1978/1979 "yz 175" questions

1978/1979 "yz 175" questions! a one of a kind bike!

Hi, I joined this forum about this time last year. I recently aqquired a new bike, it's quite interesting.

it is a 1979 yz 100 monoshock frame with a 1978 it 175 engine. this is a former ice racing bike, and because of it's power to weight ratio, it flies!

I got it for $200

the bike has a brand new top end, bored .050 over, with new piston and rings, because they ran the mix too lean and burned a hole in the top of the piston. it has N.O.S reeds, too.
never to be ridden or even started again...... under his ownership.

it got put in the corner of the garage, everything in a rubbermaid tub, waiting to be reasembled. the guy got a kawasaki ninja project bike, and needed to make room.


I made $193 on copper, so I started looking for a fixer upper on craigslist. sure enough, this great deal was on there.
the bike was only missing tranny oil, some fasteners, a chain, and an exaust pipe.

here's some pics....

http://i343.photobucket.com/albums/o442/schman-man/HPIM1853.jpg

http://i343.photobucket.com/albums/o442/schman-man/HPIM1852.jpg

http://i343.photobucket.com/albums/o442/schman-man/HPIM1851.jpg


I'm 16, this is my second project bike, the first being a free 1976 ke 175.

so, now, my question....

the clutch, no matter how much I adjust the threaded things on the cable, does not work.

the pull feels great, and all the parts are there.

as I can figure out, there a few things that could be going on.

-the clutch pack could be too tight, too much torque on the bolts and springs. so, no matter how much I pull, the clutch plates will not seperate.

the more likeley scenario....

scenario "B"- the clutch, which worked great before the top end rebuild, sat fo a LONG time without any oil. the engine still has not been run, since I put in the oil two days ago. (waiting on the exaust pipe) the clutch pack just needs to be warmed up and lubricated and stuff after sitting so long.



the clutch may just need to be "freed up" too.

I once read a thing about a guy who let his bike sit for years, got water in the clutch, and needed to break his clutch loose for the pulling of the clutch lever to do anything.

while not that drastic, this may be a similar case.


I am gonna go with scenario "B" If after riding it for the first time, this Is not the case, I will open it up and take a look.




also, andyone have any good info on this bike or engine? any good things about the engine or chassis?


anyone have any imput? do you agree with scenario "b"? scenario A? scenario C?


Thanks!

-Alex

the ball bearing...

what exactly does it do?


would the clutch pull feel normal, and pull all the way without it?

because, the clutch pull feels normal, but when I go to roll the bike with the clutch pulled in, the motor still turns.

ok, thanks.

my ke 175 does'nt really.

this is also a former racing bike, so the clutch is probobly pretty tight, am I right?

so you think that once it's running and all lubricated, it'll work fine?

yep. I guess I'll just have to wait and see! :)

anyone else have imput or ideas?

also, does anyone know how to adjust the rear shock on the yz 100?

ok, great, thanks.

thanks! yep, I'm thinking that that will very well might be the case. dunno yet, as my pipe should get here in the next three days.

also, thanks for the complements on the bike....

I'm really happy with it.