Honda Spree and Elite 50 Forums

How do you "chew up" a stock head?
I got the bike that way. The whole bike was way moded to the max. You would have to work hard to do that much damage. There are little pits in the inside of the head and on top of the piston like chunks of something kicked it in there for a little while. Come to ...

...I have never heard of calculating compression that way. Can anyone verify this method?...
I know you can compute the Compression Ratio (approximately) from the Compression but I'm not sure my formula is right. I really want someone to verify (or tell me the right way) too.
The liquid method you ...

...o-ringing and chamber mods, I was able to eliminate gaskets altogether. My piston easily clears the exhaust port and comes within a whisker of the cylinder rim at TDC...
I've heard of guys grinding their cylinders into works of art but I'm scared to try it. Besides my piston is above the ...

...in the dead soft condition. you can cut that stuff with shears...
I did use dead soft copper but, at 0.025" thick its hard to cut and doesn't grind well. I was afraid shears would bend it up and stretch it too much.

From your suggestion, I'm thinking I could use more layers of thinner stuff ...

...longevity is the key.
I hear you man.
This bike is going to a kid that will probably run it pretty hard and, of course, he doesn't have cash for another rebuild (hence the low cost kit and used parts in the first place).
It doesn't have to go that fast.
I only promised him that it would beat ...

I made two head gaskets out of 0.025" copper for a total of 0.050" and replaced the head gasket that came with the kit with them.
Now I get 180 psi which is 12.25 compresion ratio.
This is real close to what my formula predicts so I think I got the formula for calculating what compression results ...

...Get a more traditional aluminum head gasket...
OK, Thanks.
This is the kind of input I'm looking for.
But, I can't find a traditional head gasket for 72cc kit.
Any suggestions on where to look or how to make one?

The service manual says, "114 to 171" psi compression and the Polini kit specs ...

...tell me [you're] using race gas...
I want to run 94 octane so, tell me, what's the best way to lower my compression?
And what compression do I want?

Also, can anyone verify that:
Compression Ratio = Compression divided by 14.7 (at sea level)
or tell me what the formula should be?

Also I'm ...

Trying a budget build of a 94-01 SA50P with 72cc kit from Taiwan, a used Malossi head and a Typhoon pipe.
I used the thin paper base gasket and fairly thin aluminum head gasket that came with the kit (seems to be holding).
I'm getting 215 psi compression which seems high to me.
That's 14.6 to 1 ...

Do you want a 2 wire cable? I have one that I couldnt use for my application so if you want it $5 shipped
Please sell me the cable. I'll pay more than $5 and consider it a favor.
I noticed the lack of attachment to the oil pump and figured someone had removed it.
Ordered a new throttle cable and ...

I got a big bore kit(65cc) for my NB50 from VT that is made in Taiwan.
Its different than some of the other kits in that its the same height as the original cylinder while the rest are taller than original.
Also the cylinder is iron (like original).
Not sure about the performance 'cause not done ...

You guys are way awesome.
I thought I had killed this thread.
Horrible feeling, as a noob, thinking you killed a thread.
Especially the one you need the most.

I've gotten more good sh*t off this site in less time than ever.

-blank, I hope you make this your home.
I've seen your Aero writeup .
You ...

WHY IS THIS PAGE NO LOADING FOR ME!?!?!?!

Do you have some kind of firewall? Maybe IP is blocked.
Maybe subnet blocked in your router.
I've had pages where my home gateway got confused during DNS lookup.
Try digging in your router for the DNS IP address' that it gets from your ISP and plug those ...

All my plastics are way baked on my 86 Aero so, I going to "street fighter" it.
Basically strip off all the plastic and paint the frame black.
Of course, I'm going to make it pull wheelies and go 50 but, thats another thread.
I'm looking for some old school wavy fenders and bullet shaped headlights ...

Dac wrote:WHY IS THIS PAGE NO LOADING FOR ME!?!?!?!

Must have drilled thru your cable modem.