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Discussion Starter · #1 ·
my exhaust for my 2 stroke 49cc pocket bike has come off. the bolts that hold it onto the engine one has snapped and broke the thread. so now there is no thread to put a screw into.

i was wondering if i could just get a brass pipe and stick it into the hole where the exhaust usually goes because the original exhaust cannot be screwed on now.

because its 2 stroke can you go without a thick exhaust. can i use a straight brass pipe.

im asking because i have no other alternative for an exhaust.

thanks
 

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PBP SENIOR M!LKER
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Just run No Exhaust... lol It will be messy and loud but fook it..... lol New heads are only like 10-20 bucks.. Hell, new HP Head Kits are less than 50 bucks now days... They also sell reverse drill bit sets, if you have acess to a drill press they could help get it out quick. Or drill it out with a normal bit and re tapp the hole..

Have fun!
 

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Discussion Starter · #3 ·
if i run it without an exhaust it could damage my pistons. i will loose heaps of power also.

where the exhaust connects to the motor there is a little box. in that box there are 2 threads welded for your screws to go in for the exhaust to attach. one of those welded threads broke. i am unable to weld another on because there is no way open this box to access the inside.
 

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PBP SENIOR M!LKER
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Interesting... What pocket bike did that come out of?

Weld the muffler to the box lol.. Or take a spring muffler manifold, weld that to that box, cut the old mount off the muffler, weld a spring Clip "U"' the the muffler use a spring. Like the HP fatty mufflers..

I'd love to see a pic of the bike and engine.... ;)
 

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Interesting... What pocket bike did that come out of?

Its an exhaust box off of a mini harley/mini chopper

if i run it without an exhaust it could damage my pistons. i will loose heaps of power also.

where the exhaust connects to the motor there is a little box. in that box there are 2 threads welded for your screws to go in for the exhaust to attach. one of those welded threads broke. i am unable to weld another on because there is no way open this box to access the inside.

Yes there is a way............ I gutted both of my exhaust boxes.... I did it with a screwdriver and a nice pair of needle nose,, ripped it apart by twisting off pieces and pulled it through the exit holes...

 

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Discussion Starter · #9 · (Edited)
Its an exhaust box off of a mini harley/mini chopper




Yes there is a way............ I gutted both of my exhaust boxes.... I did it with a screwdriver and a nice pair of needle nose,, ripped it apart by twisting off pieces and pulled it through the exit holes...
so is this exhaust box welded? if not can i just lift the metal flaps?

ive been searching the web for a new one but i don't know if anyone sells them. all i need is a new one to put on.
 
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