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Is there anyone else besides me who can no longer stand the engine shields vibrating and being noisy ? My tractor would be somewhat quiet if I could isolate those shields. Any suggestions ? Just not alot of clearance between the hood, and where the shields sit behind the grill area.
 

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Discussion Starter · #2 ·
Is there anyone else besides me who can no longer stand the engine shields vibrating and being noisy ? My tractor would be somewhat quiet if I could isolate those shields. Any suggestions ? Just not alot of clearance between the hood, and where the shields sit behind the grill area.
 

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I installed metal reinforced vinyl edging on the engine side panels it is McMaster-Carr item number 8451A722. Looks good and works great.
 

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Good morning guys,

I've been working on a 425. It's a '94, so the carb is vent solenoid.

Let's assume components (fuel/electrics/compression) are in spec.

One thing I did notice is there is supposed to be a fuel tank "check valve". My tank doesn't have the hose or check valve, not do I see any fittings to attach hoses. I checked the manual and the manual states the 425 with the carburetor vent solenoid should have no tank cap vent. My cap is vented (tiny hole in cap)

Would having a vented cap on a fuel system not supposed to have a vented cap, cause idle/engine problems?

Pg 3-10 from the manual.
 

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A vented cap is necessary if the tank doesn't have any other way to relieve the pressure differential that develops inside a closed fuel cell.

I have a vented cap on my '93 425. It also has a check valve vent hose assembly as well. Not sure how it ended up with both, but I've owned it for many years and, after some initial struggles with fueling issues, it's been very trouble-free.

I don't think the venting method is a problem, as long as there is some kind of vent. The system won't operate without a vent.
 

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Thanks Fred.

Interestingly, I have another 425 with the bottom 1 wire solenoid. That one runs very smooth. In fact when I acquired it the carb was in terrible condition. Cleaning is very simple.

I'm just thinking perhaps something is physically wrong with my vent solenoid carb. Buying used is a crapshoot and $300 for a new one....

Dave.
 

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Been there, done that. Used carbs are not often what is seen in the description. I've had several different types, most needed some work or parts replacement. The worst ones showed wear in areas that require major components, making repairs exceed the value.

The biggest headache is the price of genuine brand name parts. I'm old school and almost always use original equipment parts, except in places where it's not critical and easy to replace. Some of the stuff is just plain cost prohibitive on our older models.

I've been fortunate to find good replacements when needed, by being diligent in my search methods. It's not always fun, often very time consuming but is usually the best option.
 
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