ranger

the foam in my around my '71 CT1's air cleaner is totally disintegrated, and the part ( # 248-14451-00-00 ) is no longer available...can't even find a NOS one on eBay. K&N's site offers some disc-shaped "clamp-on" replacement, which sells for $45, and i guess involves removing the stock air cleaner box. wondering what the best solution is? is there some way to replace the foam that's on the old air filter frame? what would you do?

crankshaft seals, eh? are those the "oil seals" (parts number 14 and 17 on this shematic) : http://www.bikebandit.com/assets/schematic...a/YA4256_02.gif ? can they be repaired without removing the motor from the bike? anybody know if there's a test i should do first, and/or if there's a "how to" thread anywhere on the forum? (i've searched, but didn't have much luck).

a good friend's elderly father gave me his old '71 yamaha ct1 175 enduro a few months ago, as it had been collecting dust since 1976! i cleaned the carb and put a put in a keyster kit, sealed the tank, replaced all the corroded gaskets, added new bel-ray oil in the injector, and she fired up today! when the smoke cleared, she seemed to be running darned good...though only with the idle/air screw screwed all the way in. i warmed her up, drove around the block a few times, and was having a quite a blast...then suddenly...SMOKE...tons of it...billowing gray out of the tail of the pipe and the pipe/engine connection. she died, and though i was able to restart her, she smoked like crazy and runs like crap. the plug was pretty fouled...but a new plug didn't make a difference. ps: i hadn't changed the transmission gear oil yet..i was waiting til i got her warmed up. ps2: i didn't test the oil injector first. ps3: my girlfriend claims to have heard a "squeal" come from the bike before it started smokin'. what happened? now what?