125cc Sportsbikes Forum banner
1 - 18 of 18 Posts

·
Registered
Joined
·
18 Posts
Discussion Starter · #1 ·
jus wanted 2 know. i recently bought a 1988 tzr 125 off da 'bay and the guy says it has 2 head gaskets coz the head was skimmed too much? jus wanna know if this is a common thing and is there a high risk of water getin in there or if compression would b normal?tankz
 

·
Registered
Joined
·
2,434 Posts
yeah, thats fine mate, this is a recomended technique.nothing to worry about
 

·
Registered
Joined
·
2,434 Posts
generally one of the things you can do to tune a 2 stroke is to raise the compression, by milling a fraction off the head,,but obviously if you take too much off, the piston will hit the head, resulting in catastrophic engine failure,so a cheap easy fix is an extra gasket.but this may raise it up to more than standard,so if you can get hold of a standard head, do so and get rid of the extra gasket.
 

·
Registered
Joined
·
18 Posts
Discussion Starter · #5 ·
generally one of the things you can do to tune a 2 stroke is to raise the compression, by milling a fraction off the head,,but obviously if you take too much off, the piston will hit the head, resulting in catastrophic engine failure,so a cheap easy fix is an extra gasket.but this may raise it up to more than standard,so if you can get hold of a standard head, do so and get rid of the extra gasket.
cool will look to dat in da future.
 

·
Registered
Joined
·
18 Posts
Discussion Starter · #7 ·
yeh coz wen i started d bike first, it sounded abit low on d compression(VERY QUIET) BY the way, the bike had a recent recon; new pistons+rings rebore, recon'd crank and new main bearings. or is the standard tzr usually quiet at low revs?
 

·
Registered
Joined
·
4,248 Posts
Quiet? If you think a TZR is quiet, try listening to my 4t CBR!!!
 

·
Registered
Joined
·
4,248 Posts
Mine wasn't too loud with the stock can on it, I'll say that...

Until the pipe started blowing anyway
 

·
Premium Member
Joined
·
3,474 Posts
ye my dad bought a minter 1980 E model . took it 4 a spin woooo that powerband. has got allspeeds chambers on it. finish off the bike. looks much better wit them on it.
yes, i would have the E. Discks all round, electric ign, and you get the coffin tank that graced all the later models.

is he a member of http://www.aircooled-rd.com/ , some top blokes on there.

enjoy your TZR,
Greg
 

·
Registered
Joined
·
18 Posts
Discussion Starter · #14 ·
yes, i would have the E. Discks all round, electric ign, and you get the coffin tank that graced all the later models.

is he a member of http://www.aircooled-rd.com/ , some top blokes on there.

enjoy your TZR,
Greg
actually he isnt really a computer type of person(no offence).but yeh those rd's are class it has the red n' white decals. im irish so jus ask if u guys dont know wot im sayin. phrases and the likes
 

·
Registered
Joined
·
2,434 Posts
you want to look for a book on 2 stroke tuning by A.Graham Bell.it is a really in depth book,that gives you tips on how you can make the engine go better with out specifically tuning it.it has all the numbers in, and because the tzr engine is so widely used, it does give recomendations based on the tzr sometimes.

it is an excellent read, but i had to read it 3-4 times, before any of it started sinking in.it even gives you the equasions you need to design your own exhaust!
 

·
Premium Member
Joined
·
3,474 Posts
yes, my mate talks bout that quite often, two stroke tuning is like freakin rocket science though, it takes a while to grasp the general idea!

Ive never read it, i should really. As for making your own exhaust, if you wanna get the best of your bike send it to Taffs in Newport wales and get an exhaust custom built for your bike, awesome.
 
1 - 18 of 18 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top