spark

  1. O

    Engine not starting, despite good spark

    My 80cc engine from China (eBay) has not started since it was assembled a week or two ago. Fuel is getting to the engine, as the spark plug was wet when checked after cranking - for some reason it refuses to burst to life upon releasing the clutch. The engine will turn over after releasing the...
  2. A

    Replaced every electrical component, still no spark

    I have replaced every electrical component on my 66cc 2 stroke and still VERY weak/no spark. New coil, 2 new CDI, new magnet, new spark, everything. Any pro tips are appreciated.
  3. I

    no spark after getting wet

    this is my first post. Purchased motorbike for a 100 last night. the guy did not seem very trustworty . this is the story he told me. He said he bought this bike 9 months ago in Seattle, because he lost his driving privileges due to dui. It was riding fine and all that, then when he was...
  4. TheNecromancer13

    Aftermarket Magneto

    I am now convinced that the stock magneto was made by Satan. I do not want to buy another one. Instead, I want to get one that was made for a chainsaw or a weed whacker or something. Hopefully that would be higher quality and won't fall apart in a week. Anyone done this before? Anyone know what...
  5. TheNecromancer13

    Spark plug wont fire in cylinder

    So my spark plug fires just fine when I hold it against something, but when I try to get it to fire in the cylinder it wont fire no matter what I do to it. Any ideas? The engine is a grubee skyhawk raw racer 66cc and I assembled it last night and now can't get it to start cause of this.
  6. S

    No spark. CDI?

    While on a cruise on my motorized bike the other day, it just bogged out and stopped running. since then it has not started. I can peddle it, release the clutch and the engine with turn over but will immediately die (i assume because there is no spark). I have since tested the spark by holding...
  7. K

    Engine runs very fast, then slow, before cutting off

    Alright guys, I need some help. I bought this bike off of craigslist less than a week ago, I have not had a peaceful ride on it since. Ever since I bought the bike, it had an issue where it will start going really well and driving perfectly, before it starts speeding out of control and then...
  8. D

    Spark plug colour

    okay this is what my spark plug looks like at the moment after doing a plug chop on full throttle should i go leaner or richer i think i have to go richer? photo is below http://motorbicycling.com/picture.php?albumid=794&pictureid=4417
  9. Ancient Order

    Spark Plug Popped Out!

    I was just riding along earlier today and I noticed the engine wasn't really putting out a lot of power when I turned up the throttle and all of the sudden POP! I look down and the spark plug is dangling from the connector and I have to pedal home. This is really weird as the threads don't...
  10. M

    How's my plug look?

    How's my plug color looking? I'm running some cheap full synthetic oil at 32:1 at 0-100ft above sea level, on the coast. I've done no tuning to the carb what so ever. Plug has maybe 250 miles on it.
  11. K

    where can i get a new sparkplug wire?

    my spark plug boot fell apart 3rd day of use,and im not sure what to do now. what i need is the 7mm wire and a boot with the little metal connector. where on earth can i get these things?!!
  12. D

    No Spark Even With new CDI- Help Please!!

    Hello all! Was riding my bike the other day and it died slowly. After a bit of figuring I replaced the CDI ( used). It worked! Then about two weeks later and 150 kms of riding it died again very similar to how it did before. I did not notice going over bumps or anything when it died and the...