Proma GP Installation

Finished the installation of a Proma GP pipe onto my Murray moped. I learned several things along the way, overall the pipe installation went smoothly and didn't have any big problems. The only thing that was a pain was my neck because I pulled a muscle earlier the day of before the project began.

To begin with, taking off the stock pipe was no big problem, one thing that I've noticed was the header was leaking crap. Basically looked like black sludge, most likely caused by the lack of gasket. Once off I cleaned the surface by the exhaust port and then proceeded onto the installation.

The installation involved very little thought except for attaching the pipe in back of the pedals where the old one was attached. Before that I placed a new gasket between the threaded studs and then placed the new pipe on, wire is advised for mounting otherwise its hard to keep it in place while screwing on the exhaust near the port. Afterwards the hard part begins with attaching the back of the pipe onto the frame. I was able to do this by using a piece of copper plumbing pipe, a spacer, a bolt, and nut. Not that hard to fabricate and is easy to put on and replace if need be.

The only thing that sucks right now is that the center stand knocks on the underside of the pipe, I'll most likely get a side stand so that there is no interference for kicking it up during riding. Apart from that the only other problems that I've encountered were minor and only involved the 14mm Bing carb on the bike.

When taking the Bing off the bowl has to be put on a certain way, once everything is off, including the cable, I had to turn it counter clockwise. Make sure you don't loose the choke dingus when you unscrew the top part though. One thing that pissed me off was oxidation on the main jet/atomizer, one piece of advice is hit it with either electro contact cleaner or carb cleaner, otherwise your going to seriously mar the jet. One thing that I accidently did was take the spring off the upper part which was a big pain to put back due to the cable.

Now I made sure everything ran, the exhaust pipe works with no leaks and sounds awesome! The overall quality of the clear coat of the pipe is good, not as good as a chrome one but I like seeing mars from the stamping operation along with the colors and heat affected zones from the welding, and also the brazing looked cool.

The only thing left to do is to do plug chops, this might happen Tuesday depending on work. Probably won't ride a whole lot this week, including going to Founder's tomorrow, which sucks but I need the cash. I'll also probably order some new 70's range jets, I put a 68 jet in the carb but who knows how the plug chops will go so I might hold off...

Anyways Mongolian Beef and Sapporo went great with this project, hunger and wrenching don't go good together...