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Category: My Mopeds

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Vespa Bravo 1986

I thought i didn’t need more mopeds for now, but then a old friend messaged me. He had this Vespa Bravo that he couldn’t get done. Everything was disassembled, engine and everything. The price was ok and included delivery, so i felt it was my duty to save this (once) fine Moped.

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My first plan was to assemble everything as is, but the paintjob is just terrible . Everything is sprayed over, it needs a new paintjob.

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The engine got a quick cleanup, new bearings and seals. The crankshaft was a bit abused, i’m giving it a chance. I’m running a original cylinder, the inlet timing and restriction are modified a bit. Just enough to pull a grown man, no racing engine… yet!

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More information is found in the image descriptions, i will update the galleries with additional pictures when i get more work done.

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Puch Maxi E50 clutch tuning

To get better acceleration on my Puch Maxi, I adjusted my clutch to engage later at a higher engine speed. There isn’t much bottom end in the Airsal kit, with a heavy gear ratio it needs to build up some RPM before take-off.

E50 Maxi Clutch

I started with some stiffer springs, with as much preload as possible. Then i took about 12 gram weight of every clutch shoe. I ended up taking it down to 73 gram before i was happy with the result. I wouldn’t mind making them even lighter. Remeber to get an even weight and spring adjustment on all shoes.

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Puch Maxi 2016 Update

I haven’t used my Puch Maxi in a long time, the aftermarket wire rims and cheap tires had a bit of vibration and the engine lacked power. I bought some Grimeca cast wheels and nice Schwalbe tires. For the tuning i got a new engine from my friend and club member Esben, don’t want to race the original number match engine.

Puch Maxi

I rebuild the spare engine with new bearings, seals and a stuffed DMP crankshaft. The topend is a 45 mm Airsal 4 port cylinder with a DMP head, the head isn’t designed correctly, i will need to make some adjusting. I started with a 15 mm Bing replica, but liked the 12 mm original square Bing more. The exhaust is a Jamarcol straight pipe, doesn’t make much noise and has pretty good performance. I need to adjust the clutch with lighter shoes and stiffer springs, there is not much bottom end in this Airsal kit.

More pictures and comments in the gallery below:

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Kreidler RS 5 speed – engine

I bought the cheapest 5 speed engine i could find, it’s in a rough state but should work after a restauration. It’s had a hard life since 1967, maybe as a motocross engine?

RS Engine

I will rebuild everything, a bit of aluminium welding, thread repairs, flattening the mating surfaces, new bearings, seals, crankshaft etc.

The setup will be a 6,25 HP replica, 40 mm cylinder, 20 mm Bing, 32 mm cigar exhaust.

Lets see the progress so far, remember to look for picture comments and check back for more updates in the future.

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Kreidler RS 5 speed – frame

Say hi to my latest restoration project. I got a 3 speed Kreidler RMC from my brother, when i found a 5 speed engine i decided to convert and register it as a motorcycle. So it will become a RS model with a 6,25 HP setup. This should be good for 85 km/h, and the police can’t do anything about me riding more than 30 km/h 😉

I will try to reuse as many parts as possible, and keep a bit of patina. I like to use my bikes and not to worry about scratches. So i’m spending many hours with cleaning, bending and buffing.

I’m also swapping the 6V points ignition to a Kokusan 12V CDI model, more on that later.

Lets see the progress so far, remember to look for picture comments and check back for more updates in the future.

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Fole Moped Dragrace 2015

We attended a fun moped dragrace at a large vintage moped meeting. This was our budget racers first test against other mopeds. It went great, if our driver hadn’t missed a gearshift in the final race, we would have taken the golden cylinderhead home that day.

Here is some onboard footage from our budget Monza dragracer: