NCY exhaust broke at head

Xsolusx · Post by **Xsolusx** » Wed Feb 10, 2016 5:37 pm

900 miles.

Started this morning and it was super loud. Shut it off immediately, checked underneath, exhaust broke off at the head.

Lol my blackjack has 2000 miles and I have a broken Prima and broken NCY exhaust.

scootERIK · Post by **scootERIK** » Wed Feb 10, 2016 5:50 pm

Haven't you also broken the bolts that hold the exhaust on several times?

If so I would start to wonder if there is some bigger problem with your scooter.

Xsolusx · Post by **Xsolusx** » Wed Feb 10, 2016 6:59 pm

scootERIK wrote:Haven't you also broken the bolts that hold the exhaust on several times?

If so I would start to wonder if there is some bigger problem with your scooter.

Yeppppppp.

paracer · Post by **paracer** » Wed Feb 10, 2016 7:50 pm

I would be checking for a couple things.

No. 1, vibration. Do you feel any vibrations that you would consider excessive? Vibrations cause things to break.

No. 2, loose stuff elsewhere. Is there something else that is loose that can impact the exhaust? Does the suspension/swingarm move around excessively? How about the mounts for the muffler?

Vibration will cause things to break over time. Solid impacts usually take just a few good whacks.

Xsolusx · Post by **Xsolusx** » Thu Feb 11, 2016 3:20 am

paracer wrote:I would be checking for a couple things.

No. 1, vibration. Do you feel any vibrations that you would consider excessive? Vibrations cause things to break.

No. 2, loose stuff elsewhere. Is there something else that is loose that can impact the exhaust? Does the suspension/swingarm move around excessively? How about the mounts for the muffler?

Vibration will cause things to break over time. Solid impacts usually take just a few good whacks.

It does vibrate but I don't think excessively. I honestly don't know lol. It's been looked at by 3 places for the sheared off bolt problem and nobody can find anything wrong.

babblefish · Post by **babblefish** » Fri Feb 12, 2016 4:34 am

Stop crashing....lol, jk

PeteH · Post by **PeteH** » Mon Feb 15, 2016 7:07 pm

Starting to smell like a bent frame.

dasscooter · Post by **dasscooter** » Mon Feb 15, 2016 7:48 pm

PeteH wrote:Starting to smell like a bent frame.

How would that affect the engine/exhaust?

paracer · Post by **paracer** » Mon Feb 15, 2016 10:00 pm

It could be something contacting the exhaust that normally would not if the frame is where it should be.

Either that or we have a rider hitting potholes big enough to bend the frame and break the exhaust in the process... not likely though.

I'm still really curious if it isn't just the exhaust/muffler not securely fastened to its mounts.

sc00ter · Post by **sc00ter** » Tue Feb 16, 2016 5:28 am

Due to the fact that I didnt kill a NCY exhaust and the new owner of the Buddy 125 didnt kill it either (crashed on exhaust side twice!) Im willing to bet your failure is vibration related. Do lots of WOT runs? A side check that sounds stupid, but is the rear shock worn out? Engine hanger bolts snug? I had a Honda Helix break MANY exhaust until is was discovered that the rear shocks (2 on a Helix) were not working the same, and the exhaust side was picking up excess stress. So let up on the WOT runs and/or try replacing the rear shock, and check all the engine mounting points.