83 Suzuki GS750ES won't start after carb cleaning! Please help.

[stephendotexe]

The pilot screw is seated gently then turned out 2ish turns back depending on model etc..
When looking down at the carbs it's the screw at the front centre on the carb body, it is not the balance screw.

In that case I'm pretty certain I didn't remove that, which explains why I didn't see any o rings the first time. I'll double check when I get home to make sure though.

Just to verify, should this air jet be screwed in snugly or turned back?

[Ranger]

In that case I'm pretty certain I didn't remove that, which explains why I didn't see any o rings the first time. I'll double check when I get home to make sure though.

Just to verify, should this air jet be screwed in snugly or turned back?

Snug it up.

[stephendotexe]

Shoot. Well I'm out of ideas for now then. I think I'll pop it back on and try to start it one more time. If it still doesn't work I'll take it off, disassemble it, and do a complete dip and try again.

Thanks for all your help, guys. I'll give an update in a few weeks after its dipped and reinstalled.

(It's hard to go back to commuting by bus after I've had this baby)

[Ranger]

FEW WEEKS? No. Worst case you can get it fired up and rideable.

Had I still lived near you I'd just come up and help so I could mob up to Tiger and have fun along the 90 til Seattle in all the snow my lady says is up there right now . Theres some guys that live near you on here that may be able to help if you need a hand or a visual.

Just try what we've said, update on what its doing and go down the line. Shouldnt take but a hour or so to find the problem if you're updating us. I'll subscribe to this so it'll pop up for me whenever you update that way you can get a quick answer.

[jetta90]

Just out of curiosity .........when you cleaned the carbs out did you by chance open up the diaphram/needle portion of the carburators? You would access the diaphram of each carb by removing 4 screws found at the top of each carburator. Rubber diaphram and needle come out as a unit.
If you pulled these out and proceeded to disassemble the needle from the diaphram make sure you reassembled them with the tiny c-clip in the right groove on the needle!!

Heads up - some CV carbs from that era provide the option of several slots on the needle where the c-clip can be installed.............while some of these same CV carbs have only one slot. It had to do with emissions and the EPA.
The carbs off my 84 GS 750E came with the needles providing several slots (4 I think) on the needle......I'm also in Canada so the carb set up on Cda versus US models may differ.
Hope my ramble makes some sense.

[Ranger]

Just out of curiosity .........when you cleaned the carbs out did you by chance open up the diaphram/needle portion of the carburators? You would access the diaphram of each carb by removing 4 screws found at the top of each carburator. Rubber diaphram and needle come out as a unit.
If you pulled these out and proceeded to disassemble the needle from the diaphram make sure you reassembled them with the tiny c-clip in the right groove on the needle!!

Heads up - some CV carbs from that era provide the option of several slots on the needle where the c-clip can be installed.............while some of these same CV carbs have only one slot. It had to do with emissions and the EPA.
The carbs off my 84 GS 750E came with the needles providing several slots (4 I think) on the needle......I'm also in Canada so the carb set up on Cda versus US models may differ.
Hope my ramble makes some sense.

If you're talking about to raise or lower the needle height then, no they dont.

[alke46]

But now the bike won't start. It doesn't even start to catch. The engine turns over but there is no combustion.

When I read this, my 1st thought was "did he inadvertantly hit the kill switch?" Always thinking of the kiss rule of thumb. You know the one,
Keep
It
Simple
Stupid
Good luck finding the cause to your troubles.

[jetta90]

Yes Ranger - that's what I'm talking about. Wasn't sure if the US models came with the adjustment option due to EPA regulations of the time.

[stephendotexe]

Hello again, everyone. I wanted to do a quick update. The bike is running and working SO MUCH BETTER! Before the carb clean I could barely idle at 2.5k rpms, and would get surging of about 300 rpms up and down. Now it runs nicely at its spec 1.3-1.5. The gas mileage has greatly improved, and I no longer get random and constant backfiring. Those jets were clogged.

Here's what went wrong. Apparently I just didn't put it back on snug enough. When I took it off the second time I replaced the fuel line but the line ended up leaking. It also started turning over really strangely because I someone burned out the solenoid somewhere in that process.

The mechanic took off the carbs, replaced and fixed the fuel line, checked out the carbs, did some random tune-up/tweaking, and replaced the solenoid for about $160. I consider it money well spent, and I feel pretty confident I can do it all myself in the future.

Thanks all who helped me out before. Now it's time to go cruising.