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Posted

I have just acquired a 1979 Yamaha 1100 xs have not even had a chance to look it over yet. I do know that the frt. calibers are stuck . What is the proper way to try to free them and also would like to here any thoughts on this bike. Thank you in advance.

Posted

Sometimes on those, the spooge holes get plugged. If you open the bleeders and the calipers free themselves, then the holes are plugged. If not, then it is calipers or lines usually.

Posted

Mine are stuck in place bike sat on trailer for ten since the guy moved . On a trailer in the garage for ten years always registered and never started ran great till the day he moved and then sat. What a waste, his loss my gain .

Posted

I'm thinking corroded caliper pistons. Try what Doug suggested. You can unbolt the calipers and find something to pry the pads apart while you open the bleeder and see how easy they move. For setting that long I STRONGLY recommend flushing the hydraulic systems at a bare minimum...

Posted

Spooge holes are the return holes in the bottom of the master cylinder. They are tiny orifices and plug up from old fluid. What happens is you squeeze the brake and when you let go, the plugged holes do not let the brakes release. I have also seen old brake hoses separate and close up keeping pressure on the calipers. I agree with the others, your life depends on them, it's best to go through the brake system and repair what is needed.

Posted

Hi Turtle

IMHO,, if it were mine I would start with the motor before you even think anything else,, only cause if the motor/tranny aint decent aint no since (unless you have some attachment to the bike) to go on..

Check the air box for mice nests, pull the plugs..

will it roll over and can you rock it thru all the gears?

If so, in neutral stick a battery on it and check compression (either make sure your kill switch is off when you spin it with starter OR ground each plug),, if you get above 120 pounds it should run,, are all jugs matching on compression tester.. If so good!!

Spin again and check plugs for spark.. As I recall the 79's were CDI so no points cleaning possible if no spark..

Yank the carbs and clean em.

This is VERY important in my experience,, you are gonna have to pre lube the cam assemblies BEFORE ya fire it up,, I know for a fact the 1100 Yam's are steel cam's in aluminum journals,, fire it up on non prelubed cams and it only takes a second of running to smudge the journals.. You will have to remove the rocker covers to do it.. Take the covers off, squirt oil on the cam assembly (you will probably find small counter sunk holes in the top of each upper journal and on the rockers, make sure you cover em good as you spin the motor,, can be messy but must be done!!

Back together,, put the carbs on an IV bottle so you know ya got good gas going to em, put a teaspoon of raw gas in each jug, plugs in, hit the starter and you will instantly find out whether or not ya got a good one!!!!!!!!!

 

Just some thoughts,, hope it helps somehow..

By the way,, those XS's were a FUN, reliable bike!!!

Good find!!

Puc

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