What did you do to your Yamaha today?

took the 900rk out for a ride yesterday, and everything was fine for about 5 mi, then started bogging and starving. I tried switching to reserve, prime, etc...........no help. Pulled the clutch in and she immediately died. I rolled into a driveway (turned out to be a driveway for a guy whose kid is into motocross as it turns out) and it would only turn over, no fire. WTF!!!! First day it's out in the spring!?!?!?!

So, I he and I just chatted and looked at all the trophies they had while I figured out how to get my truck and trailer.

Just for giggles I tried it again and it started right up. WTF!?!?!??!

Found the problem..............when you're out of gas, you're out of gas and nothing will go through even on prime until you lean the bike hard on the side stand and enough gas can get around to that side of the tank to get down to the carbs again. I bought a gal of gas from him and rode the last 1 mi to the gas station where I was heading in the first place. DUH!!!!! That's what I get for not filling it up n the fall. Note to self: If I ever do that again, kick myself!!!

Dave Fox

 

No gas gauge on that model?

 

Took the 400 out for a 40 km ride. Ran like a dream, other than a possible weak battery (That's what I get for leaving it in the bike all winter)

 

First day out yesterday with new s/s hoses, calipers done, forks done, carbs cleaned, tank Caswell sealed, yada, yada. HUGE difference in the brakes, thanks for all the info and opinions on stainless vs rubber. I filled the tank, brought it home and this morning when I went into the garage I noticed fuel leaking from the overflow on carb 3...Arrrgh.

Off with the petcock that was not shutting off and I found if you are REALLY careful, you can separate these without having any spare parts. I polished the seat that the diaphragm "o" ring seats on. I used a liquid metal polish with a sharpened pencil wrapped in a blue paper shop towel. The sharp end of the pencil conforms perfectly with the tapered seat. It took very little "lapping" to mirror-polish the seat.

I think it failed because I had the petcock out all winter with no fuel in it. The fuel evaporated and left a brown cruddy deposit. Tested it with my vacuum pump, new Rotella 10-40 and filter, and I'm back on the road. I think a petcock kit will be part of my fall-winter Chacal parts order.

I also had a local (Ottawa) shop replace the blue and red decals on my fairing that were damaged by the PO. They look perfect, I wet sanded the fairing with 1000 wet and sprayed on two coats of Nason clear to seal everything. I'll post some photos after I receive my newly ordered Stebel 139dB horn. Hopefully it will fit into the spot vacated by the original horns.

Many thanks to all the posters and to Len for parts and assistance. Great forum!

Dave 83 900

 

The 900 Horn Circuit is not a Heavy Duty supply.

The Horn Button Closes the Circuit to Ground.

To avoid potential problems with the Horn Button,, ... Rig the Stebel Horn through a Relay.

Run +12V from the BATT to the RELAY --> LOAD IN
JUMPER --> +12 LOAD -To- +12V Relay Trigger Post.
Run +12V LOAD OUT -To- STEBEL +12V IN
HORN OUT to ---> GROUND.

RELAY Trigger GROUND Wire -To- 900 HORN Ground at Harness
Grounded when HORN Button Depressed.

 

Yeah, it has a gauge, but I was looking at miles,not gauges. There was only about 119 mi showing n the odo, so there should have been plenty of gas. I do recall now, putting it away with a note that I need to fill it up. Oh, well..... all's good now................. 'cept I gotta pay more attention to the IDIOT gauge since it appears that is starting to register things now....

Dave Fox

 

Thanks Rick, the only thing that I can add to your list is a fuse on the supply side.

A relay is supposed to accompany the horn.

Dave 83 900

 

New steering head, swingarm & wheel bearings. Rebuilt forks with new seals. Rebuilt anti-dive units & speedo drive. Painted wheels. Rebuilt front brake calipers. Upgraded fuse block to blade style. New rear brake shoes. Cleaned & lubed all control cables. Oil & filter change. Checked & adjusted valves-3 new shims. Cleaned & rebuilt carbs-stage 3 dynojet, polished bores-clunk test, clear tube & bench synch. Had ignition probs-replaced coils & TCI unit & tested pickup coils. New spark plugs. Had headlight probs-did some re wiring. Added inline fuel filter. Today I finally got to ride with the bike running right & am very satisfied with the results. Many thanks to all here (too many to list) who helped me solve problems. You all have made a fellow XJ rider very happy. Hope I can contribute back sometime. XJ Bikes 4Ever!

 

Rode it. Yesterday too. And probably tomorrow.

 

Fully disassembled the carbs and boiled them in lemon juice. Waiting for a package in the mail (throttle shaft seals) to finish buttoning them all back up and re-check the float levels. Fingers crossed it finally runs like it should after all this!

 

Put 150 miles on it!

 

Hit the 500 mile mark (since I bought it) on my way home from work. Time to become more adventurous and take a few extended rides. Still gonna ride it to work everyday though.

 

bench sync... didn't get much time at all today...

 

tore the motor down on the 750 need new rings

 

JUST GLOAT ABOUT IT WHY DONT YA



>continues to wrench on alternator<

 

Tried learning a few new songs for the girlfriend on mine today.

 

hahah I own that guitar!
I installed new alternator brushes and crash bars...highway pegs to go on tomorrow!!!!

 

Rotated my handlebars down some. All wires and cables still have plenty of slack and nothing hits the gas tank at full turn.



Also converted tail/brake lights and gauge lights to LED.

 

Replaced a tail light bulb, lol, have left side blinkers again!

 

New tires.