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Operating instructions 

 

MVVS 190CN4 

No: 3014 

 

 

 

 

 

 

 

Version 1.0 

Before using the engine, please read these instructions carefully. 

 

Congratulations on choosing the gas engine MVVS 190CN4 - 4 cylinder 190cc. 
MVVS  190cc  has  been  designed  and  manufactured  for  propeller-powered radio-controlled 
model planes. It is able to meet all of your expectations of an aerobatic racing engine.  
 

Technical specifications 

 

Bore 

40 mm 

Maximum power output  
Silencer INT 58.02 
+MVVS headers 3246 

20,5 HP / 6700 RPM 

 

Stroke 

38 mm 

Maximum torque  
Silencer INT 58.02 
+MVVS headers 3246 

22 N/m / 5900 RPM 

 

Weight of complete 
engine without 
ignition* 

4590 g 

Fuel 

Unleaded 95-octane 

fuel 

Weight of ignition unit 

270 g 

Lubrication 

Oil with petrol in 

mixture 1:40 

 

 

RPM range 

1000 – 9500 RPM 

 

 

Propeller recommended 

32x12 2 blades 
30x13 3 blades 

 
* Some manufacturers state the weight of incomplete engines. The value in the table above 
stands  for  the  weight  of  a  complete  engine,  including  the  spark  plug,  carburetor,  drive 
washer and prop screws. 
 
                                                    

Important notice 

This engine is very 

specific 4 cylinder

 with different characteristics from classical  

2 cylinder engines. 
 
a) Two ignitions: 
     The 

first

 ignition - its hall sensor 

for front cylinders

 (close to the propeller) must  

     be installed on the adapted milled pad labeled by 

one point

 (one dent-dot between  

     two threads for hall sensor bolts.) 
   
     The 

second

 ignition - its hall sensor 

for rear cylinders

 (close to the firewall)  

     must be installed on the adapted milled pad labeled by 

two points

 (two dent-dots  

     between two threads for hall sensor bolts.) 
 
b) Ignition battery test function 
     Is strictly prohibited to do the ignition battery test function as you are used to from  
     other 1 and 2 cylinders MVVS engines. This battery test function could cause   
     spontaneous accidental start of the engine. 

Summary of Contents for MVVS 190CN4

Page 1: ...3 blades Some manufacturers state the weight of incomplete engines The value in the table above stands for the weight of a complete engine including the spark plug carburetor drive washer and prop screws Important notice This engine is very specific 4 cylinder with different characteristics from classical 2 cylinder engines a Two ignitions The first ignition its hall sensor for front cylinders clo...

Page 2: ...cturer provides this information Engine power output is also a variable quality It depends above all on the silencer used and can considerably vary The situation is further complicated by environmental parameters temperature and atmospheric pressure in particular low temperature and high pressure increase propellers input requirements by 20 in comparison with input at hot weather Suggested propell...

Page 3: ... II Faulty acceleration with hiccups and a tendency to cut out is usually attributable to a poor fuel mixture in the medium revolutions range Stop the engine and recheck the fuel feed the hose pipe must not be pinched or broken if fitted check also the fuel filter permeability Restart the engine and test acceleration again If problems persist adjust both carburetors Open the adjusting needles L by...

Page 4: ...while changing revolutions from idle to 1 2 3 4 of the range and shortly holding each position gradually prolong the holding periods After 10 minutes running start opening the throttle at maximum for short periods of time Stop the engine and let it cool down Then restart it and check the adjustment If everything is all right you can first take off During first few flights do not overload the engin...

Page 5: ...Notes Notes ...

Page 6: ...balanced or damaged propeller damage arising from the use of a too small or a too big propeller damage arising from the use of low quality fuel damage arising from the use of other than original spare parts and accessories damage arising from sucking a foreign object into the engine damage arising from any improper use For further questions please contact MVVS spol s r o tr Kpt Jarose 35 602 00 Br...

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