Ok, i am newly in to suzuki's and dont know much about them yet.  i recently purchased an 88 samurai and now its acting up.  When you first start it, it runs fine.  Once you drive it for a while and it warms up, it dies and wont start untill it sits for a while.  I am baffled!  I changed the coil because somebody said that could possibly be it but it acts the same.  Im sure its something silly and hopefully someone else has experienced this problem and can tell me the remedy. Any suggestions would be greatly appreciated!

Try changing the fuel filter

May be the fuel pump. I had a nissan that the fuel pump would get hot and constrict causing it to seize until it cooled off. Maybe the push rod on the mechanical fuel pump is sticking. Next time it dies, check for fuel while your cranking it over. My 2 cents.

-Adam 

does it sputter at all before it dies? and when it wont start does it just crank or does it sputter?

i had a problem kinda like yours and it was the cat had gotten plugged so it would only start cold..not sure if itl help

had a friend with the same problem drove us crazy.   his problem was a bad comp.  had that repaired.  been running great for 4 years now

Try changing the fuel filter

I changed the pump and the filter and now it wont run at all.  Its not getting any fuel to the carb at all now.  Before it was working fine untill it got good and warm, then the fuel supply would slowly get cut off.  Now, nothing at all.  Is there a way to prime the system?  Seems like since i opened the lines i made it worse.  Should i go with an elec. pump?   Thanks!

Try putting some fuel in a small squeeze bottle or container. Pour some down the carb and keep it running like that until it wil run on it's own. Sometimes the pump can't prime itself because the engine isn't turning fast enough.

I changed the pump and the filter and now it wont run at all.  Its not getting any fuel to the carb at all now.  Before it was working fine untill it got good and warm, then the fuel supply would slowly get cut off.  Now, nothing at all. 

Is the filter the right way round? IIRC there is an arrow on the body that shows the way the fuel should flow through it

Did you make sure the new fuel pump had movement too it. I had a new one that was stuck away from the push rod. I had to pull it off, and move it a couple of times to free it up. Also, if that rod sticks pushed away from the cam, it would not allow the pump to operate. I don't know if those rods go bad or not. You might pull it out and wipe it off, then throw a little lube on it in case it's just a little sticky. In my case, I had added some Lucas at a prior oil change and wonder if it could halve caused the rod to stick. Not sure though. Along with the priming suggestion above, this should solve it. I just kept spraying starter fluid until it was primed enough to run. Hope this helps.

-Adam

Quote from: jwinn on March 03, 2007, 10:12:08 PM

I changed the pump and the filter and now it wont run at all.  Its not getting any fuel to the carb at all now.  Before it was working fine untill it got good and warm, then the fuel supply would slowly get cut off.  Now, nothing at all. 

Is the filter the right way round? IIRC there is an arrow on the body that shows the way the fuel should flow through it

Yeah i double checked that thinking i put it on backwards but its right.  I took the new pump off to put the old one back on thinking maybe the new one was malfunctioning and now i cant get the rod to go in far enough to get either pump on!  This is getting aggervating!  Is an electric pump a bad idea?

ok well when this happened on my samurai there was a pin hole leak in the fuel line right above the gas tank, it was sucking in to much air and not getting gas... look around to see if you can see some wet gas spots..

Another thing is the float is stuck closed, unhook gas line at carb have someone turn it over for a sec see if gas pumps out... if it does, then its the carb... if not its probally the sending unit in the tank...

ok well when this happened on my samurai there was a pin hole leak in the fuel line right above the gas tank, it was sucking in to much air and not getting gas... look around to see if you can see some wet gas spots..

Another thing is the float is stuck closed, unhook gas line at carb have someone turn it over for a sec see if gas pumps out... if it does, then its the carb... if not its probally the sending unit in the tank...

I went ahead and installed an elec. pump. i thought all my problems were solved then i drove it for a half hour and it did it again.  i pulled the outlet hose off the pump and it is pumping fine.  but when it warms up it is still starving for fuel in the carb. the carb is a weber. has any one ever had this problem before? i guess im gonna try to take the carb apart and clean it. im lost again!

I took the carb off and took it apart and everything seemed ok.  It wasn't gummed up or clogged.  The float seemed to work fine.  Someone suggested that it was vapor locking, to take off the gas cap next time it started dieing but it made no differance.  I even pulled the inlet hose off the carb and turned on the pump and it pumped a gallon into a gas can in no time.  Could this be anything electrical?  Last week  my battery hit the hood and caused my clutch cable to melt in half where it enters the firewall.  Since then the thing has done this it's been acting this way.  I didn't think it was related because the carb is what controls the fuel which runs the engine, not an ecu.... or does it??  I guess if i cant figure this out, its to the shop it goes.  I hate to do it but i want this thing running!  Its killing me just sitting there.  I've owned it for a week and haven't got to go wheelin yet!  Thanks for all of your help!

had a friend with the same problem drove us crazy.   his problem was a bad comp.  had that repaired.  been running great for 4 years now

How was the comp. causing it to do that?  I didn't think that carb. engines rely on an engine management.  where is the comp located?  I saw a couple different boxes under the dash.

I even pulled the inlet hose off the carb and turned on the pump and it pumped a gallon into a gas can in no time.  Could this be anything electrical? 

What pressure is your pressure regulator set at? A weber only needs 3-5 pounds of pressure.