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Romet RR 50 Tachometer Not Working: Battery Replacement, Cable Connections & Erratic Display

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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
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  • #1 16540951
    sagem173
    Level 9  
    Hello! I have become the owner of a Romet rr 50 for a long time, after buying quite cheap, the tachometer does not work, so I thought the battery discharged is not suitable for anything, buy a new one and so I replaced it and the tip jumps slightly from orots to 1000 max and jumps like crazy what can be cause?

    Added after 48 [minutes]:

    ok, a small update to this tachometer are 3 black and yellow, green and black cables when these cables are pressed on the tachometer, i.e. loose contacts?
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  • #2 16541831
    aaanteka
    Level 42  
    What do you mean, stretch the cables?
    For the tachometer to work, it must have power and pulses that it counts, so the installation must be operational.
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  • #3 16543831
    sagem173
    Level 9  
    Ok, the problem is solved, but the topic is not closed yet :) What was the reason ?
    I corrected the contacts on the board on the pulse cable and it flashes, it's nice to look at.
    Taking the opportunity, I had the original gear, front 12 teeth and 47 rear teeth have already passed, so I changed to new ones with the fact that the rear with 46 teeth and the front 17 the fact I gained longer gears, the problem is that in the 3rd gear the meter shows 86 km / ha, when driving in 4th gear, the power drops automatically, the speed is 65, this is the maximum I got down the hill, did I exaggerate with this output gear or does the problem appear somewhere else? model of the moped Romet rr 50
  • Helpful post
    #4 16543940
    stasiekb100
    Level 29  
    You hear if the engine is overloaded. You increased your speed 1.5 times and your thrust decreased 1.5 times.
  • #5 16543946
    sagem173
    Level 9  
    well, 4th gear is now such an overdrive what do you suggest?
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  • #6 16543949
    stasiekb100
    Level 29  
    How many have you previously rode 4 to the max.
  • #7 16543951
    sagem173
    Level 9  
    no cisnol full counter revolutions 95

    Added after 47 [seconds]:

    and now 4 I knock on 4/5 k turns torment

    Added after 47 [seconds]:

    and at 3, normally full speed, I throw 86 + 4 and 65
  • #8 16543960
    stasiekb100
    Level 29  
    Now you'd do 137.5 but you don't have a moment
  • #9 16543962
    sagem173
    Level 9  
    that is, the flap is to be understood, the teeth are to be reduced to 15 teeth for delivery?
  • #10 16543970
    stasiekb100
    Level 29  
    In my opinion, the 12th or 13th. Your rear has been reduced by 1 which increased your speed by 2 percent.

    I will count you for 15. 15/12 * (47/46) * 95 = 121.3 so much he would go, but does the engine advise?
  • #12 16544024
    kortyleski
    Level 43  
    Computing sucks. Since you increased the front end almost without changing the rear, the speed had to drop. Take a ride with a dual-gear bike and see how it works
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  • #14 16545273
    stasiekb100
    Level 29  
    kortyleski wrote:
    Computing sucks. Since you increased the front end almost without changing the rear, the speed had to drop. Take a ride with a dual-gear bike and see how it works
    If you suck mine, write better. I am pleased to judge.
  • #15 16902158
    sagem173
    Level 9  
    And solved the problem:
    - I did at the factory without combining.
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Topic summary

The discussion revolves around the malfunctioning tachometer of a Romet RR 50 moped. The owner initially suspected a dead battery, which was replaced, but the tachometer still exhibited erratic behavior, with the needle jumping between 0 and 1000 RPM. Further investigation revealed loose contacts on the pulse cable, which, when corrected, resolved the tachometer issue. The owner then modified the gear ratios by changing the front and rear sprockets, leading to performance concerns in higher gears. Responses included advice on gear ratios and engine performance, indicating that the changes may have resulted in a loss of power and speed. The conversation also touched on potential upgrades and modifications to the engine without requiring additional electronic changes.
Summary generated by the language model.
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