Subaru Robin Power Products Subaru EX27 - Manual (Page 14)

Subaru Engines
High Performance
What’s the benefit of Subaru’s advanced mechanical decompression system?
Easy Starting
With 30 to 40 percent less recoil pulling force than competitive
models, Subaru engines provide smooth, easy starts. Sure,
all engines start easily when they’re brand new. Subaru OHC
engines continue to start easily even after thousands of hours
of use.
Pulling Force
EX13
EX27
Competitor
Competitor
0 3 6 9 12 15 (kgf)
Easier to Start
Compression Release
Subaru Robin EX17
EX13
EX17
EX21
EX27
Honda
Honda
Honda
Honda
70 82 (dBA)
High Compression OHC Design
EX13
EX17
EX21
EX27
Competitor
Competitor
Competitor
Competitor
0 1 2 3 4 5 6 7 8 (kW)
Max Power
Overhead cam (OHC) technology and the hemispherical combustion chamber allow the Subaru EX
engines to use a higher compression ratio up to 9:1.
What is the significance of a higher combustion ratio?
More Power
A more powerful engine makes for more powerful and productive equipment.
Increased Efficiency
Lower fuel consumption and efficient performance reduce operating costs.
High Power & Torque