Motobi Ardizio125 Sport 2 stroke
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Thread: Motobi Ardizio125 Sport 2 stroke

  1. #1
    Junior Member
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    Dave Lloyd
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    Motobi Ardizio125 Sport 2 stroke

    Hi All,

    Does anyone have any knowledge or experience of the Motobi Ardizio125 Sport 1955 please?

    I have just bought a basket case and I am going to resurrect the little beauty, but the bits of info I have found is limited.

    I was hoping someone would know about paint codes etc and also the mechanical tech general items etc.

    Any info would be very much appreciated.

    Thanks

    Dave

    Motobi Ardizio125 Sport 2 stroke-general-parts-2.jpgMotobi Ardizio125 Sport 2 stroke-general-parts-4.jpgMotobi Ardizio125 Sport 2 stroke-engine-ls.jpgMotobi Ardizio125 Sport 2 stroke-tank.jpg
    Last edited by lloydy1; 04-29-2017 at 01:36 AM. Reason: Added some pics

  2. #2
    Senior Member
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    ron daly
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    Hi, i am with the Benelli Motobi club GB and they seem to have people that should be able to help, someone may come alone here and help you out,

  3. #3
    Junior Member
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    Dave Lloyd
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    Hi Ron, thanks for the reply.

    I am a member of the Benelli/Motobi owners club.

    John kindly identified and dated the bike for me. I have found a bit of a maintenance manual in Italian, but other than that not a lot out there.

    Cheers

    Dave

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  5. #4
    Senior Member
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    steve peace
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    Hi
    Just mail pm me and I may be able to help in some info for your Benelli Ardizio the club does have other members with these machines
    Cheers Steve

  6. #5
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    Patrick Owens
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    The owners manual you most likely have does have a not of good info in it but I've not found much else out there. I have some chain and carb references that list the Ardizio but that's about it. As for parts, pistons, clutch plates, and rear sprockets seem to be about all that can be found NOS, and even used parts are hard.

    I've probably put ~1200 miles on mine in time distance events but have the top end off now for a new piston and small-end bushing.

    Here's some inspiration to get the bike back together, they are a real joy to ride.

    Motobi Ardizio125 Sport 2 stroke-img_0100.png

  7. #6
    Junior Member
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    Dave Lloyd
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    Quote Originally Posted by Oops View Post
    The owners manual you most likely have does have a not of good info in it but I've not found much else out there. I have some chain and carb references that list the Ardizio but that's about it. As for parts, pistons, clutch plates, and rear sprockets seem to be about all that can be found NOS, and even used parts are hard.

    I've probably put ~1200 miles on mine in time distance events but have the top end off now for a new piston and small-end bushing.

    Here's some inspiration to get the bike back together, they are a real joy to ride.

    Click image for larger version. 

Name:	IMG_0100.png 
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ID:	23345
    Thanks for the guidance.

    Apologies for the delay in coming back to you. i have been away.

    I have been searching Ebay Italia and there seems to be some bits and bobs that come up on there.

    It is going to be my winter project and should be up and running by next spring. I have found a company who sells the fishtail silencer, but looking at an old picture the down pipe had some sort of expansion box. yours just has the straight down pipe as does mine. Has this had any affect on the running of the bike?
    Attached Images Attached Images  

  8. #7
    Junior Member
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    Patrick Owens
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    I've not seen any issues with not having that expansion box on the exhaust, other than it's a bit louder at full throttle. not even sure if they always shipped with that or if it was just shown in early promotional pictures.

    I run exhaust and cylinder head temp gauges in events and the head temp was very much on the high side, but retarding the timing to deal with modern fuels brought it down to a reasonable range.

  9. #8
    Junior Member
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    Dave Lloyd
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    Quote Originally Posted by Oops View Post
    I've not seen any issues with not having that expansion box on the exhaust, other than it's a bit louder at full throttle. not even sure if they always shipped with that or if it was just shown in early promotional pictures.

    I run exhaust and cylinder head temp gauges in events and the head temp was very much on the high side, but retarding the timing to deal with modern fuels brought it down to a reasonable range.
    Hi Patrick

    Interesting to know. Would you mind me asking at what degree you set the timing? and what ratio of mixture do you use with the fuel?

    Thanks Dave

  10. #9
    Junior Member
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    Patrick Owens
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    The manual calls for 5% oil mix but most modern oils will not mix well at that ratio. I use Motul 800 RoadRace (designed to mix at 3%) and mix it at 4% and it seems to work well.

    Just went back and checked my notes on the timing. Not sure where I found the point gap but I have it noted and set to 0.4mm. At that gap the timing as the bike came to me was 35° BTDC. I retarded it as far as the stator would allow and ended up at 28° BTDC. While I still find that number shockingly large, in practice is't just making up for the large and inefficient shape of the combustion chamber. I try and keep the head temp in the 350-450F, and the 28° timing seems to do this. with the timing set higher the head temp would sometimes go as high as 575F.

  11. #10
    Junior Member
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    Dave Lloyd
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    Hi All, I am scratching my head over the wiring on my Motobi Ardizio 125 2T. I have three wires coming from the magneto/Generator?? red, white and yellow. I am totally rubbish when it comes to electrics and for the life of me I can not figure out what each wire does. I am following the wiring diagram in the maintenance book. It tells me to connect the yellow to the coil. Which side?? II or I?? what wire do i then connect from the other side of the coil and where does it go?? I have been on line looking at similar generators and they all seem to have a wire coming from the points to the coil with a switch. I am pulling my hair out with it!!!! I hope someone can help me please????

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