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Brain fart while carb cleaning

Started by kml.krk, March 10, 2020, 08:03:36 AM

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kml.krk

Hey,
I sprayed solvent based carburetor cleaner down the main jet holder tube and now I am freaking out that I messed up the diaphragms.
Do you think that a little bit of the cleaner that could leak into the diaphragm chamber could actually harm the diaphragm? I sprayed a little bit and then followed with a can of compressed air to blow it out of there (by there I mean the port where main jet holder sits, I had the jet holder unscrewed).
I won't be able to take a look at the carbs until Friday and I am freaking out a bit.
Yellow 2004: K&N Lunchbox, Leo Vince SBK, 2005 GSXR Turn Signals, 20/65/147.5, 15T front sprocket, Progressive Springs etc...

"Bikes get you through times of no money better than money gets you through times of no bikes." - Phineas

The Buddha

They can take a lot more than just 1 spray, no worry.
Cool.
Buddha.
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mr72

Just remove the diaphragms and inspect. You'll want to remove them and clean any residual carb cleaner anyway. It's two screws per carb, nothing to it. Never spray carb cleaner into an assembled carburetor. There are lots of rubber parts in there that will degrade.

I would pull the diaphragms out, dry them with a shop towel and maybe even clean them thoroughly with dish soap and water and dry. Inspect for deformation or holes and if all is good, put it back together. Having them both out will enable you to compare them so in case one just feels a lot softer or slower to rebound you might consider replacing it, it could have some damage even if it is still airtight.

I once did the same thing on one of my sets of carbs and the diaphragm came out looking like a dead jellyfish. But after I let it sit and dry out, it eventually returned to its correct shape. However, nothing in the world I could do would make those carbs work correctly, and while I don't know it was damage to the diaphragms, I have a sneaking suspicion it didn't help matters any. Since then I've been a nazi about not spraying carb cleaner on them because it's just something that doesn't tolerate solvents well and you cannot always easily identify problems that will affect function.

kml.krk

What's the best place to order new diaphragms from that ships fast? Would greatly appreciate a link. Thanks
Yellow 2004: K&N Lunchbox, Leo Vince SBK, 2005 GSXR Turn Signals, 20/65/147.5, 15T front sprocket, Progressive Springs etc...

"Bikes get you through times of no money better than money gets you through times of no bikes." - Phineas

johnny ro


kml.krk

A little update. I checked the diaphragms and they were completely fine. I finished cleaning the carbs and the bike runs good as new. The rpms were hanging a bit but I adjusted the idle screw and it went back to normal.
Yellow 2004: K&N Lunchbox, Leo Vince SBK, 2005 GSXR Turn Signals, 20/65/147.5, 15T front sprocket, Progressive Springs etc...

"Bikes get you through times of no money better than money gets you through times of no bikes." - Phineas

Bluesmudge

That's good. Carb diaphrams are not a cheap part to replace. Sometimes just as expensive to order an entire used carburetor off ebay.

The Buddha

Quote from: Bluesmudge on March 16, 2020, 11:02:15 AM
That's good. Carb diaphrams are not a cheap part to replace. Sometimes just as expensive to order an entire used carburetor off ebay.

I thought they were $15-16. But I bought from local dealer who gives me a near cost deal cos I've been a customer for nearly 20 yrs now.
Cool.
Buddha.
-----------------------------------------------------------------
I run a business based on other people's junk.
-----------------------------------------------------------------

Bluesmudge

#8
I just recently rebuild the carb on a '01 Kawasaki Super Sherpa 250 and Kawi wanted an absurd $110 for the diaphragm but a brand new carburetor from them was a reasonable $275. Maybe Suzuki is better at pricing. I admit I haven't purchased GS500 carb parts in a long time. If you ride the bike at least 1,000 miles per year the bike rarely needs the carbs looked at.

kml.krk

#9
They are about $20-$25 from bike bandit/partszilla. You need 2 so $50 plus shipping which comes out to about $60. Not terrible but I am glad I didn't have to buy them.
Yellow 2004: K&N Lunchbox, Leo Vince SBK, 2005 GSXR Turn Signals, 20/65/147.5, 15T front sprocket, Progressive Springs etc...

"Bikes get you through times of no money better than money gets you through times of no bikes." - Phineas

The Buddha

Ron ayers -
DIAPHRAGM MODEL K/L/M/N/P/R
13507-17C00 13507-17C01

$25.80 - Original
$20.90 - Discounted.

My local guys would get that for me around that discounted $$$ without shipping.

That's the first gen - didn't ever replace 2nd or 3rd gen so far.

Cool.
Buddha.
-----------------------------------------------------------------
I run a business based on other people's junk.
-----------------------------------------------------------------

user11235813

Carb spare parts, I had to replace my carb and ended up paying $200 AUD for one in basically new condition 3000km on it. A press fit guide inside the main barrel had come loose, otherwise all parts on the old carb were fine. Then I realised that a new pair of diaphragms would be $150 and that for not much more if you shop around you can buy a whole assembly. Just something to think about.

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