66cc 2 stroke magnito problems

[MotorizedMatt]

I did the recommended proceedure to combat that oil leaking (see picture) And the bike worked great for the day, but about 1/2 a mile from home it took a dump again and wouldnt start. I took the magnito off cleaned it off and wouldn't start either. I'm ready just to get a new motor to put on it.

Anyone know of a site sponsor that sells the 66cc 2 stroke, just the motor, and will ship to CA?

 

[oologah]

I get mine from Gasbike.net or Kingsmotorbikes.com, they are the same company. The motor is $155 but the kit is only $149 take your pick. I think they're in Van Nuys. These are the Grubee engines. I think gas bike is in the sponsor list at the left..

 

[MotorizedMatt]

Update: I'm working on the bike right now and it is getting spark so I'm assuming the magnito isn't the problem right now. I took apart the carb and nothing is clogged, I'm perplexed as to what the issue is right now.

 

[GearNut]

Got milk?

Ha!

How is the wiring between the mag and CDI?
Are you running the factory spark plug wire and cap? They are garbage and cannot be relied upon.

 

[MotorizedMatt]

Got milk?

Ha!

How is the wiring between the mag and CDI?
Are you running the factory spark plug wire and cap? They are garbage and cannot be relied upon.

Nope. Im running a high grade wire with a longer cap (not sure what its called)

Problem now is the bike is getting spark, and I visually verified this, and it is getting gas, cleaned out the carb and checked the lines, yet it won't run now. I think the motor must be blown, right?

 

[GearNut]

Not necessarily. Does it have good compression?

 

[GearNut]

Also, have you tried starting it with starting fluid or carb cleaner?

 

[MotorizedMatt]

Not necessarily. Does it have good compression?

How would I check the compression? It seems like when I try to start it the motor has considerably more drag than before when it wouldn't start.

Haven't tried carb cleaner yet, would I just take the filter off the carb and spray it in or take the whole carb off?

 

[GearNut]

Leave the carburetor on, remove only the air cleaner cover and element.
Open the throttle all the way and give a small, short spray down the carburetor throat.
Close the throttle, leave the choke off, and try to start it.

To test for compression the shade tree way, remove the spark plug, leaving it connected to the spark plug wire, and tape it to the cylinder head as if you were checking for spark. This will protect the CDI box.
Now, hold your thumb firmly over the spark plug hole while turning the engine over with the back wheel. Sometimes this is easier with someone else's help. The compression inside the cylinder should easily be strong enough to blow air past your thumb.
If not, the compression is weak.

Engines only need 3 things to run.
1. Air and fuel at the proper mixture.
2. Proper compression.
3. Ignition at the correct time.

If your engine does not run, it is missing one of these.

 

[CrazyCabbie]

Kill switch?

Have ya tried to run it with the kill switch disconnected?
I had the same problem fer a week n just figured it out now... crappy kill switch, lol. I just unplugged it... gotta be sure the brakes work good to stop/stall it