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Exhaust leak
Posted: Thu Jul 11, 2019 1:44 am
by Rajahdat
I have a v8, 72cc malossi cast iron, 28oko..
About last week I noticed my exhaust started to leak on to my block.
On my way home from work it leaked very bad, carb started to flood/ bog once I rev my bike.
I replaced spark plug and my exhaust gasket, cleaned carb.. did a test run and it still leaks(not as bad as my ride home), only bottom of exhaust leaks.
Any help would be appreciated..also not sure if this is the problem, one of my exhaust screws broke from block where you would screw in both bolts to hold down exhaust
Re: Exhaust leak
Posted: Thu Jul 11, 2019 8:59 am
by ntonar
Re: Exhaust leak
Posted: Thu Jul 11, 2019 10:26 am
by motormike
Rajahdat wrote: ↑Thu Jul 11, 2019 1:44 am
I have a v8, 72cc malossi cast iron, 28oko..
About last week I noticed my exhaust started to leak on to my block.
On my way home from work it leaked very bad, carb started to flood/ bog once I rev my bike.
I replaced spark plug and my exhaust gasket, cleaned carb.. did a test run and it still leaks(not as bad as my ride home), only bottom of exhaust leaks.
Any help would be appreciated..also not sure if this is the problem, one of my exhaust screws broke from block where you would screw in both bolts to hold down exhaust
DUH ! !...YES the broken exhaust bolt(stud) IS THE PROBLEM.
smh...mm 
Re: Exhaust leak
Posted: Thu Jul 11, 2019 11:04 am
by Rajahdat
It’s not the stud where exhaust and bore meets, it’s the screws where fan is the broke on block..I’ll post a pic soon
Re: Exhaust leak
Posted: Thu Jul 11, 2019 6:52 pm
by bonesv
Rajahdat wrote: ↑Thu Jul 11, 2019 11:04 am
It’s not the stud where exhaust and bore meets, it’s the screws where fan is the broke on block..I’ll post a pic soon
Yes probably the top one. I have drilled one out before and used a tap to thread it to use a new larger size bolt. If it's the block that broke off then you should replace the case half.
Re: Exhaust leak
Posted: Fri Jul 12, 2019 12:39 am
by Rajahdat
Sorry idk how to add pics on forums..
https://imgur.com/Pi4imxD
I still have piece that broke of could I jb weld it?
Re: Exhaust leak
Posted: Fri Jul 12, 2019 1:49 am
by bonesv
no JB Weld you need new case half. Is it af16 or af18? I have af18 if you need it.