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In this video i machined a 38 mm mikuni carburetor with an eccentric setup to obtain the most area as possible, finishing with an "oval" shape. At the end there are some clips showing the engine running just after this modification

Another repair of a worn out motorcycle crankshaft bearing journal, this is a common issue, and also finding a used crank won't help cause the majority of the crank out there are also undersized and the new bearing will be loose from the start making the situation worse with the use. Hope you enjoy the repair, see you next time ;)

Little job i've done to be able to reuse an old water pump that has the thread damaged, worked really well, no need to find and purchase a replacement

In this video i bored this cylinder of a 125 primavera et3 vespa, the bore was the standard size, i bored up to the next size which is 55,4 mm. The engine run very good with very good compression. Thanks for watching If you enjoy this sort of stuff feel free to subscribe ;)

First step in the building of my 32 ton diy shop press. Using this method i've drilled a total of 28 holes. The setup worked really well, little bit tricky but very effective. Very hard to drill by hand especially to have the hole parallel and in square, and i don't like to have someone do the things for me, if it's possible, in some way i do it myself with what i have

The crank web in the video is part of another crank that i have repaired on the bearing journal (there is the video of the full process on the channel, It's linked at the end of this video) The taper contact was not very good on this one, so i decided to do some quick lapping using a fine lapping compound, then i checked the contact with some engineer's blue

Short video of the engine that's actually mounted on the bike. i reached some amazing results as you can hear in the video, that things is crazy fast compared to when it came out of the factory. The only part that's not original is the exhaust, all of the others components are originals (no aftermarket "miraculous" parts) just modified, ported and tuned all together. No money spent, just time ;)

Simple but effective method to extend/lenghten a drill bit. Using a already broken 4mm drill bit and a steel rod, welded with a tig welder on the lathe to ensure a good alignement and very little runout to facilitate the drilling operation. Better make one than have to buy a longer drill bit for maybe just one job

I repaired this 125cc dirtbike crankshaft making an undercut of 1mm, then i machined and heat threated a bushing that i left oversize. I then machined back to size the new journal, leaving on 0,01 more that the standard size, (22,01 instead of 22,00 providing a nice press fit). Making in this way i think that the crankshaft have a longer life, because there isn't free spinning like before. I th...

I've done this job so i can try differents combustions chambers that i've already machined and tried on others configurations, without the need to machine a recess in each head. Most of the time i do my test on cylinder that don't need this type of work, or a recess in the head, this is a cylinder that i had and i decided to try something new with it. Of course between the cylinder and the case...

Repair job for an agria 6000 clutch hub which had a deep scratch in the oil seal seat/journal, instead of replacing the clutch hub, I repaired it by turning a carbon steel bushing, 27 id 30 od, then hardened and hammered into place. The engine now runs very well, there is no more smoke, and no more air/oil enters the combustion chamber, causing the engine to run badly burning gear oil

Boring 2 stroke case to make room for the conrod to rotate, stroke increased from 54,5 to 56,3. Removed in total 0,3 mm per side

Machining 2 stroke combustion chamber from round stock, compression ratio squish turning head lathe

Turning brake disc on manual traditional lathe, brake rotor resurfacing

Machining racing 2 stroke head turning, compression ratio, squish band, tuning

Husqvarna WR 125 motard update after several changes on the diagram, porting, head, compr. ratio ecc

2 stroke head turning vespa 150 sprint veloce on old school lathe squish band compression ratio

Husqvarna wr 125 motard port map 2 stroke cylinder porting exhaust transfer time area angle area