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View Full Version : Dechoking the old twostroke expansion chamber



Spyke
12th April 2008, 09:39
I'm currently in the process of dechoking my ts185 expansion chamber, I did it the usual by burning it out. after i did this i realised that inside the chamber there was baffling, so I've cut it in half and theres baffling all through it.

Theres perforated tubing and a restrictor plate in it, in my ignorance i have started to take them out is this a good idea? because this could effect the distance of the sound wave travel. I thought that expansion chambers were supposed to be resonably smooth but it won't be with all that in there.

some help please
cheers

Motu
12th April 2008, 18:00
The TS185 doesn't have an expansion chamber,it just looks like one.

Spyke
13th April 2008, 13:28
Well that blows my theory out of the water then. I was thinking of doing a project next term of making a new chamber for it, I probably can't go to wrong if I get someone here in napier that has done afew ones before. there was a low down bolt on expansion chamber you could buy, i was thinking of trying to build one of them, the only problem i don't know how to do the formula's to design one.

the old exhuast has a plate about three quarters of the way down the pipe should i take this out?