As some might recall, my new rider 18 year old bought a slightly used Chinese Dual Sport 250. We’ve upgraded a few things, rewired some things, adjusted others. Broken some things; he bent the shift lever because he dropped it in the driveway. I broke a mirror because I dropped it in the grass jumping out of the ditch behind my house. Some things never change. 
It is a hoot to hoon on. Can’t lie.
I was away on vacation last week, he didn’t want to wait til I got home to put an oring chain on it. Original was very kinky and looks to have never been lubed. So I had him take it to the guy who I get tires and other bits from. My guy got the kid fixed up with a new chain. On the way home, apparently, his throttle cable lets go. Somehow, he managed to ride the bike about 2 miles home clutching with left and pulling on the bit of the throttle cable still stuck in the top of the carb with his right. I had such a flashback of my own dirt-bike riding youth doing similar dumb sh!t. Chip off the ole block. Throttle cable broke in the middle of the sheath. That’s a new one for me. Waiting on one from eBay that should work.
Here’s how the rest of the phone call went:
KID: oh yeah, dad, I bought an upgrade exhaust, should be here when you get back.
ME: ………
KID: yeah, I watched a YT video on the install, should be easy, hardly any modification
ME: :mad-new::stupid::hopelessness: (inaudible over the phone). - see ya when I get home. Stay off that bike.
Anywho,
Once I get into it, here’s where I’m at about 3 hours later. Bike is it pieces, I cut a hunk off the airbox with a miter saw, cut a sheet of ABS plastic with the band saw to cover the hole. ABS cement is curing.
New exhaust actually seem pretty nice. The 3 pieces fit together pretty snug. My question is at the joints, should there be some type of sealant, gasket, something. Or is this bike just expected to have a small amount of exhaust leak?
It is a hoot to hoon on. Can’t lie.I was away on vacation last week, he didn’t want to wait til I got home to put an oring chain on it. Original was very kinky and looks to have never been lubed. So I had him take it to the guy who I get tires and other bits from. My guy got the kid fixed up with a new chain. On the way home, apparently, his throttle cable lets go. Somehow, he managed to ride the bike about 2 miles home clutching with left and pulling on the bit of the throttle cable still stuck in the top of the carb with his right. I had such a flashback of my own dirt-bike riding youth doing similar dumb sh!t. Chip off the ole block. Throttle cable broke in the middle of the sheath. That’s a new one for me. Waiting on one from eBay that should work.
Here’s how the rest of the phone call went:
KID: oh yeah, dad, I bought an upgrade exhaust, should be here when you get back.
ME: ………
KID: yeah, I watched a YT video on the install, should be easy, hardly any modification
ME: :mad-new::stupid::hopelessness: (inaudible over the phone). - see ya when I get home. Stay off that bike.
Anywho,
Once I get into it, here’s where I’m at about 3 hours later. Bike is it pieces, I cut a hunk off the airbox with a miter saw, cut a sheet of ABS plastic with the band saw to cover the hole. ABS cement is curing.
New exhaust actually seem pretty nice. The 3 pieces fit together pretty snug. My question is at the joints, should there be some type of sealant, gasket, something. Or is this bike just expected to have a small amount of exhaust leak?
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