Figured this build was worth a post. I'm going to be building another moped with my 6th grade students this year and wanted to do something weird. Well, I have some old advertisements for Trike mopeds and my students and I thought, WHAT COULD BE WEIRDER! So a Trike became the plan.
Recently I purchased a Pryor Trike rear end from DMW which necessitated an engine with pedals integrated. Considering I thoroughly enjoy working on Sachs, have lots of parts and tools for them as well as Sachs being the red-headed step child of Mopeds, the 505 engine was chosen.
This build will likely have slow progress until after New Years. We are still collecting parts.
So far what we have is two 505/2 manual shift engines to smoosh into 1 functioning motor. I'm getting a built crank from a friend as well as a bunch of other Sachs parts he doesn't need anymore.
I have an old Airsal kit that I blew up once which will be going onto the 505/2 with a new piston. We will be attempting to shove a 7-piece clutch set into the engine with an extra diaphragm spring to help with shifting into second. Currently I have a 14mm bing hanging around so we will probably throw that on to begin with.
Additionally due to the recent post by Graham about a weird Sachs cylinder I have discovered the existence of the bizarre Sachs stock Boner pipe. Toledo said he may have one floating around so I'm hoping to get that on the engine as well and use a clamp on expansion chamber as well as a butterfly to control the boner(butterflies get me going).
The plan for the trike is to build a flatbed with removeable bedsides to maximize storage space. The weight is my main concern and I refuse to build the entire thing out of Plywood so we will have to be creative to save on weight. The weight is the main reason for the kit and clutch upgrade. I personally am very light 145 soaking wet, but with the bed loaded up...yikes.
Hoping to use the rear "coaster" brake setup for the trike differential brake. Not sure if I will need a disc in the front or if the drum will suffice.
The shifting is going to be done Jockey Shift style with a rod and cable. Thankfully I'm a blacksmith so I should be able to fab the linkage fairly easily. I plan on putting a brake lever on the top of the rod to act as the clutch lever. No clue how that's gonna turn out.
Currently still trying to find/decide on a frame. I have a possible line on a columbia commuter but I'm not 100% sure that will happen.
I'll try to post some photos as things come together.
Looking for any other weird suggestions for this trike; the more bizarre Sachs crap I can put on it the better. Stay tuned, hoping this will be interesting. (edited)