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Post by AtariGuy on Mar 19, 2017 8:03:32 GMT -5
Now that i'm thinking on it i did sit at our local home improvement place trying to find a fitting that measured out to 1" outside diameter with a tape measure i grabbed from another aisle. Lol! I believe it ended up measuring about 1 1/8" which (besides all the raised lettering and such) is why i sanded it clean down and removed a bit to make it fit. Do what ya gotta do right?  |
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Post by pinkflames420 on Mar 19, 2017 12:36:08 GMT -5
Iv been using store bought gasket material, but as others have suggested, other materials can be used. Plus its a fun way to hone your arts and crafts skills Crafty skills I have 😜 definitely keep myself busy with a few hobbies Lol. The store bought are probably easier to cut. As I talked with Niz before about the cricut machine, I think it would be awesome if he dug it out and became the 49cc gasket guy, "gaskets! Gaskets! Get em while there hot". AtariGuy Thank you, it only took me 30mins which involved me and my daughter on the floor of the hardware store, playing with pvc lol Sorry still kinda confusedw about the size measurements like 1/2" and so on. My tee is suppose to be a 1/2" but I'm not measuring a half inch anywhere. I actually had thought I sorted all the parts out into a cart online and then when I arrived to the store, nothing seemed to match up at all. The threaded end which I had planned to use for the intake is 1" on the outer diameter which is 25mm, 2mm larger than the inner diameter of the intake. Are you suggesting I find a slip fitting on either sides with an outer diameter of 1"? These measurements are killing me. The fitting that I attached to my gauge says 1/2"x1/4". NOWHERE am I getting those measurements.  @atariguy , that's exactly what I had to do. Tho I always bring my little pink tape measure  We'll see what I can find! This is a real puzzle game lol. You change one thing and the whole plan gets thrown off. I'll get it to work  |
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Post by spaz12 on Mar 19, 2017 15:15:15 GMT -5
I took my intake manifold into the store with me so that I would know the piece would fit. I HATE having to make several trips to the store.
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Post by pinkflames420 on Mar 19, 2017 15:24:53 GMT -5
I took my intake manifold into the store with me so that I would know the piece would fit. I HATE having to make several trips to the store. Yeah I realized that afterwards lol. I'm gonna bring it with me tmr. I always forget everything's closed on Sundays. I was wondering, without getting to complicated, would sanding my cylinder on the flat side which sits against the head, be alright to do to lower my squish just a tad? Or possibly sanding the head itself? |
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Post by spaz12 on Mar 19, 2017 15:29:05 GMT -5
I took my intake manifold into the store with me so that I would know the piece would fit. I HATE having to make several trips to the store. Yeah I realized that afterwards lol. I'm gonna bring it with me tmr. I always forget everything's closed on Sundays. I was wondering, without getting to complicated, would sanding my cylinder on the flat side which sits against the head, be alright to do to lower my squish just a tad? Or possibly sanding the head itself? I've not done it myself, but plenty of guys like 190, Brent and Niz do it often and there are several threads on the subject. |
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Post by spaz12 on Mar 19, 2017 15:45:49 GMT -5
I tried finding a thread on here about doing the cylinder head, but didn't have much luck.
Found this video
I haven't seen anyone do it the way he did with the spark plug and drill, but it seems good enough, although if you want to take more material off you might want to use sandpaper on top of a sheet of glass so that it's quicker.
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Post by niz76 on Mar 19, 2017 16:28:43 GMT -5
I thought for sure I had some pics of my 'ghetto' setup in my AIR build thread where I shaved my head down, but I guess not. I can't seem to find it anyway!
I did use a spark plug socket chucked up into a drill method for a bit but I found it very difficult to keep things level while the head was spinning. It also kept catching and tearing my sandpaper that I had taped down to a glass fish tank haha. In the end I finished it up by hand moving the head across the sandpaper in back and forth motion- much easier to keeps things level. I would occasionally mark the head with a red marker to ensure I was removing material uniformly.
