tdpomodoro

If you're going to take your exhaust on and off fairly regularly consider replacing with hex drive bolts. When i bought my DT175A the exhaust bolts were sheared off, had to drill and tap larger holes at 8mm There isn't a great deal of spanner clearance now so i've replaced them with these: Cost about $5 AUD, i'll nip them up hard with a hex drive in a socket

Thanks for the wishes of luck. I'm not doing anything too crazy, not looking to change the timing or duration, just making a chamber up - anything has got to be better than I currently have cause she's holding sweet little pressure. I tried plugging her up with metal epoxy but it flaked right off. I've got a 1.5" mandrel bend from a exhaust shop that's suitable to fix the current header though the current system seems very restrictive so i'll try my hand at some scratch fab.

Hi guys, The time has come to do something about my exhaust. The header leaks like a sieve - rusted through! Wondering if any one knew the exhaust duration on a DT175A? Does anyone have a service manual for this model - perhaps it's in there? I've been reading Graham Bell's manual on two-stroke tuning and its proving to me an excellent resource, not just for exhausts but all kinds of topics. Going to try my hand at making my own tuned exhaust as per his suggestions. Going to be an underswept design like a maico:

Hi all, New to the board - thought i'd drop you all a line from Australia. I'm restoring a DT175A, slowly getting there! Look forward to meeting with you, Cheers, tdpomodoro