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Post by pitobread on Jan 26, 2019 16:26:18 GMT -5
Here is part 2.
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Post by pitobread on Jan 26, 2019 14:21:39 GMT -5
Great video! Is there an easy way or trick to getting the head alignment pin holes placed in the cylinder and head, so that the head actually lines up correctly? Video part 2 shows exactly that... it should be up in an hour or so. |
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Post by pitobread on Jan 26, 2019 14:20:22 GMT -5
 I just have one request, can you take a picture of bottom dead center without any shim. This was the issue I had.  The piston was below the transfer/exhaust ports and if I raised the cyl, it just made it worse. Mine is the same, but that is an easy fix! some time with a porting tool and a diamond burr and you are all set! |
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Post by pitobread on Jan 26, 2019 11:43:26 GMT -5
Started this the other day, It is a engine without a home currently but I want to get some parts bolted to other parts in the shop. It is a Honda AF18 cases I bought off Yahoo Japan a while back, Current plans are stock crank, Peugeot Speedfight 2 Stage6 Racing Modular cylinder, Polini Evo Piaggio bearings, Moto Tassinari KX65 Reed block in a CT intake and half a Polini OTT pipe. I made a short video about the basic prep of figuring out what was needed to mount the cylinder. So the piston stroke of the Honda is 41.4, Piston is 39mm The stroke of the Peugeot is 39.1, Piston is 40mm This gives about an 74cc Displacment when you combine the Peugeot 48mm piston of the Stage6 Cylinder and Honda 41.4 Crank. So I needed to make up for the difference in stroke, by adding a .5mm base gasket I had the transfers around 130, boost at 133 and ex was low at 194 but the exhaust is easier to move up than trying to make the transfers move down.  This left about 1-1.5mm above deck that needs to go. After this I figured I needed to remove .080" from the dome to hit about a .07 Squish and allow the piston crown to travel up into the combustion chamber. After that I realized that I needed to somehow align the head to keep the piston centered in the dome. I whipped up some simple steel 7mm OD alignment dowels that go into the cylinder stud holes to align the dome. Any bigger than that and it may have some issues with leaky O-rings.   And here is where I am stopped, waiting for bearings to start assembly.. |
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Post by pitobread on Jan 22, 2019 13:08:44 GMT -5
Just to ad to the cylinder swap info, This is my Stage6 Race LC Peugeot cylinder on AF18 cases with .5mm taida base gasket. Not bad out of the box. The peugeot have a 39.1 mm stroke I believe VS the 41.4 of the honda and a slightly larger piston. The head protrudes .055" from the deck and the 2 piece head is easily machined to accommodate |
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Post by pitobread on Jan 22, 2019 2:59:34 GMT -5
 Rebuilt the forks, put the suspension back to stock, built a mild 70 shortcase and I think I fell in love with this thing again. It looks proper with a shortcase in there. |
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Post by pitobread on Jan 19, 2019 2:28:44 GMT -5
Mini Stroker.
Be warned, they use a 16mm pin on those CMR vs the standard 18mm pin.. Check my S6 build. I mod one of those to an 18mm pin so it uses the bigger bearing.
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Post by pitobread on Jan 19, 2019 2:13:53 GMT -5
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Post by pitobread on Jan 18, 2019 1:36:07 GMT -5
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Post by pitobread on Jan 13, 2019 22:47:33 GMT -5
Little driving clip in there, Either clutch is slipping or its popping into neutral under high RPM. But it has moved under it's own power!
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Post by pitobread on Jan 8, 2019 14:59:26 GMT -5
That front fender confuses me. Drift stitches so it looks like plastic but it is rusty.
Otherwise I approve.
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Post by pitobread on Jan 7, 2019 22:49:37 GMT -5
I hear ya, I just enjoy being the advocate for shenanigans.
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Post by pitobread on Jan 7, 2019 20:23:25 GMT -5
I got my hopes up but then I clicked it and was sad.
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Post by pitobread on Jan 7, 2019 17:33:56 GMT -5
When do you add the turbo?
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Post by pitobread on Jan 6, 2019 13:34:45 GMT -5
There used to be a variator that changed the bike so it "shifted" but it was gimmicky and other than allowing you to shift the variator it was useless
I can't remember the name and google is letting me down, but there is a youtube video out there someplace of this thing.
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