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...

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.

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...

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...

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.

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...

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...

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

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...

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.

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?!!

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...