Hey guys!
This is my first post and also my first time dealing with a motorized bike. So I bought a cruiser frame from a lady. I did not ride it or anything when I bought it. I then bought a Chinese "80cc" motor kit and got every installed. Well noticed my bike crank was too narrow no matter how I mounted the motor. So I ordered a 3 piece wide crank kit along with a bent fork and crown extender. I just installed everything and tried starting it today. No start and extremely hard to pedal. The bike was a 8 speed that I took that out and made it a single speed on the smallest sprocket so it should be easy to pedal. So a friend and I started looking at different things. It got fuel but the pedaling was way to hard to do a spark test but we did hear compression. I took the cover for the magneto off and noticed the ground was hooked up to the same spot as the blue power wire. I cut the black wire and grounded it to the bolt holding in the magneto. Still no spark and hard to pedal. Checked tension and it had about 3/4 slack I. The chain so that is in line. Took the engine kill off and same problem. I noticed the back wheel wobbled pretty bad so I took a better wheel I had and put the rear sprocket on that and same problems. My friend had a spare cdi that was tested good on his bike and still nothing. I have exhausted everything I know to do besides I did not check gap on the uh and the number on the plug matched known good numbers for these motors. Plug had no carbon marks which indicates no fire and did not smell of gas. So after all of this do any of you know of anything else that can cause no spark and what can cause it to be super hard to pedal the bike? And we have adjusted the clutch to where there is no slack and she. You hold the clutch in you can roll the bike no problem and you release the clutch and the rear tire does not move when rolling it around.
This is my first post and also my first time dealing with a motorized bike. So I bought a cruiser frame from a lady. I did not ride it or anything when I bought it. I then bought a Chinese "80cc" motor kit and got every installed. Well noticed my bike crank was too narrow no matter how I mounted the motor. So I ordered a 3 piece wide crank kit along with a bent fork and crown extender. I just installed everything and tried starting it today. No start and extremely hard to pedal. The bike was a 8 speed that I took that out and made it a single speed on the smallest sprocket so it should be easy to pedal. So a friend and I started looking at different things. It got fuel but the pedaling was way to hard to do a spark test but we did hear compression. I took the cover for the magneto off and noticed the ground was hooked up to the same spot as the blue power wire. I cut the black wire and grounded it to the bolt holding in the magneto. Still no spark and hard to pedal. Checked tension and it had about 3/4 slack I. The chain so that is in line. Took the engine kill off and same problem. I noticed the back wheel wobbled pretty bad so I took a better wheel I had and put the rear sprocket on that and same problems. My friend had a spare cdi that was tested good on his bike and still nothing. I have exhausted everything I know to do besides I did not check gap on the uh and the number on the plug matched known good numbers for these motors. Plug had no carbon marks which indicates no fire and did not smell of gas. So after all of this do any of you know of anything else that can cause no spark and what can cause it to be super hard to pedal the bike? And we have adjusted the clutch to where there is no slack and she. You hold the clutch in you can roll the bike no problem and you release the clutch and the rear tire does not move when rolling it around.