550 only runs with spray bottle into carbs

[Chuck Fryer]

They are mikuni 32bs cv carbs with correct 82 550 jetting and settings.

[Steve]

They may have "correct 82 550 jetting and settings", but if they are spaced incorrectly, you WILL have problems.

For one other suggestion, try folding a shop rag in half, then holding it over the carb openings. If you clamp the rag on the two outer carbs, you can actually do a trip around the block, but it's not good enough to check the jetting. These carbs rely on smooth airflow into the throats. You should be able to start and idle the bike with no airbox, but you will have a hard time getting to anything higher than idle speed without SOMETHING over the carb throats to smoothe the airflow.

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[Chuck Fryer]

I was able to get it to start with my hand over two carb throats, thanks! I'll post pictures of the difference between them later today.

[Nessism]

There is more to the jetting than just the main & pilot. There are various air jets, needle sizes, jet needles, etc. Look at the OEM carb jetting sticky thread pinned at the top of the forum and see for yourself. Compare the 550 and 650 carbs for example, both as the same size and have the same spacing, but the jetting is quite different.

[Steve]

Compare the 550 and 650 carbs for example, both as the same size and have the same spacing, but the jetting is quite different.

Jetting can also change from year to year. Not so much because the bikes changed, but because Suzuki had to rush to meet the new EPA standards and set everything rather lean. In the following years, they learned that they could change this air jet or that pilot jet and get a better-running bike that still met the standards. Best suggestion would be to find the jetting for the latest year of that model, maybe even compare that to the jetting of the Canadian version.

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[Chuck Fryer]

Post edited to include above information ∆

[Chuck Fryer]

I did find the correct jetting info on this forum. I replace the following : main pilot air corrector fuel needle fuel needle seat valve. Also since the two Center carbs were spaced wider I was able to flip over the intake manifold boots and make the rack fit the head perfectly.

[Steve]

Also since the two Center carbs were spaced wider I was able to flip over the intake manifold boots and make the rack fit the head perfectly.

Now I am wondering if the boots were wrong to start with and they are now installed correctly.

Which way are the sync ports facing on your newly-flipped over boots?

If they are now facing up and toward the center, you are going to have a ^^%$%^$ time trying to access them to sync the carbs.

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[Chuck Fryer]

I wonder what these came off of?!?

[Chuck Fryer]

You can see the difference in the brackets that hold them together.

[Chuck Fryer]

Yes, it will be tough to sync.

[Nessism]

Your carb boots are on wrong. The sync port screw should be down on all. And there are two different types of boots on the head, so they need to be oriented correctly.

[Chuck Fryer]

Yes Ed, but with the carb rack I have, this is the way they fit