FZR 1000 EXUP

Not too sure the ultrasonic cleaner will do the job you are looking to do. If you brake them all the way down, all rubber out including the throttle shaft seals. You can boil them in soap and water and really get the carb bodies clean. Other than that, just a supper good through cleaning of all the jets and little passages should do the trick.

 

Thanks, I'll have to boil them when my wife's picking up an extra shift. I ground off the peened back of the throttle screws. Dremel did the trick with a conical grinding stone. I put a bit of wood in the vice and could rest the carb on that to support the shaft when putting pressure on the screw to get it cracked loose. It went well, till #4 and the screws were a little stripped. I got one to move, but one doesn't have enough left to turn with the JIS#2. Toying with grinding a slot.

 

I have them torn down. I saw some guide online that suggested to remove this plug (They call the "pilot merge cavity bung"). Seems like several passages meet there, so sounds like a nice thing to remove, but not sure I could find a replacement since it's not on the parts diagram. Tempted to leave it since the factory manual doesn't discuss removing it. Thoughts?

 

Leave it.
It's a very tight press fit. Unless you have experience with making a new plug to the correct tolernaces it's better to leave it be.

Boiling may be a good idea, but IMO petroleum residue is really only going to be completely removed from tight passages with a petroleum based solvent. Berryman's or the like.

 

Ultrasonic cleaner: Simple green (several squirts in the water), 50 degree C water, 10 minutes each carb body. I changed the fluid after 2 carbs, it was so dark.

 

After rebuilding the carbs on my ‘81 Seca 550 I knew I wanted a fuel injected bike next.
Current main ride is an ‘08 FZ1. I did one valve check on it a few years ago and it’s due for another one next spring. It has the 20 valve head as well.
I just took my time and it wasn’t too hard to check and replace shims as needed.
Hope you get the old girl running properly so you can rack up enough miles to do a valve check.

 

Thanks, I figure I'll have to get the valve check done eventually. I know it seems like a pain, but it won't be the most time consuming or challenging thing I've done!

 

Damn, these carb parts aren't cheap. I'm ordering a couple things from Len as well. Not skipping anything though. Rack is broken and I don't want to have to do that again.

 

Now, I'm ready for that re-build!

 

That FZR is in good hands.

 

Finally got the carbs put together:

I found I was missing the o-ring for one of the pilot screws, so I ordered a new one (can't just get the o-ring). Getting close to a start on this one!

 

nice job!

 

Quite a bit of stuff today with the gopro strapped on.

 

Eh, I'm on a roll

 

Couple small updates. Did some riding a week ago, here's a short video:



I picked up some brake upgrade options:

These are both bolt-on upgrades. The gold-spots have a coated alloy piston vs the steel one in blue-spots. Both have better stopping w/ less weight. I have an updated MC w/ external reservoir as well.

 

Nice project...couple questions for you.

With that high of a compression ratio...what octane rating are you using? Mixing race gas with pump?

Your imaging camera is very cool...is it the add-on for your phone or a separate camera? Seen an add-on screen for your phone made FLIR and wondered how good they are.

 

I just run 89 octane in the bike. AFAIK, haven't had any misfires. I should look up what it requires though!
For the thermal imaging, I use a Seek external camera for my phone: https://www.amazon.com/gp/product/B00NYWAHHM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

 

Latest mods... getting things set up to mount a new master cylinder with external reservoir.

 

Bringing the brake upgrade to a conclusion:

 

I finally tallied up the parts I bought to re-do the carbs. This doesn't include shipping or tax.

 

Never, never, never add up the expenses. That ruins the fun.

 

I'm not suggesting this isn't an outlier, but maybe the FZR1000s are hitting their stride?