Help Diagnose my No-Start

Hey guys, I have a 1976 Kawasaki KZ750 twin that won't start. It has a good strong blue spark. Just rebuilt the carbs with a K&L kit (except for one pilot jet that was stripped and wouldn't come out). Now the bike won't fire up. THoughts?

If I spray a little starting spray into the carbs, the bike will roar to life for half a second.

Thanks

Possible fuel starvation.

Has the clear tube test been performed to assure fuel is getting into the float bowls and remaining at the correct level inside the float bowls?

Is the fuel fresh and clean (no water, etc.)?

Is an aftermarket fuel filter installed in the fuel hose?

Good Fortune!

Patton wrote: Possible fuel starvation.

Has the clear tube test been performed to assure fuel is getting into the float bowls and remaining at the correct level inside the float bowls?

Is the fuel fresh and clean (no water, etc.)?

Is an aftermarket fuel filter installed in the fuel hose?

Good Fortune!

Fuel is clean, new fuel filter is on the bike between petcock and carbs.

What is the clear tube test and how do i perform it?

The factory service manual is available via the following links.

kz750twins.com/?p=15

biquetoast.com/cgi-bin/750ManualList.cgi

Good Fortune!

How did you verify that the stripped pilot jet is clear?

Patton wrote: The factory service manual is available via the following links.

kz750twins.com/?p=15

biquetoast.com/cgi-bin/750ManualList.cgi

Good Fortune!

Cool, ill check that out tonight, thanks!

Nessism wrote: How did you verify that the stripped pilot jet is clear?

I didn't, and i plan to drill it out. But i assumed the bike would still start since AT LEAST one of the carbs has a good pilot. Or at least cough and sputter and try to start haha, but it doesn't.

Did you try to push a guitar string through it or strand from a wire brush? Carb and choke spray with the tube should squirt through it if it's clear.
Steve

Modrummer wrote:

Nessism wrote: How did you verify that the stripped pilot jet is clear?

I didn't, and i plan to drill it out. But i assumed the bike would still start since AT LEAST one of the carbs has a good pilot. Or at least cough and sputter and try to start haha, but it doesn't.

No disrespect intended, but a better approach would be to fix the carbs properly before putting them back on the bike and expecting the bike to run.

Another thing that's critical is verifying the choke passages are clear and open. Shoot carb spray through the pick up tube and make sure it reaches the choke plungers.

swest wrote: Did you try to push a guitar string through it or strand from a wire brush? Carb and choke spray with the tube should squirt through it if it's clear.
Steve

Ill give this a shot as well, thanks.

Nessism wrote:

Modrummer wrote:

Nessism wrote: How did you verify that the stripped pilot jet is clear?

I didn't, and i plan to drill it out. But i assumed the bike would still start since AT LEAST one of the carbs has a good pilot. Or at least cough and sputter and try to start haha, but it doesn't.

No disrespect intended, but a better approach would be to fix the carbs properly before putting them back on the bike and expecting the bike to run.

Another thing that's critical is verifying the choke passages are clear and open. Shoot carb spray through the pick up tube and make sure it reaches the choke plungers.

None taken! The bike hasn't run in almost 20 years so i was hoping to verify that the engine would start and run. When i couldnt get the pilot screw out, i just said screw it (pun intended ) and put the carbs on the bike because i figured it should still start.

Thanks for the suggestion, ill try it!

If it fires right off with the spray then its a no brainier that the carbs are not working.
sound to me that no fuel at all is getting into the carbs or they are completely stopped up .can you see fuel in the filter?