Tao Tao 50 scooty puff jr

[Eye of the Tiger]

Probably got a knot stuck in the valves

I already disassembled the top end and checked. No evidence of knots.

[r0tor]

I already disassembled the top end and checked. No evidence of knots.

Well of course not... They can't move by themselves

[Eye of the Tiger]

Ported and polished the fukkin head, mang.
New valves and 47mm piston + cylinder coming today.

[FoMoJo]

Ported and polished the fukkin head, mang.
New valves and 47mm piston + cylinder coming today.

How about the valve (sleeves?)?

[Eye of the Tiger]

How about the valve (sleeves?)?

The valve ... seals? New ones come with the valve kit.

[FoMoJo]

The valve ... seals? New ones come with the valve kit.

I'm thinking of the holes that the valve stems have to slide up and down in.  If the valves were sticking open were the stems not stuck in the sleeves?

[Eye of the Tiger]

I'm thinking of the holes that the valve stems have to slide up and down in.  If the valves were sticking open were the stems not stuck in the sleeves?

Oh, the valve guides. They look fine.
The intake was sticking open because it had zero lash. The exhaust valve was burned. It's amazing it ran at all for the 400 kilometers that I put on it.

[Soup DeVille]

Oh, the valve guides. They look fine.
The intake was sticking open because it had zero lash. The exhaust valve was burned. It's amazing it ran at all for the 400 kilometers that I put on it.

You put 400 kilometers on that in like a week?

[Eye of the Tiger]

You put 400 kilometers on that in like a week?

Two weeks, and work is almost 20 miles each way. Plus grocery shopping, and puttin around.


Heck, it might read in miles. I'm not even sure.

[Eye of the Tiger]

Oh yeah, scoot thread. Will be 72cc tomorrow.

[Eye of the Tiger]

New piston has such girth

[FoMoJo]

So you just have to disconnect the connecting rod from the crank and that pops out as a unit?

[Eye of the Tiger]

So you just have to disconnect the connecting rod from the crank and that pops out as a unit?

Slide the cylinder off, and the piston stays attached to the rod and crank. Then the wrist pin slides out and the piston comes off.

[FoMoJo]

The combustion chamber stays the same size?  Won't that increase compression?

[Laconian]

Oh yeah, scoot thread. Will be 72cc tomorrow.

"OK Google, translate 22cc into miles per hour."

[Eye of the Tiger]

The combustion chamber stays the same size?  Won't that increase compression?

Not exactly. The old piston is a flat top, while the new piston is dished.

[Eye of the Tiger]

"OK Google, translate 22cc into miles per hour."

Should be able to hit 40 knots on flat ground.

[Payman]

Not exactly. The old piston is a flat top, while the new piston is dished.

Practically a Hemi! 

[MX793]

Practically a Hemi! 

Reverse hemi.

[FoMoJo]

Not exactly. The old piston is a flat top, while the new piston is dished.

Yes, I see.  Pretty hard to tell on the old piston that it's flat.

[Payman]

Reverse hemi.

Shh. The enthralled onlookers needn't know that.

[Eye of the Tiger]

Shh. The enthralled onlookers needn't know that.

Actually, the cylinder head has a kind of domed shape, too

[FoMoJo]

Actually, the cylinder head has a kind of domed shape, too

A double dome.  That's kinda like an ellipse. 

[Payman]

Actually, the cylinder head has a kind of domed shape, too

So, kind of a lemon shape then.

[Eye of the Tiger]

So, kind of a lemon shape then.

Well, the lemon is getting bigger

[MX793]

Should be able to hit 40 knots on flat ground.

How fast can it go in sea state 3?

[Eye of the Tiger]

How fast can it go in sea state 3?

Roughly 9.8 m/s/s

[MX793]

Roughly 9.8 m/s/s

Can you convert that to rundlets?

[Eye of the Tiger]

Can you convert that to rundlets?

I can, but it would take most of the day.

[Payman]

Roughly 9.8 m/s/s

African or European?