engine squish

MySpree · Post by **MySpree** » Thu Jul 21, 2005 5:40 pm

has enyone put a engine squish on there moped? it works on my viza venom but im not sure if i wanna take the risk on my moped... whadda u guyz think?

vette76 · Post by **vette76** » Thu Jul 21, 2005 5:58 pm

what the * is an engine squish?

MySpree · Post by **MySpree** » Thu Jul 21, 2005 8:27 pm

an engine squish is when u replace the cylinder gasket with a thinner one like a copper gasket or a silicone gasket, by doing so it makes the piston get closer to the spark plug and there for a bit more compresstion. atleast that what i have heard. and it worked real well on my venom... the comprestion got noticbly better.

vette76 · Post by **vette76** » Thu Jul 21, 2005 8:35 pm

oh, noiseguy did something similar. he machined the head. he machined more then u would get out of a thinner gasket and there was no difference.

MySpree · Post by **MySpree** » Thu Jul 21, 2005 8:41 pm

worked on my venom, it wont hurt to do it to the spree.

darat · Post by **darat** » Thu Jul 21, 2005 10:26 pm

hey what part of troy do u live in? i would try it but i have a elite but u can still try it. and let us know how it does

MySpree · Post by **MySpree** » Thu Jul 21, 2005 11:34 pm

i live it 15 and livernoise, you can do it to all scooters, and im doing it tommaro morning. if you live by me and want it done i can hlp u put there, and or if enyone needs a carb i have 4 finished working tested clan carbs sitting on my shelf

Post by **noiseguy** » Fri Jul 22, 2005 1:03 pm

Hey, do you have an Elite manual yet?

I removed about .017" from the head safely. It bumped compression up to around 130 PSI. It started easier and ran a little stronger, but no faster. The stock head gasket is .020, so if you replace it with something smaller you can get a similar bump "for free."

Make sure your head is level b/f you try this. If it's warped at all you'll just get blowby.

Also a good idea to check your running clearances b/f you start it. Use electrical solder taped to the inside of the head in a cross pattern, bolt the head up and torque it, and turn the piston around by hand. Use a micrometer to check the solder clearance. Mine's running just at .020" to the head, which I thought was probably adequate (and wouldn't want to run much closer.)

I think .020 is the limit, I believe that Honda designed the clearance so that the scoot could be run w/o a head gasket without blowing up, in case someone forgot to install it.

Have fun.

MySpree · Post by **MySpree** » Fri Jul 22, 2005 11:25 pm

yea i do