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High End fuel starv

G

gene_d

Regular Contributor
Hi. I have a 1989 88spl. The m

Hi. I have a 1989 88spl. The motor runs great until about 4000 rpms. Above that the motor starts to die out. I found if i keep pushing the key (once every 2 seconds) the motor will hold 5000 rpms and run great. I know this is a feul problem. I have 2 six gallon tanks with their own hoses. I tried them both with the same result. Any ideas on what to look for?
 
"sounds like fuel pump i recco

"sounds like fuel pump i reccomend a new one / rebuild kit.check all other options first filter, lines,under hood powerhead lines for leaks."
 
"Oh, 1 thing to add. This is m

"Oh, 1 thing to add. This is my first run on a rebuilt motor. Carbs were both torn down and rebuilt. Although that does not mean I got everything right."
 
If it is the fuel pump (or

If it is the fuel pump (or leaks in the fuel system) pumping the primer bulb regulary will get it up to speed and keep it going. Dont just rush out and buy a new pump until you have confirmed that the old one is not working properly.
 
make sure you are pushing in t

make sure you are pushing in the gas line until the little connector snaps into place on the motor and the oring in the connector is good..the gas lines should be 3/8 lines..not 1/4...any air leak may cause this problem....good luck..Carl.(i apoligize for jumping in but i run a 88 and have for 14 years)
 
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