JUSTWANNARACE

Look at your plugs they will tell you everything you need to know. Going from 32:1 to 40:1 is going to make it run a richer AFR

364cc

Looks like it may have been hydro locked at some point.. definitely looks bent in the pic.. I check it out a little more before running it..jmo

Are you looking at the frame or the cases? The FRAME vin is on the lower frame rail on the left side underneath the stator.

Most likely needs a new head gasket then. I would assume its seeping from the head studs

Stock head or billet head? If it a billet head pull it off and check the orings. When reinstalling use copper washers and acorn nuts, put a little 1211, 1184 or yamabond in the acorn nut before you put them on.

30 years ago someone thought they were needed. They are not. Right in the trash is where they go. They ARE needed if you want to "shock the clutch"... but.. that's just a "hairflip"...

Yea so they make their own stinger tubes and silencers for T5 pipes is what I get out of it! And honestly it looks like Toomey silencers also. Not sure on the stingers but those are probably toomey also.

AIRBOX VENTS FOR THE STOCK AIRBOX, A HIGH EFFICIENCY 2-STAGE UNI- FILTER FOR THE STOCK BOX, PERFECT JETTING KIT, POLISHED CHROME T5 PIPE BODIES, SILENCERS, STI copy and pasted from the verbiage on their description on the web site!

Nothing.. that's what I usually use!!

https://www.motionpro.com/product/08-0472

You can. LA Sleeve will have parts. ESR, NIX and Pro X are all the same LA Sleeve cyl

They take a ton of port work to run well but the do run decent once worked over. Are they going to out perform your serval, no probably not. But not a bad cyl by no means, better than stock for sure.

Can you get a pic?

If it is rectangular than it is probably an LA Sleeve cyl they used 250r reeds also