Engine Trouble Cracked Engine???

[micromaster22]

So about a month ago I was riding the bike and slipped on wet pavement and tipped the bike over on its side. It ran fine afterwords and then randomly after a few rides I started experiencing idle issues. My idle would be very high even with the trottle untouched and the screw backed out almost completly. I parked the bike because I also lost a peddle and I have been busy but I just got bored so I went looking for the leak.

Initially after spraying carb cleaner around the engine found a leak at the carb and intke connection. I temporaily taped it up to see if that was my only leak, Its not.

After spraying the engine again I found a crack just above the magneto housing where the cylinder meets the bottom end.

How can I fix this crack? I have not removed the cylinder yet to see if it is bigger underneath. This engine has recently passed the break in period and has been my third engine since I got into this whole motorized bike thing.

 

[Street Ryderz]

So about a month ago I was riding the bike and slipped on wet pavement and tipped the bike over on its side. It ran fine afterwords and then randomly after a few rides I started experiencing idle issues. My idle would be very high even with the trottle untouched and the screw backed out almost completly. I parked the bike because I also lost a peddle and I have been busy but I just got bored so I went looking for the leak.

Initially after spraying carb cleaner around the engine found a leak at the carb and intke connection. I temporaily taped it up to see if that was my only leak, Its not.

After spraying the engine again I found a crack just above the magneto housing where the cylinder meets the bottom end.

How can I fix this crack? I have not removed the cylinder yet to see if it is bigger underneath. This engine has recently passed the break in period and has been my third engine since I got into this whole motorized bike thing.

Jb weld smudged into the crack on both sides or buy new case half.

 

[micromaster22]

Jb weld smudged into the crack on both sides or buy new case half.

Thank you. Hopefully that takes care of my ridiculous air leak and high idle. Ill pull the clutch in and it sounds and feels like its going to explode.

 

[crassius]

It may be a bit worse than that - I'd jbweld as above, but that bolt helps to seal the case halves. I'd also use an impact driver to tighten all case bolts, then clean case a bit along front seam and run a bead of jbweld along that seam top & bottom just to be sure. With a bit of luck, this is fixable.

 

[Guest-55885]

So about a month ago I was riding the bike and slipped on wet pavement and tipped the bike over on its side. It ran fine afterwords and then randomly after a few rides I started experiencing idle issues. My idle would be very high even with the trottle untouched and the screw backed out almost completly. I parked the bike because I also lost a peddle and I have been busy but I just got bored so I went looking for the leak.

Initially after spraying carb cleaner around the engine found a leak at the carb and intke connection. I temporaily taped it up to see if that was my only leak, Its not.

After spraying the engine again I found a crack just above the magneto housing where the cylinder meets the bottom end.

How can I fix this crack? I have not removed the cylinder yet to see if it is bigger underneath. This engine has recently passed the break in period and has been my third engine since I got into this whole motorized bike thing.

I got a crack on my engine under the crankcase so that unburdened fuel leaks out. Try JB weld for steel. It might help with the other crack too.