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Qty: Price: $319.97
YS FZ70 SPORT

Displacement   11.45CC        
Bore                27.7mm
Stroke             19.0mm                       
Weight          (engine) 455g
                    (muffler) 33g
Practical RPM 2,000-15,000


YSE0068

Features:
The FZ70S is the most powerful 4 cycle engine of its class (only surpassed by the YS DZ70) and was developed for sport flying as well as power demanding acrobatics. It features good cooling capabilities, superior throttle response with its unique regulated and pressurized fuel injection system.
Supercharged system
Fuel injected
Regulated and pressurized fuel system muffler
The YS DZ175 Engine succeeds its predecessor DZ170 with increased capacity and power. It is developed for serious aerobatics competitions.
Crankcase supercharging system
Direct injected system
Regulated and pressurized fuel system muffler
Convenient fuel pump adjustment
High horsepower output with long service life
YS61-RE Classic

Displacement           
Bore                24.0mm
Stroke             22.0mm                       
Weight          (engine) 540g (15.4oz)
                    (muffler)
Practical RPM 2,000-18,000


YSE0032

Features:
YS DZ70

Displacement           
Bore                27.7 mm
Stroke             19.0mm
Weight          (engine) 463g (13.2oz)
                    (muffler)
Practical RPM 2,000-13,000


YSE0013

Features:
The YS61-RE Classic is designed for the Ballistic or Classic type aerobatic models.  It is the most powerful YS61 series engine to date.
Short Stroke piston and liner design
Pressurized fuel injection system for unmatched throttle response
Regulated fuel supply for a more consistent engine run and easier low end adjustment
The YS DZ70 is the most powerful in our YS63/YS70 line to date. It has the proven Direct Injection fuel system for unmatched power output. It is capable of turning propellers in the 15” diameter range.
YS FZ115-WS

Displacement           
Bore                30.4mm
Stroke             25.8mm                       
Weight          (engine) 730g (25.75oz)
                    (muffler)
Practical RPM 2,000-18,000


YSE0031

Features:
Crankcase Supercharging system
Proven regulator design for easier adjustment
Pressurized fuel injection
Crankcase ring for increased crankcase boost
The Ys 115FZ-WS is designed for Warbird type Pylon Racing. It has a new piston design to accept higher nito fuel for more power. Better balanced crankshaft for smoother operation at higher RPM.
The YS175FZ is designed for Pattern competition and scale aerobatic type models. It has the same mounting dimensions as the YS120 and YS140 for a n easy power upgrade on current YS powered models.
Fuel Injection system for a superior throttle response
Crankcase Supercharging system for unmatched power
Proven regulator system for more consistent engine run
YS FZ175

Displacement           
Bore                34.0mm
Stroke             31.8mm                       
Weight          (engine) 930g (26.4oz)
                    (muffler)
Practical RPM 2,000-11,000


YSE0022

Features:
YS DZ175

Displacement   28.87CC        
Bore                34mm
Stroke             31.8mm                       
Weight          960g
      
Practical RPM 1,000-9,000


YSE0016

Features:
Qty: Price: $788.29
YS DZ175CDI

Displacement   2.87CC        
Bore                34mm
Stroke             31.8mm                       
Weight          (engine plug) 965g
                    (ignition box) 100g
Practical RPM 1,000-9,000


YSE0018

Features:
Crankcase supercharging system
Direct injected system
Regulated and pressurized fuel system muffler
Convenient fuel pump adjustment
High horsepower output with long service life
YS FZ115 SPORT

Displacement   18.73CC        
Bore                30.4mm
Stroke             25.8mm                       
Weight            730g
                   
Practical RPM 1,000-9,000


YSE0067

Features:
YS FZ140 SPORT

Displacement   23CC        
Bore                32.0mm
Stroke             29.0mm                       
Weight            890g
                   
Practical RPM 2,000-9,000


YSE0093

Features:
Qty: Price: $887.97
Qty: Price: $397.35
Qty: Price: $459.97
Ring sealed crankshaft to increase crankcase boost for more power
Same mounting pattern as YS110FZ-S
Regulated fuel injection system for a more consistent run and increase power
Crankcase supercharging system
Supplied with a muffler assembly
Crankcase Supercharging System
Crankshaft Ring for increased crankcase boost resulting in more power.
This engine is very easy to operate with smooth running characteristics and the ability to run well on fuel in a variety of nitro percentages, but we still recommend YS 20/20 fuel for best results.  It is a bolt-in replacement for the YS 120 series of engines.
The DZ175CDI was developed for serious aerobatics competition and keeps winning
the World Championships.
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(Prices are subject to change without notice.)
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YS Engines