2008 JMSTAR 250 Noisy Exhuast. By imitebewrong (Read 1,384 times)

[imitebewrong]

I have a 2008 JMSTAR Epsilon 250.
It has the CFMoto engine.
I believe its the same as a Roketa 250

Anyone with one of these bikes have an issue with the exhuast being VERY loud?

Are the stock mufflers on these just not very good at silencing?

Is there any ways anyone here has quieted the noisy exhuast?

I removed the exhuast and put a new exhuast gasket in there, but it did not help at all.

Thanks!!

[Cruiser]

Although the engine to muffler connector is short, it really is a 3 piece affair. Check out this diagram.

There are really 2 gaskets - number 1 and number 8 in the diagram. When the system gets older, part number 4 may also have to be replaced. Hope this helps. Which gasket did you replace? These systems are very quiet when running properly.

[imitebewrong]

Thanks for the Reply's

Well it seems like I only had the one exhuast gasket.
I see the three pieces that i need, I also do not have that hose clamp at the connection of the muffler to the engine.

I checked closer and the sound is definitley coming from the exhuast port, not the muffler itself.

I'll order the exhuast gaskets.


Thanks again guys.

[imitebewrong]

Problem fixed. Its very quiet now!! ;D

Picked up a Helix exhuast gasket at my local honda dealer.

Put it on and worked like a charm. Nice and quiet ride.... Even quieter than my CM400 with a silencer.

Thanks guys!

Now another question... Anyone know a site I can find a cheap 13x3.5 rear rim?

I can find some for around 80 dollars. Anyone know of a cheaper price, or maybe a compatible rear tire with different dimesions? Like say maybe a 13x2.5? 13.5x3 seems hard to find.