O-tuning V5A for my elder son (hot french recipe inside)

[fastfrog]

Barrel and piston back from the workshop.
New timing with the 2,5 m packer under:
T:110°
E: 148°
I: 109-45° makes 154°
I need to rise the exhaust up to 160°. It's about 2,1mm to be removed.
BD:25°
I've got almost 4mm squish now. Guess it needs a good skimming job to get 0,85mm...

[fastfrog]

Squish at TDC:



Packer being ported:

[fastfrog]

Main casing done and ported:







But got a prob with the right casing. A welding bubble has passed through where the stator takes place. There is a chamfered flat at this place where the wall is very thin.

[fastfrog]

leak fixed with a putty of epoxy.

Exhaust port done. Only 160° but this small engine needs to keep enough guts at low revs... Keep in mind it's 130° on a std barrel....

[fastfrog]

barrel and head skimmed off:







Head bolted on with a real squish band. Not the case with the original head.



Engine rebuilding is about to begin.

[fastfrog]

Had to reshape (a bit) the head. Squish clearance between head and piston wasn't good with a negative angle at one step.



took my moviluty and did a little squish job:



almost done:

[fastfrog]

I've been quite busy on several projects at the same and left the 50S alone a few weeks. I'm back on it. My soon just succeeded to his 50cc driving licence.
During his training:



Good news and it's time to accelerate a bit quicker.

Fresh painting:







Wiring loom and cables/sleeves in place:



Hydraulic conversion starting:





Engine's back in the frame:













first kick start: Seems to work.....



My new acquisition: APE50 country cross. So fun to drive it....

[guygrrr]

I'm excited to find out how well it goes down the road!

And, am I looking at the glossiest black paint job ever?

[fastfrog]

I guess so..... Electrical wiring is almost finished First road try within a few days.

[jackson85]

That's about these glossiest thing Iv ever seen. Looks like chrome!