how much Wt.

gooseneck · Dec 20, 2015

how much weight approx. should a exhaust pipe weigh.
i have some fittings and pipe already but not fabd' yet and the parts weigh in @4Lbs.

sbest · Dec 20, 2015

Lighter is better.
The longer and the heavier it is the more likely you should make mounts to the bicycle frame.

Steve

gooseneck · Dec 21, 2015

very good then, just finished with a different configuration and got the weight down to a
lil' over 2lbs.
from what i have read i'd strap it even if it did not need it.
just curious on Wt. i have been weighing any and all parts as i go along so as i scratch
build to make stronger and lighter.

2door · Dec 21, 2015

Assuming you're talking about a Chinese 2 stroke, in-frame application, you'll want to consider that unless supported elsewhere, the pipe and muffler are only held on by those two little 6mm fasteners at the cylinder. A support or clamp is important even when using the stock kit supplied exhaust system. Any added weight or length will require something to keep the stress off the engine attach point.

Tom

Chaz · Dec 21, 2015

I would guess the stock pipe is about 2 pounds. Since you have the tools to rig up your own exhaust then definitely put some kind of brace on it to the frame. If I had the equipment I'd be welding a tab on the frame and the muffler.

Those little studs take a beating from vibration. My current engine runs pretty smooth but it only took a couple of months to break the stock muffler strap and crack the weld at the muffler header pipe connection.

Also, just a thought, if you can aim your muffler towards the rear it will seem a bit quieter for you. The stock set up is almost straight down and the exhaust note bounces right back at the rider.

bairdco · Dec 24, 2015

Using a strap or welding a mount also cuts down on a lot of vibration.

I'd say a fair guess is that 99% of the people who've ride have had an exhaust fall off.

The other one percent quit, broke something else, or sold the bike before the exhaust had a chance to fall off.

Chaz · Dec 24, 2015

bairdco said:
Using a strap or welding a mount also cuts down on a lot of vibration..

You make a very good point, Bairdco.

I'm just seconding the motion in case someone is reading and thinks "nah, I'll just skip the strap businsess".

bairdco · Dec 25, 2015

I've said before, if your bike vibrates a lot, put your knee on the tank and your foot on the pipe and you'll feel it diminish.

CarpsCustoms · Dec 25, 2015

I like the pocketbike pipe called "Pro-Jet Pipe" it gives the motor a great increase in mid range and top end power... and it comes with a tab welded on the side of it, just before the muffler portion so you can support it by the frame/ seatpost
the site says the photo needs to be resized and im terrible with this bs soo just google it lol

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