'96 670 summit not getting gas

D

dleishman

Free Member

Feb 3, 2011

2

0

1

• Nov 26, 2011

• #1

Purchased the sled with one side burned down. Had the cylinder worked over and put in a new piston, new plugs, cleaned the jets. Starts and runs with 2-3 primes but won't stay running unless I continue to prime. Even tried a different coil, same result. Any suggestions? Do the fuel pumps go out on these frequently?

 

S

snowguthrie

Free Member

Feb 10, 2009

202

18

18

Gooding Id

• Nov 26, 2011

• #2

check the pickup tube in the tank make sure it has not broke off or its filter is not plugged. and make sure your line is good from fuel pump to the crank case. for the vacum

 

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Tmann

Free Member

Apr 20, 2009

557

241

43

Washington

• Nov 27, 2011

• #3

Is the HAC system still installed? Are yousure you have all of the tubes properly connected after you had the motor torn apart

 

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sledsrock

Well-known member

Nov 26, 2007

1,826

510

113

Grand Junction, Co.

• Nov 27, 2011

• #4

dleishman said:

Purchased the sled with one side burned down. Had the cylinder worked over and put in a new piston, new plugs, cleaned the jets. Starts and runs with 2-3 primes but won't stay running unless I continue to prime. Even tried a different coil, same result. Any suggestions? Do the fuel pumps go out on these frequently?

Click to expand...

Good advice from the previous posts....if it runs at all it's not the coil, the fuel pumps are pretty reliable, could it be the pump? yes, but highly doubt it. Sounds to me like plugged pilots jets, you say you cleaned the jets but did you remove them all (pilot jet included) and soak em and blow em out good?

 

9

925balls

Free Member

Jun 22, 2008

166

5

18

idaho

• Jan 7, 2012

• #5

i just finished the same not fueling issue today and the primers were pulling air crimp your primer lines and start it if it runs and stays runing then you need a new primer it will pull air before fuel and the system relys on vacum pressure to pull fuel out of carbs alos make sure your carbs are tight on the motor

 

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bullelkklr

Free Member

Apr 6, 2010

24

2

3

• Jan 18, 2012

• #6

before you buy

Test out your fuel pump before you buy a new one - it is just a diaphram - not much to go wrong. Presure it with your mouth - the manual has a test for it...simple easy.

Most likely you have a crack in a fuel line or the primer somewhere....but it could be a multitude of things....

I had similiar problems, but had connected up my vaccum lines wrong. Look at the diagram in the manual....one of the HAC lines goes to atmosphere....or it won't run right.

I put a bit of grease on each vac line and then used baby tie wraps to make sure my vac and fuel lines aren't sucking air - cheap insurance....

let us know what you find out.

 

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packerfan66

Free Member

Feb 16, 2011

23

3

3

• Jan 25, 2012

• #7

These are notorious for fuel primer issues. Had one that kept sucking air in the fuel line due to the primer

 

9

925balls

Free Member

Jun 22, 2008

166

5

18

idaho

• Apr 8, 2012

• #8

take some vise grips and pinch the vac lines from the primer you may have bad seals in the primer itself
good luck