What did you do to your Yamaha today?

Re-lubed the throttle cable and throttle grip, was sticking on me yesterday morning.....

Checked the plugs after last weeks tweak, left side tan, right side still a bit too gray.... more tweaking tomorrow, may pull the carbs and clear out the enrichment tubes as they seem to be clogging.... (inline filter still letting some fine crap through it seems... :/ )

 

Couple pics. A little blurry. The speedo pic just shows that it worked (has a couple miles on the odometer).

Speedo works! Ta da!


Nubs on the tire...mmmm....you can see my welding helmet hanging on my welder under the bench in the background. I'm easily amused.


My crankcase breather filter to match the pods:

 

Not a whole lot. New battery is on the way. Filled the old battery with water and set it on the charger. We'll see how that goes...

 

schmuck, you consider them seperate carbs because each one supplies it's seperate cylinder.
You fine tune each cylinder to run perfectly but then you have to adjust sync screws to get each cylinder to work in unison with the other 3 so they are all 4 working together.

By cranking those sync screws more than the nickle you are surely getting some cylinders to do more work than the others and also causing some cylinders to work harder too.

If you really want to do fine tuning there are some tools that I feel you absolutly MUST have to do the job.
Colortune
Sync Stick or guages or E.G. Analizer (I prefer them in that order)
YICS tool ( I've done it without... just not as good)

Then there is the need to learn to use those tools correctly.

If you adjust your sync without those tools, your just asking for trouble!

Sorry for sounding so negative, but it's the cold true facts

 

I was talking about Pilot Mixture Screws.
Sync Screws ... that's a whole new ballgame.

You have to start with them Bench Synced and Pilot's Preset to 3 Turns Out.

You should have the YICS Tool or Stuff the YICS Passage closed.
Sync the Vacuum Ports.
Get them Butteryflys synced right ... that's the first key element.

Move to Pilot Mixtures.
Get your bike able to Idle and respond to the application of power out of the hole.

The rest of the story is Tweak City!
You Tweak individual Pilot Screws as needed (or as wanted) for the best dialed-in performance you can tune the bike too.

 

I bought a gel seat cushion.

Now I want to say that with my bad back 150 mile trip is pretty uncomfortable.
Now the pad takes away the vibration and distributes my weight a little bit better.
I think I can ride all day now.....well let see.

 

threw the frame out
terminal case of rust cancer

 

Pulled the carbs and cleared out the enrichment ports...slightly clogged....
some sediment in the carb bowls... grrrrr filter definately letting stuff through... (add buy new inlines to the list), tweaked the mixture srcews a bit while they were off. Bought some brake fluid, figured I would give the lines a flush and top off with some clean fluid.... hehe, you guessed it, screws in the master cyl are stuck.... something else to work on over the next few days...

Did a test run, she has a nice growl now for a twin Will let the plugs tell the story later in the week....

 

Those damn master cylinder screws. I now have a nice c clamp as "bling" for my XJ.

 

Ouch..that's NOT what I wanted to hear
Soaking them in PB blaster...will do so for a couple of days and try again...

 

Those screws ought to come right out if you use an Impact tool.

Worst case: Drilling them out!

Even if you have to drill them out ... (Like I did) ... there IS enough meat on the Cylinder to allow for drilling and tapping it one oversize.

Yo have to enlarge the Screw Hole on the Cover too. But, it will make a nice seal and look great if you bump-up a size and use stainless steel Cap Screws to hold the Cover on.

 

Rick - did all that. But... take it from me... be VERY careful when drilling it out. The screw head didn't leave enough "body" to remove from the master cylinder. When drilling out the body... the bit broke off, deep in the hole.

IOW, FUBAR.

Those bits are very fragile.

 

I've had to drill the left bolt in the master cylinder twice. After the second time, I made sure to clean the bolt hole out thoroughly with brake cleaner fluid.

As for the bit, I used a fairly small bit. The idea was not to so much drill out the screw as to give my Easy-Out bit something new to grab onto. Drill a little, then take a #2 phillips screwdriver you don't like so much and bang it into the head. Between the weakened bolt shaft and the extra places to grab, the Easy-Out pulls the bolt right out.

Added water to the battery. Some of the cells were quite low. Attached charger to it for a while (not in the bike), but I could hear the batt bubbling quite a bit, so I disconnected it. I didn't *see* any bubbles, but neither did I look all that carefully. I'll have to see if the new batt behaves similarly when it gets here on Wednesday.

Batt still shows 13.x Volts, so not totally useless.

 

I'm goning to have to disagree. I've posted my experience with the Colortune plug I had gotten from ebay in the past, and it was NOT a good one. I sent the bloody thing back to Britain, and flat out told them I was never using a Gunson product again. If it says Gunson on it, it's not touching my bike. Hence, my wanting an exhaust gas analyzer.

I have the four vacuum gauges, and the homemade YICS. I know where I'm at as far as sync screws go, but I still think I'm going to pull the carbs and start from scratch. I'll probably also recheck the compression while I'm at it, and I need to make a new gasket for the alternator cover, because the last one kinda fell apart on me when I went to check the brushes.

(edit: Just checked, and compression is almost dead even across the board: 130/130/130/125. I think I followed protocol: warm engine, no plugs, throttle wide open.)

 

Today I cleaned, and polished, and cleaned and removed grime and cleaned some more. Lots of riding in the rain last week and I also used some spray grease on some items like foot pegs and the side stand. The overspray combined with road grime made a nasty sticky mess all over my pipes. I know not to do that again!

Oh and then I went for a ride to show off my hard work!

 

if it were me I wouldnt pull the carbs to sync if you have the guages and they work right.
I wouldn't just arbirarily turn one of my sync screws though, I hook the sticks up and use the homemade YICS tool.

 

I replaced the rear brake shoes. It took longer to get out the tools, and put them back away than it did to do the job.

 

I pulled the alternator cover, cleaned off what was left of the old gasket, and set about making a new one with the stuff I got at Pep Boys. While I was in there, I figured I'd check the brushes again, for grins. It turns out that the brushes I thought were well within spec... well... weren't.

Oopsie!

 

I rode it and remembered that I need to do both brakes soon. Anybody know a good place to get shoes and pads?

 

I took my 4 hour riders refresher course, so now I can get on my 750, got to ride her for the first time in 5 months. as far as work, she got all the lights wired up, now I have LED Lights on my Vetter Trunk...... Pics to follow