Venture Capitalist

I check the links and those are the same as my local Yamaha parts store has. the hose ended up being one they don't have and can't order. it is shown in the diagram but there is no price or place to check to order either. in the pic that is one very thin metal piece and that side doesn't look like it every had any threads. haven't look down in the hole yet, going to do that after I get back from auto parts store with a hose. hopefully someone can figure out what to do then. if that is what you call a smudge nipple in the pic, can I buy a new one of those?

ok trying to send a pic

I was able to undo the back part of the frame and get the tank out of my way but then I was holding the hose clamp together with a pair of needle nose and when I pulled up on the hose a really thin piece of metal came with it and still stuck to the end of the hose. Now there is just a hole in the top of the head with nowhere to clamp the new hose to. it was getting dark when I got it off so I couldn't see if there are any threads down in there, but it has me worried. is there some kind of piece that may you thread into it and clamp the hose to the end of that? I spent hours looking over the service manual and I didn't see anywhere that it says anything about replacing that hose.

I got the old hose off but I think I have a problem. while I was squeezing the hose clamp with a pair of needle nose my friend pulled up on the hose and when it came off there was a really this piece metal that the hose was clamped around still. now there is just a hole where the hose was clamped and nowhere to clamp the new one. i'm hoping maybe there is some kind of piece that screws in there and the hose then clamps to it. Are you familiar with that part at all.

well I got the old hose off, but I think I have a problem. I was working the hose clamp up using a pair of needle nose while a friend was holding the light for me, he reached down and pulled up on the hose and if came off with a really thin piece of either aluminum or copper where the hose was clamped still attached to the hose. Now there is just a hole in the top of the head with no place to clamp the new hose. Did I break off a piece? Capital Yamaha didn't have that particular hose and said they couldn't order one. Nobody has it anymore and they told me to just take the old on down to an auto parts store and have them cut me one. Are you familiar with that part of the bike or that piece.

ok I found the problem, the main hose going into the top of the head has a big crack in it, I just poured water into the radiator and it came gushing out without even firing it up. Anyone know what that hose is called. Since i'm going to be working on it I think I will get a new thermostat too, since apparently from what you guys are telling me that is probably what caused the pressure build up in the first place. And with summer right around the corner I might as well take a look at the water pump too. btw when I top it off I always use 50/50, I never put straight water in it accept just now to see what was going on with it. I just wanted to say thanks to all the guys here that helped me with the good advice. Time to call the parts store now. THANKS EVERYONE!!!

pulled the plastic off the side didn't see anything obvious. there are two open ended hoses mounted to a bracket that says see service manual before removing carborator, what do those come from? and is it safe to fill the overflow bottle and fire it up so see if it happens again or I see coolant coming out anywhere?

yah all good advice. I should look at the water pump, but would that cause it to explode out of there. I mean it literally xploded all the coolant onto my leg. In looking at the manual it showed a little rubber plug on the side of the head, would water shoot out of there if the plug popped out? Now the overflow bottle up in the fairing, does that have a hose coming out of the bottom other than the one to the radiator? If so, would it all blow out of there all at once? Sorry if I'm asking stupid questions, this is my first water cooled bike. I have changed water pumps and thermostats on my cars before but that's about it

First I want to say thanks for the reply. In answer to your questions. I had just ridden it to the store about 3 miles away. The outside temp was really cold. I had to be all bundled up. It came from somewhere on the right side. It shot through that gap in the right side panel onto my right thigh. The temp guage approx. 5 mins before it happened was a little below normal running temp. I always keep an eye on it when riding cause since I got it, it has always had a tendency to run a little hot. Normal for it is about halfway between the halfway point and the red and in the summer at a stoplight sometimes it gets almost all the way up to the red and it has always leaked a little bit of coolant where from I don't know. I just have to add about a cup every month. Once again thanks for the reply Marcarl and hopefully this added info tells you something

Hello Everyone. I am new to this site. I purchased a 83 royale a couple of years ago and aside from having to put a new stater in it I haven't had any problems until now. I was sitting at a stop light the other day and all the coolant blew out of the right side onto my leg. It couldn't have been all that hot it didn't do any permanent damage to my leg. Just burned a bit the rest of the day and left a red mark. I am just wondering if this has ever happened to anyone else and if so, what caused it. Where should I start looking to make the repair? I would appreciate any advice anyone can give me