Category: Leichtkrafträder Forum

  • Derbi Senda X-Treme

    Hello! Just a short time ago I bought a Derbi Senda X-Treme, bj 2005, 10,000km, 1A condition, around 140€ Everything original, engine runs perfectly and always starts the first time! What do you think, was it worth it? Another thing, it goes ORIGINAL 65km/h(the previous owners had to sign something where they confirmed that it goes faster than 45km/h)how can you bring it to about 75-80 without big change? Drossel out, then it goes 100km/h, that’s too fast, someone has an id ee? Besides, she has no sound at all, I just want a little better sound, what do you advise me? MfG Michi Ps:Thank you for your answers in advance!

  • Build a chain saw motor on the bike

    Chain saw motor to build the bike we have an old chain saw lying around and an old bicycle .. and since I came to the idea to install the motor to the bike. I have thought to replace the “gas button” for an Ebay mofa/moped gas train and to mount to the handlebar.. if that does not work, then just place the button on the handlebar. Gear and clutch? I would unscrew the pedals completely and attach a sheet with punched on one side, on which of the Motor comes. Connecting the engine with a pinned rod (to the emergency rear axle of “baby bike) to the front pinion I thought about taking out the middle pinion in the rear of the bike ( 3 gears) and drilling the hole in the middle bigger. So that if I start the engine and it is set to the 2nd gear, the pinion goes through and the machine stops. As soon as I then switch into the first gear I would have to have a good acceleration. a certain speed is reached (by pressing the gas button) then is switched to the larger sniper. What do you think of it? Do you have suggestions for improvement? Has any of you ever built such a thing or something similar? (vlt go cart or something?)

  • 2013 – Open (Tuning)

    Hey guys, have the first question right away, and that’s what the police won’t look so strict anymore, after the new regulation 2013, when you drive open, or with a tuning manifold – (2-stroke!) ? What can happen to you then with a control, or are the “punishments” also “harmless” or not? Will the green men even notice it with a control when you’re on the road with a tuning manifold? I mean those who don’t know how to do it… Can you explain it to me? LG

  • Hyosung gt 125 r pulls badly

    Hello, I have the following problem with my hyosung gt 125 r e3: If it is cold and you accelerate it does not pull properly up to about 8000 u/min afterwards it pulls for a short time better to then have power loss again. And sometimes at first it drives very slowly max. 100 kmh and pulls about 5-10 minutes very bad. In the morning after 2-3 minutes warm running I still do not get up the hail in the village, and from the village it drives at first only about 70 kmh. If it is warm however (morning after 15 minutes drive, or in the afternoon when it is warm after 5 minutes) she drives very well pulls and drives almost 140 kmh. Today it was very bad at about 10 degrees and rain I turned off from the work on a two-lane road in the inner town that goes there slightly uphill, there is 60 and I only got the first hill at 50, then it goes for a short time grade, then it has become better, and then when it went up again, she pulled almost as well as normal. he only starts with choce and runs the first time only with it, if I take it away too soon it goes off at the traffic light. In addition, the engine turns sometimes faster times more slowly and runs quite restless. Even if I hit the handlebar completely to the right it suddenly gives quite gas (ca 4-5000u/min) and if it has hit completely to the left it does not go at all. What do I have to do to get that into the grip? Air filter I once cleaned up, but it looks good but is from 20 09 and has been running since about 5-7000 kilometers. is that still ok or should I change the time? Carburettor to synchronize and clean up I do not dare myself. Should I have the carburettor cleaned and adjusted? Otherwise I have no idea what else I can do. I hope you can help me… Mfg Felix

  • How low does the bike have to be in order to drive safely? (too small -.-)

    Hello, I finally decided to make the A1 driver’s license. I wanted to buy an Enduro so much and looked at some models on the internet. My driving instructor then brought me to the hard ground of reality… For an Enduro I am much too small. I am a girl, not very heavy and only 1.65 m small. In the driving school I drive a chopper. I want to drive something like this later on GAR NO FALL. Also an athlete comes for me rather not I would like to have something in the direction of Enduro… Now I looked at the supermotos, which are a bit deeper than the enduros through the tires. At a dealer nearby I sat down on the Sachs ZZ and was thrilled by it. Even the price (3,200 euros) would be somehow possible. There was only this one problem again: sitting height 83 cm… I came to the ground with the toes and could keep the motorcycle in free standing. Also the descent fun The dealer immediately said that it fits everything and wanted to sell it to me immediately… It would even be possible to put the spring down and reduce the height a little bit. I was totally happy about it but the disillusionment came soon. Both my instructor and several acquaintances who ride the bike say that you MUST stand on the ground as a beginner with the complete foot, because otherwise you will tip the bike. i traffic lights etc. Now I don’t know what to do anymore. I really want to drive the Sachs ZZ, it’s even close to the price budget, but I’m afraid that I won’t be able to tame it later, fall over or something. You could put it through the lower spring, loosen the spring and possibly lower the cushioning of the seat, but is that enough? I’ll probably never be able to get up with the whole foot. At the moment (83 cm sitting height) I’m just standing up How far can the Sachs ZZ be made deeper? As a beginner you have to get up on the floor with the complete foot or rich toe tips? Are there lower alternatives for the Sachs ZZ (not more expensive than 2,500 euros!!!) Thank you Achja: This is the Sachs ZZ: http://www.sfm-bikes.de/bike.php?bike_id=363

