O.S. Engine 91HZ  [OSMG1975]

With back-to-back FAI world championships in 2005 and 2007, the 91SZ-H was effective by anyone's criteria. Now there's the 91HZ ?V a 91SZ-H redesigned along with the information worldwide's top pilots. It provides the tuning convenience and satisfaction perseverance the multi-time world champ and design innovations that promote improved air conditioning, a tighter compression seal ?V and tuning convenience!

The slim profile associated with the temperature sink mind assists the 91HZ fit completely inside cooling shrouds without cutting or losing cooling power!
Two temperature sinks ?V one on head, another in regards to the crankcase ?V enable airflow to help keep away temperature and continue maintaining performance.
Better fundamental protection decreases motor noise and encourages smoother, stronger performance.
Many up-to-date 61B carbohydrate takes determination to a different level. Dependability features focus on an insulating band which stops crankcase temperature from impacting carbohydrate settings. a generous use of O-ring seals ?V two in regards to the primary needle, anyone to the rotor ?V stops environment leakages and power adjustments.
In-flight control for the needle valve guarantees smooth, constant runs.

Specs:

• Inventory volume: OSMG1975
• Displacement: 0.912 cu in (14.95 cc)
• Bore: 1.091 in (27.7 mm)
• Stroke: 0.976 in (24.8 mm)
• bodyweight: 21.8 oz (618 g)
• Practical RPM quantity: 2,000-16,000
• manufacturing: 3.4 hp @ 15,000 rpm
• Includes: 61B carburetor, muffler, in-flight needle valve modification supply & #8 radiance plug