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Operating instructions 

 

MVVS 80 IRS No: 3007L 

MVVS 80 IRS SP No: 3007SP 

MVVS 80 IRS TS No: 3007TS

 

 

 

 

 

Version 1.2 

 

 

 

Before using the engine, please read these instructions carefully. 

 

Congratulations on choosing the gas engine MVVS 80. 
MVVS  80  has  been  designed  and  manufactured  for  propeller-powered  radio-controlled 
model planes. It is able to meet all of your expectations of an acrobatic racing engine.  
 
 

Technical specifications 

 

Bore 

48 mm 

RpM range 

1000 – 7500 RpM 

Stroke 

44 mm 

 

 

Weight of complete 
engine without ignition* 

2220 g 

Fuel 

Unleaded 95-octane fuel 

Weight of ignition unit  

190 g 

Lubrication  Oil with petrol in mixture 1:40 

 
 

Safety precautions 

 
1)

 

Never use the engine for any manned vehicles. 

2)

 

When  operating  model  planes,  always  follow  the  rules  and  laws  in  effect  in  your 
country.  

3)

 

The manufacturer declines all responsibility for all damages arising from the operation 
of models and other appliances droved by MVVS 80 engine. 

4)

 

Always use original spare parts. 

5)

 

Never tamper with the engine construction. 

6)

 

Before  each  flight  check  that  all  the  propeller  screws  are  tightened  up  and  in  good 
condition. If  you use a spinner, check that it is tightened up, too. When mounting the 
spinner always follow the assembly instructions. 

7)

 

Periodically  check  that the  engine is  firmly  fixed  to the  engine  mounts.  Never  start a 
loose engine! 

8)

 

Always use a balanced propeller! Always replace the propeller when damaged! 

9)

 

Make sure that no part of your body intersects the plane of the spinning propeller. 

10)

 

Always wear close-fitting, well-fastened clothes when starting or operating the running 
engine. Never wear loosely hanging clothes (ties, scarf, etc.). 

11)

 

Never try to stop the engine by any part of your body. 

12)

 

Always  stop  the  engine  either  by  turning  off  the  ignition  switch  or  by  completely 
closing the carburetor throttle valve. 

13)

 

Before starting the engine always make sure that the model is safely fixed in place and 
cannot start moving. 

14)

 

Fuel  is  combustible  and  therefore  must  be  kept  in  an  enclosed  container  at  a  safe 
distance from the engine when it is running.  

15)

 

When preparing fuel carefully follow the manufacturer’s or dealer’s instructions. 

Summary of Contents for 3007L 80 IRS

Page 1: ...mper with the engine construction 6 Before each flight check that all the propeller screws are tightened up and in good condition If you use a spinner check that it is tightened up too When mounting the spinner always follow the assembly instructions 7 Periodically check that the engine is firmly fixed to the engine mounts Never start a loose engine 8 Always use a balanced propeller Always replace...

Page 2: ...eral times over Finally tighten the washer screws once again in sequence across each other Exhaust Use only factory made exhausts pipes designed for this type of engine preferably brand name MVVS engines with which you also get the power output guaranteed The manufacturer declines all responsibility for all engine damages arising from the use of improper exhaust systems When mounting the exhaust f...

Page 3: ...engine and test acceleration again If problems persist adjust the carburetor Open the adjusting needle L by 5 min and retest acceleration If acceleration is smooth open the needle by another 3 5 min this should be done because the needle was previously set at a boundary value if atmospheric conditions changed during flight the problems might recur If the engine still has bad acceleration open the ...

Page 4: ...h ignition turned on This could lead to ignition damage 1 Make sure that the ignition is switched off the choke valve is closed and the throttle valve is about half opened Then give the engine 3 4 turns provided that carburetor is not overflowing If it is overflowing only give the engine 1 2 turns 2 Switch the ignition on open the choke valve set the throttle at slightly higher idle speed and give...

Page 5: ... remove the flange and take off the reed valve mind the gasket unscrew four M2 screws and remove the old valves replace them with new ones screw the screws back in and tighten them gently when reassembling make sure you fix the gasket correctly Mechanical faults of the engine must always be commit to a professional service department Service information At the latest after 200 hours let the engine...

Page 6: ...sure nipple gasket 1301 Reed valve case 0306 Carburetor flange 1302 Reed valve 0307 Carb flange gasket 1303 Reed valve screws 0308 Carb flange screws set 1304 Reed valve gasket upper 0401 Cylinder 1305 Reed valve gasket bottom 0402 Cylinder screws set 1306 Reed valve strap 0403 Cylinder nut 1307 Carburetor screws 0404 Cylinder gasket 1300 set 1301 1302 1303 1305 1306 0405 Exhaust screws set 0406 E...

Page 7: ...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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