMR7H
• Spark plug gap: 0.65mm
• Ignition system: Transistor charger ignition (TCI with BTC 30° / 8000 rpm)
• Starting system: Pull starter
• Effective compression ratio: 9.0
• Recommended fuel: 1:25, 40 cc oil to 1 liter 98 octane fuel
• Overall dimensions (L166 x W205 x H196 mm
• Weight approx: 2.1 kg

Smooth and powerful engine that is there when you need it, all combined with low fuel consumption. We have done our utmost for you to build one of the best tuning engines. We guarantee that you will be satisfied! The choice is easy for you, a smooth, reliable, economical engine with a lot of power that can compete with the very best on the market. For optimal performance and protection we recommend the PSR-2 Race oil and TPS air filters and accessories. All under- and tuning parts are available from stock!

The engine is delivered complete, but without coupling, engine mounting flange and exhaust.

This Zenoah engine has the same installation dimensions as:

• Zenoah G230
• Zenoah G240
• Zenoah G260
• Zenoah G270
• Zenoah G290
• Chang Yung, Dynamic and similar

Attention! When this engine is installed in a 4WD model from FG Modellsport, parts of the crankcase must be removed, see photo 10.

Explanation of carburetor choices:

• WT990 Standard carburetor without choke
• WT990BB Standard carburetor with bearing throttle valve shaft
• WT990BBS Standard carburetor with bearing stainless steel 340 throttle valve as, (recommended)
• WT997 Optional carburetor with choke
• WT997BB Optional carburetor with bearing throttle valve shaft
• WT997BBS Optional carburetor with bearing stainless steel 340 throttle valve shaft, (recommended)

Engine break-in:

• 1) Use 1:25 fuel mixture, 40 cc top quality 2-stroke oil on 1 liter E5 Super petrol
• 2) Carburetor needles both 1 1/4 turn open, (this is the standard setting from the factory)
• 3) Start engine and let it idle for about 2 minutes until it is up to temperature
• 4) During the first tank, build up the speed, avoid prolonged high revs! this takes about 40 minutes
• 5) Let the engine cool down completely and perform a visual check for leaks, etc.
• 6) During the second tank, gradually increase the speed, this takes about 40 minutes
• 7) Let the engine cool down completely again
• 8) Visually inspect the exhaust port, check the entire engine for any leaks
• 9) Drive the third tank as you normally would, just briefly at full throttle, this takes about 40 minutes
• 10) Engine is now ready to be fully loaded