Stop/Start button

Discussion in 'General Questions' started by willwills90, May 21, 2015.

  1. willwills90

    willwills90 New Member

    Hey guys,

    is it possible to install a stop/start switch onto a motorised bike, i mean i dont even care if its just a start butoon, i just want to be a ble to turn it on easily,

    any help appreciated,

    thanks guys

  2. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    How old are you?
    Do you drive a car?
    When you say motorised bike do you mean a 66cc / 80 Chinese 2 stroke?

    Do you ride one of these motorised bikes?
    What is your problem with pedaling then dropping the clutch to start?

    A pull start is available but adds a lot to the width of the motor.

    They have stop buttons, that would be the kill switch.
  3. willwills90

    willwills90 New Member

    hi bro,

    lol if you really want to know, im 15, and yes i have a chonese 80cc, why does everyone call them 66/80????

    anyway, how would i go about installing the pull cord, ive seen them on ebay, but what exactly do i do???

    as for the button i was thinking more along the lines of a motorbike where you hold down a button and it starts turning the engine

    Also on another note, whats the correct way to install the chinese kits, some have a chain attached to back wheel, others have a chain attached to pedals, what is best ???????

    anyway thanks for your help,

  4. butterbean

    butterbean Well-Known Member

    They call them 66/80 because they are really 66cc (some are 68). The Chinese call them 80cc because they measure the combustion chamber, but that is not the correct way to measure displacement. Displacement is what you call the size of the cylinder, normally measured in cubic centimeters for small engines and liters for bigger engines like cars and trucks. So the actual displacement of your engine is 66cc, or cubic centimeters. Now as far as starting with the push of a button, that would be what's known as electric start. At least one person claims to have built an electric start for the Chinese two strokes, but he never shared how he did it and he hasn't been around the forums for a long time. Honestly though, if you're 15 and already too lazy to pedal a bike to start the engine, you're going to have problems in life. The pull starts they sell for these engines are junk and break very easily. If you really want to install one, you will need a wider pedal crank. A lot of vendors sell them and they're not hard to find. But the 4 stroke kits come with a pullstart that isn't junk like the 2 stroke ones are. You will still need a wider pedal crank to use a 4 stroke. Now as far as the bikes with the chain going to the pedals, they have something called a shift kit installed. The shift kit adds a jackshaft to the bike, which allows the engine to use the bikes gears as a transmission, thus giving the rider more than one speed for motoring. As far as which is better, everyone has their own opinions. Some love the shift kits, others feel they require too much maintenance.
    willwills90 likes this.
  5. willwills90

    willwills90 New Member

    thanks bro, thats really hellpful,

    its not that im too lazy to pedal, its that i like having it as close to a motorbike as possible seeing as im not allowed one.

    i cant afford a 4 stroke, and anyway, i only just bought my 2 stroke haha
  6. butterbean

    butterbean Well-Known Member

    Actually the old style motorbikes were just like that, pedal and dump the clutch. It is a "real" motorbike.
  7. butterbean

    butterbean Well-Known Member

    The first motorcycles had pedals
  8. MotorBicycleRacing

    MotorBicycleRacing Well-Known Member

    If you can't afford stuff then an electric start would be in that list of unaffordable and very expensive wants. ;)

    It's possible but would require a lot of mechanical ability or the money to pay a machinist to build for you.
  9. willwills90

    willwills90 New Member

    yeah, ive been looking it up, im just gonna wait till im older and got a job, then ill get me a nice bike like a kawasaki ninja or something similar ;)
  10. willwills90

    willwills90 New Member

    actually unrelated but i got a couple more questions, what oil should i use, stuff for 2 stroke scooters or just motoculture oil (dont know name in english, just general things like hedge trimmers, chainsaws, strimmers, etc) and is it possible to get a analog speedometer and counter, and what amount of tme should i use the 16:1 burn in ratio beofre going to 25:1?

    thanks guys, youre so hepful, i really appreciate you taking time to answer my questions!!!

  11. butre

    butre Well-Known Member

    stop using 16:1 now, skip 25:1, and go straight to 32:1. too much oil just fouls the plug and blows out the tailpipe. Just use any 2 stroke oil you can get for a reasonable cost.
  12. The_Aleman

    The_Aleman Active Member

    It should be noted that it is not wise to use marine 2-stroke oil. The 2-stroke oil should be for air-cooled engines.
  13. willwills90

    willwills90 New Member

    yeh, im using 2 stroke oil made for mopeds, 8.99 for 2 l, best price i found anywhere
  14. PocketBiker

    PocketBiker Member

    I am still in the "breaking in the 2 stroke engine" stage, so I did a lot of reading about it (which is what you want to do) The most conservative break-in mixture is 16:1, but I think it is really richer than you need.... This is what I found:

    During the break-in period (1st 4 tanks of fuel, (peanut tank) the ratio is 20to 30parts gasoline to 1 part 2 cycle oil. After the break-in period, the ratio is increased to 30 to 35 parts gasoline to 1 part oil. The engine crankshaft bearings are lubricated from the oil in the gas mix. A rich break in oil mixture ensures bearings will not cease during engine break in period. WARNING -do not use synthetic oil to break this engine in, use 2T 2 stroke oil.

    There doesn't seem to be any RIGHT answer to this question, but the above mixtures are right in the middle of the range. I chose 20:1 for the break in (which I'm still using) as I want to stay on the richer side of the scale to be as kind to my engine as possible. Then, I'll gradually decrease the oil down to 30:1 or maybe 35:1. I heard of some even running 50:1 after break in, but again, if you want to be a little more in the "safe range", you might want to stay in the recommended range above.

    As for the old style speedometer. They come with a plastic thread or a metal thread on the back of the speedometer housing. Try to find one with the metal thread as the plastic thread strips too easily when screwing the metal cable connector to it. You want metal to metal.

    Wish I could ride my MB around France!

    Good Luck,

    willwills90 likes this.
  15. willwills90

    willwills90 New Member

    thanks jim,

    gonna use 20:1 from now on, ive not used at all since i put it together, been so busy lately with exams at school,

    anyway yeh, thanks for that info really helpful