Bobcat 324 fuel issue?

[lescan]

I had a similar issue with my compact tractor where low rpm was fine but brush hogging at high rpm would cause the engine to bog. Turns out there was a twig in the fuel tank obstructing flow. Now when that happens I push air up towards fuel tank to remove any material preventing flow. I’m sure there must be lots of crap in the tank but I haven’t found an easy way to clean it out.

 

[blizzardslayer]

Have you considered microbial contamination? This problem mysteriously plagued me for years. I now have run a microbial biocide in my fuel for at least five or six years now and have had no problems since. You may have to drain your tank and change your fuel filter a couple times after the first treatment. Also try and keep your fuel tank full when you’re not using your equipment as that will help prevent condensation in your tank. Water is your enemy in fuel. It is the interface between water and fuel where microbe contamination grows. Also running a water disposal agent in your fuel doesn’t hurt either. I hope that helps.

 

[HayFarmer]

Algae got me twice before I wised up and started using biocide.

 

[Steelburner]

Check that worthless fuel priming bulb. Mine is always cracked and leaking.

 

[Fxfymn413]

I have had this issue a couple of times with my Kubota's. Turns out I let some bugs into the tank, most probably from the nozzle of the farm tank, that plugged the line from the tank to the fuel filter. The line is small enough to get plugged by a pretty small critter.

When the machine runs it will pull the obstruction into the line and then will release it when it shuts off. If it drifts far enough away it will run normally for awhile before it gets caught up again.

Next time the engine stumbles shut it down, disconnect the line from the filter and blow air back through it to the tank. If the problem clears this is the issue.

The ultimate fix is to drain the tank as much as possible and then try to clean out any debris you can see in the tank. Using a small diameter hose attached to a shop vac or a turkey baster should work. I also made a screen I inserted into the fuel tank fill to keep this from happening again. I think Bobcat/Kioti sells one that may fit your machine.

 

[thepumpguysc]

If u guys are having problems with your primer bulb, go to your local Yamaha Marine Center on ur way home and get a Yamaha primer bulb..
BEST on the market..

 

[Joel/ak]

Thanks guys. Alot of good options to check.

This weekend I'll start with new filter and check pressure.

 

[Joel/ak]

Update: I replaced the fuel filter and added a fuel additive and today it ran as advertised.
Old filter had maybe 15 hours on it but things fail..