MOPED ARMY

Got a care package coming your way, shipping out tomorrow!

This is just so damn cool.

winning awards already! thanks mike! <3

btw, I never got out of mopeds, just slept a sec while in a shitty anti-moped town. :P

mike sent me the pedal chain tensioner, so hopefully i'll have some skid videos tomorrow! also got my gila to fit the cases, so maybe it'll be running soon?

i can probably get tall bike pictures later if i remember

brandon called it! I did some up and down the street push bike style brake tests and under hard braking, it'll skip a tooth once in a while. if I slam the brake super hard, it'll do it almost every time.

I knew it was a possibility, I was just being super hopeful that it wouldn't. I used a pre-existing hole in the frame for the spring mount and was just hoping it would conveniently work out.

not a big deal, I can make a bracket and get better chain wrap and/or spring tension.

otherwise tho IT WORKS REALLY WELL!

this was my original idea, but i didn't like the idea of constant pull on the brake arm that the end of the chain being sprung to it would cause, if that makes any sense.

current plan is to just build a little bracket that puts the spring lower and further back some, and possibly a bit stiffer spring, or some more tension on this spring.

i'm back in oregon for a week or so to gather some of my stuff/see family, but i'll get back on this once i'm back in fe

nah, i gotcha. kinda like this -

at least i think i gotcha. the spring pulling on the chain going back to the arm is gonna be pulling a bit on the arm and i don't wanna deal with all that, moving the spring anchor spot lower should do it.

it's all experiments and trying things out, but i feel like a bracket either bolted or welded to the frame will geter done.

Y not a pushrod?

nah, the end of the chain needs to be secured to something via a spring to keep the end from going too slack when the brake is in use.

a bracket lowering the end of the chain should do nicely.

hi, remember this dumb thing?

im back in the southwest and have started cracking on purple pain again. goatheads rally is coming up and I gotta do my prospect ride on my own bike before then, so it's go time

basically finalized the back pedal brake thing and it doesn't skip teeth any more. also discovered a little quirk that never occurred to me, though it properly should have. you can't really toll this bike backwards!

rolling a puch or any moped or bicycle with a freewheel backwards causes the cranks to back pedal due to how the freewheel functions, which applies the brake on this bike. not a big deal, i'll get used to it. totally worth it for the sick skids!

I'm waiting on a treats order, but once parts show up I can build the motor and start wrapping things up.

I need to figure out what pipe to use. In all my years, I've never gila'd an e50, so idk what it's gonna want. I'm open to suggestions!

pics are what really matters

I was considering an estoril, they pretty cheap and I had one on my 80cc sachs forever ago and loved it. This kit is kinda beat so I'm not doing any porting or anything to start with.

I also need to figure out where to start my jetting. I was told by someone way smarter than me that two 14 bings will equal around ~20mm total, but like.. they're bings haha. No idea where to start at.

I mocked the engine up and it's gonna be a pretty silly looking thing when it's done

(edited)

Idk, most polini bing bikes I’ve built are in the 80s-90s? I’ve never had a gila puch before, but I’m guessing a gila is less thirsty than a polini. I bet you’re safe to start in that range. Get out your micro drills!! (edited)

This bike is awesome. I wonder if you have to tune them to open at the same or have them stagger open like one is the idle circuit and other is main.... idk dual carbs have always fascinated me. Seems like a lot of variables. Either way I think she will be thirsty. I would probably slap a Estoril or treats pipe on it. Unless you can get a 8P for cheep. Hell even a circuit pipe would be rad if you wanted to keep the RPMs down but take off like a rocket.

Can’t wait to see this in person a second time! (Hopefully ready time skid!!!)

Might try and take a trip down before the rally!

I'd say open together and tune them alike. Its the same as one with better intake velocity? Probably offset by the added resistance of two barrels and intakes... We all know its just because it looks cool and nothing else. Tuning should be straightforward tho. I would start by deciding what range you would normally jet a gila at, find the radius of the hole in the jet you would start with if you were to run one carb and then find the area. Divide that in half and work backwards from there to find the equivalent area of two holes. This isn't really spot on because bing and dellorto jets are indexed by the amount of fuel they flow and not incremental measurements.

Use these charts to find your hole size. (I giggled too)