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Operating instructions 

 

MVVS 58 IRS No: 3001L 

MVVS 58 IRS Prosport No: 3001P 

MVVS 58 IRS Limited Edition No: 3001LE

 

 

 

 

Version 1.7 

Before using the engine, please read these instructions carefully. 

 

Congratulations on choosing the gas engine MVVS 58. 
MVVS 58 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 

42 mm 

Maximum power output ** 

8.5 HP / 6950 RpM 

Stroke 

42 mm 

Maximum torque ** 

8.8 N/m / 6600 RpM 

Weight of complete 
engine without ignition* 

1820 g 

Fuel 

Unleaded 95-octane 

fuel 

Weight of ignition unit  

165 g 

Lubrication 

Oil with petrol in 

mixture 1:40 

 

 

RpM range 

1000 – 7500 RpM 

 
*  Some  manufacturers  state  the  weight  of  incomplete  engines.  The  value  in  the  table  above 
stands for the weight of a completely assembled engine, including the spark plug, carburetor, 
drive washer and prop screws. 
**  Power  output  varies  with  the  exhaust  used.  The  value  given  in  the  table  stands  for  the 
maximum available power output. 
 
 

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 58 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. 

Summary of Contents for 58 IRS - V1.7

Page 1: ...available power output 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 58 engine 4 Always use original spare parts 5 Never tamper with the engine constructio...

Page 2: ...g on the speed of flight on the ground We do not recommend using propellers with which the engine reaches more than 7500 RpM on the ground Fuel Always use unleaded 95 octane petrol mixed in the proportion 40 volume units of petrol to 1 unit of Mobil Racing 2T oil If necessary quality brand name synthetic oil intended for racing two stroke engines can be used too Running the engine in use MVVS Raci...

Page 3: ... 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 needle by 10 min 60 degree If the engine s operation does not improve afterwards stop it and check the basic setting Set the adjusting ne...

Page 4: ... 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 the engine a few quickly turns If even after the fourth turn with the choke valve closed you do not hear a suggestion of the engine starting give the engine 2 turn...

Page 5: ...embrane and gasket in a correct order recheck the pressure hose attached to the carburetor Replacing the reed valve unscrew and remove the carburetor mind the gasket unscrew four M4 screws on the flange 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 reass...

Page 6: ...14S Electronic ignition unit ProSport LE 0702 Piston ring 3309 Spark plug 0801 Piston pin 1405 Ignition sensor fixing screws 0802 Piston pin retainer 3227 Carburetor Warranty The MVVS gas engines come with a three year guarantee against defects in workmanship and materials Only original buyers of the engines are eligible warranty claimants The warranty cannot be transferred with a change in owners...

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