When I shaved the stock Vespa P200 head I used a file with the head clamped into a vice to remove material more quickly but I ended up shaving it lopsided and that was very difficult to get it straightened back out again with the sandpaper taped to glass method!
It's a painfully slow process manually shaving heads down like this, but hey what won't we do for better running engine right?
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Post by 90GTVert on Mar 19, 2017 17:06:23 GMT -5
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Post by pinkflames420 on Mar 19, 2017 20:28:09 GMT -5
Thanks for confirming guys, I new some of you did this , but I wasn't sure if I would have to change any of the ports or anything to work with the higher compression, idk. I've read about port timing but I don't think I'm ready too dive into that subject just yet... And I'm fairly familiar with the sanding  I sharpen lots of our knives and tools to almost scary sharp so I have a few pieces of granite that work aswell as the glass method. I'm always impressed by the methods you guys come up with But I think quicker and an even cyl head with the hand sanding will be perfect!  220 grit then maybe finish up with 400. I'm hoping to remove about .5-.6mm from the head aswell. Or close too anyways. I'm gonna slap on my double cereal box gasket as I believe one layer is about the same thickness as the motor force gasket I have.(shoe box I had seemed too thick for the cutting) and chuck the copper gasket. Hoping that'll get me close too 1.1mm squish clearance give or take with my gasket spray (always forget things are closed on Sundays  , gonna get this thing back together tom) @90gtvert thanks for the link, I couldn't really see much when I tried the search engine.👍 |
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Post by AtariGuy on Mar 21, 2017 20:45:35 GMT -5
Any new stuff goin on here?
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Post by pinkflames420 on Mar 21, 2017 21:47:12 GMT -5
I know , sorry guys , things are moving a little slow this week. Seems I've been doing more working on the hubbys car then my scooter 😂
I did manage to get the squish down to 1.2-1.3 ,, including the 2 base gaskets , no head gasket and shaving down a bit of the head. Don't want to go too further yet as I'm not sure of my cranking compression. Hopefully this will be good enough. I don't feel confident enough YET to change the timing of the ports themselves. Besides by the time I get myself an angled dremel, I MAY be ready...
Didn't find a piece for my leak tester so I'm gonna have to use even more silicone and that should hold up.
Just thinking how annoying it'll be to get a new pipe and do the samething all over again with the bracket...😧
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Post by AtariGuy on Mar 21, 2017 23:51:05 GMT -5
There was a feller who sells a porting tool attachment for a dremel, its a flex shaft ending in a 90º head that works great for getting inside those cylinders... look up 2 stroke porting - i think its a channel on youtube and he has that attachment for sale
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Post by pinkflames420 on Mar 22, 2017 12:42:11 GMT -5
Thanks Atari! I like the idea of being able to turn it back to a regular dremel. I FEEL like altering the ports is something I'm definitely gonna wanna do, have to read more on the topic tho.
After Niz mentioned that my durations were fairly mild, I AM gonna wanna pull more top end from this kit. We'll see the new durations today....
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Post by AtariGuy on Mar 22, 2017 13:12:05 GMT -5
Nab up one of those 40 dollar kits from pfs, cheap 70 cylinder that you can muck up lol
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Post by pinkflames420 on Mar 22, 2017 23:00:29 GMT -5
Nab up one of those 40 dollar kits from pfs, cheap 70 cylinder that you can muck up lol Well that doesn't sound like a bad idea at all! I didn't even think they had 40 dollar kits lol. And i I find it strange that I'm getting the same readings for my durations :/ 162 exhaust and 133 transfer (sorry I was reading the wrong set of numbers when I posted my previous durations as 162 and 103) The addition of the head gasket SHOULD be able to give me a couple more degrees for my durations, no? Gonna have to check this one out again. Other than that, I got the silicone on my leakdown tester curing and I'll be able to do the test tmr |
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I sharpen lots of our knives and tools to almost scary sharp so I have a few pieces of granite that work aswell as the glass method.
220 grit then maybe finish up with 400. 
, gonna get this thing back together tom)