  • 125ccm Yamaha yzf or Honda cbr?

    Hi people So briefly explains the situation: I’m just doing my A1 and I’ve already dealt a bit with the choice of my motorcycle and am clear for a Yamaha Yzf 125r. I think it looks great and technically it’s also quite ok. However, my parents asked a friend of them the two-wheeled mechanic is and he recommended me ne cbr 125. The reason is apparently with the engine. The cbr probably has a four-stroker which is not often tuned like the two-stroke he the yzf. Is that true? And does the technique really speak more against a yzf? Btw I heard that the yzf often has to be inspected and/or quickly breaks after a few thousand kilometers, which would be stupid, because the used machines usually already have a mileage of 20,000 KM. Well thank you already for answers

  • Hercules Prima 5 doesn’t run properly despite many new parts

    Hello, I have a Hercules Prima 5 built in 1995 which has only about 14,500km down. Model: 634 I have the following problem: It doesn’t really come on full-gas (sounds like half-gas) and has quite strong speed fluctuations. I have already done the following: -gasifier cleaned, air filter renewed, carburetor needle hung high down… -Other cylinder built on it because I thought the old “wasting” is -New piston+All seals including Simmerrings etc. -Other clutch and ignition tried -Electronics checked and the spark (funke blau lilac) -New oil pure etc. And changed the exhaust (have still a Dkw here so I simply “rebuilt” but also did not use anything. However, when trying around I noticed that on the cylinder there was electricity on it (was a cable pull on it that I wanted to take away there I then saw the spark flying) But only once. Have not yet had any round because I have painted my rim and have not yet built it. I am really finished with my knowledge! Please help me, do not want to sell the good part.

  • Total freshman, need tips!

    Servus, community! I’ve got a special contact to ask you questions, hoping for help and tips on your part. I’m 16 years old and I want to get my A1 driver’s license. The thing is, I have to earn the money myself, i.e. I’m working part-time to be able to afford the rags, wars still some support on the part of the parents that was already there, if I had more questions about the machines that were there and what would be ideal for me! So I find the Motorcross motorcycles quite c ool and would like to buy one too. But unfortunately I don’t know which recommendation is and I don’t know anything about it. ^^ If you could give me some tips, I would be happy if you could also look at the price, because if I go to work I get around 450.- a month and that’s well, not the yellow of the egg, is saving saving So what my “dream” motorcycle could do, moderate speed (no lame duck) Should also get along in the forest like I don’t know if the expectations are too high, but I hope I get help here, love greetings! I’m happy to be able to help you.

  • Light motorcycles… where and which ones?

    Hello community, I made my car driver’s license 2 years ago and of course have the class M in it. I have been driving a 50cc Suzuki Katana AY 50 WR for 1 year now, only unfortunately there was a lot of tinkering and each of the parts replaced or repaired will be too stupid and too expensive for me. Now I decided to get a new one and I also came to the 2 wheels, which look like motorcycles. So far I haven’t seen them here in Dortmund. Neither on roads nor The Yamaha TRZ-50 in my eye. Then I read on the Internet that there are also cheap brands, like Yamasaki or Zipp… but they should all come from China and hear from, the parts don’t last long until the first mistake. Well, let’s get to the question. Which brand can you recommend? I go up to approx. 240€. Cheaper would be better, of course, but quality is more important. And most importantly, where do you get light motorcycles? Here in Dortmund we have natural bikes. h many partners of Yamaha, Suzuki, etc… I would be happy about an answer. Unfortunately I am very inexperienced and my searches do not result in any successes. Thanks in advance. Mfg Florian

  • Conversion like from the 80s on my GT 80

    So, now have all the parts together for my conversion : steel flex brake line, box swing ( you have to change appropriately ), spring legs, machined cylinder head and 24 Mikuni carburettor. The only thing I no longer grow at my age is the Polybauer full cover with the M handlebar. The then registration of another translation ( 14/37 ) = 87 km/h had the GT already.