change the fuel pump out becuase the old one wasnt pumping well new one in and it idles and drive like a dream but...... now i have a lag in the throttle like when im leaveing a light or shifting gears theres a pause what is this caused by??????

second thing is when ur under the hood with it idling and u pop the throttle it dies off then goes and its very annoying

accelerator pump or mid range jet/main is plugged.

poped the air cleaner top off and pumped the throttle and i could see gas squirt in so jet maybe? or accel pump is going south maybe....

Is it the hitachi carb type or is it the carter weber?

its stock so i assume hitachi... although how do i tell im new to the carb subarus

may not be related, but mine had that flat spot in it the first couple years i had it (thought it was just the way the car ran) and i advanced the timing from 8^ to 10^ BTDC and it eliminated the flat spot and gave it lots more power.

 

also the only gas i run is amoco (BP) 93 oct.

 

hope it helps,

thanks, Bill

checked the timing im running at 5 degrees adavance is that the problem do i need to advance it somemore

also vacumm advance can is bad and disconnected maybe that is adding to the issue

also vacumm advance can is bad and disconnected maybe that is adding to the issue

 

Ya that would be a good place to start.

got the last NOS one in the world apparently through subaru..... wont be here till thrusday should i put the timming ahead though?

got the last NOS one in the world apparently through subaru..... wont be here till thrusday should i put the timming ahead though?

i'm not really qualified to give any advice, just suggestions based on my 3 year struggle to keep mine running.

 

that being said, i'm not sure what your motors timing is supposed to be set at specifically so i cant give you specific numbers.

 

but if you have the ability to check and reset the timing properly and accurately then i personally would try advancing it a couple degrees ahead of factor specs (as long as it dont make it ping) and see.

made a world of difference in mine.

especially if you have time to kill waiting on other parts anyhow.

 

good luck

 

Bill

took ur advice put the timming ahead to 9 1/2 degrees it went away a little bit i guess i gotta wait and see if the vacuum advance can will fix the problem...

this sounds very simular to what my 85 brat is doing, except mine doesnt like to start either. definatly let us know if hte vac advance sorts out your problem.

make sure the pump jet is squirting fuel into the barrel of the carburetor.

 

Jim

installed new vacuum advace can still have the bog at the hit of the throttle.... accellpump looks kinda weak could that be my problem and im only getting 18MPG......

whats the screw on the front of the carb supose to be set at... i found out my dad played with it will i was getting tools maybe thats why i have the bog its set at 3/4 of a turn out...