alright so i did a compression and leakdown test just now. the compression test showed that i have about 110 psi of compression and the leakdown test showed that i am at about 54% leakage. so for an 85 lt230ge what do those results yield? do i need to tear down the motor? or is my starting problem probably still in the carb?

 

the comp. is low.
the leak down is very bad. Where is it leaking Ex. Intake or rings

 

well im not sure where it was leaking at but i just tore the whole top end down and the piston looks like its in bad shape and the valves dont look to healthy either so tomorrow i am ordering new valves and a piston/ring/gasket set for the whole top end. im just gonna send the cylinder to work with my dad and have him rebore it for me and order all the parts i need to rebuild online. if i do it right i can get everything i need for a top end rebuild for about 120. so hopefully after i get it all back together it should run like a champ. also you think it would be wise to change the cam chain while im at it? i doubt this thing has been rebuilt in its 25 year lifetime so idk if i should replace the cam chain too? heres some pics i took erlier before i had everything completely apart.

 

I would replace the chain to but thats just me. how are the chain guides?? how are the valve springs???
new bore
new piston
new rings
new gaskets
new valves
new valve job
new valve seals
new chain

you should have a good running bike

Keep us updated!!!!!

 

valves springs were pretty stiff and the guides looked ok. i accidentally tore an oil seal when pulliing the valves out so i gotta replace that but no problem there. i just gotta find a cheap flywheel puller so i can get to the chain in the bottom end. the chain guide looked pretty good but a little scuffed up. same for the chain tension er guide. i also have a few studs im going to replace because they are so rusted and weak form 25 years of wear that i snapped one and haven't gotten it out of the top end yet lo..

 

well i ran into a problem today. i took the piston off and the flywheel to try and prep everything for reassembly next week. when i took the piston off this is what i found



it appears that the damn thing broke off somehow and i found a few pieces floating around the crank and was able to pick em out. my question is do i need to split the case now to remove all foreign debris that is most likely floating around in there?

also when i pulled the flywheel off my timing chain was bunched up at the bottom of the case and i think it jammed against some guide looking thing thats aprt of the case and it shaved it off a little bit



is it gonna be ok if i file it down and make it smooth or did i **** up my case real bad now?

 

that spot were the chain rubbed looks like where the chain guide go's but i would not worry about that. I would be more conserned what happend to the piston what it hit and why.

 

well i split the crankcase and found the chunkcs of piston in the bottom so thats all clean, i have a feeling the piston was so weak since it was the origional piston from when the bike came off the assembly line in 85 and i just helped it break the rest of the way lol, anyways after i split the case i tried getting the tranny into neutral since it wasnt spinning freely, is there anyway to tell where is neutral on the tranny cam? cause i took the tranny cam and forks out of the case and now im not sure where neutral is on the cam lol.

 

been looking for the Manual, but can't find it sorry

 

well i bought a 5 dollar manual online in pdf format but i dont think its the original manual. its a clymer manual i think. and it doesnt really tell me exactly what i need lol, it helps some but not as much as i was hoping for.