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Discussion Starter · #1 ·
When i bought my wizard lawn tractor back in 08 it drove fast and worked good. Now its just falling apart. It doesn't go nearly as fast as it used to and has problems getting over the slightest incline. i need it running good for the winter ahead. The carberator has been messed with a few times. Could that make the tractor drive slower than it used to. The transmission is fine, i checked that but i'm not sure on how to give the tractor more pushing power. what should i do???
 

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Is your drive belt slipping or maybe a pulley bearing going or freezing up? Unless you are dropping RPM's, I really doubt the carb is to blame. It has to be drive related.
 

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Discussion Starter · #5 ·
Is your drive belt slipping or maybe a pulley bearing going or freezing up? Unless you are dropping RPM's, I really doubt the carb is to blame. It has to be drive related.
Just replaced the drive belt because it snapped, all the pulleys are working good but i think its dropping rpms because the engine doesnt seem as powerful as it used to be. its not the transmission or as far as i know, took it off and examined it, every gear is working fine, nothing broken. could the screwed up carb be not giving it enough gas???
 

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Deere 330 Killer
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having incorrect carb calibration can really limit an engines performance. a good clean and tune of the carb would be a good thing to do
 

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Discussion Starter · #7 ·
having incorrect carb calibration can really limit an engines performance. a good clean and tune of the carb would be a good thing to do
i cleaned it a month ago and didnt really use it until about a week ago, i've been leveling land and clearing brush with my plow. i also noticed that when i took the muffler off, the exaust port near the valves was extremly black and there was like a lot of soot inside. i've never seen it before.
 

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Deere 330 Killer
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are you running a fuel filter? it sounds like you have grit in the cylinders. check the valve seats as well.
 

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Discussion Starter · #9 ·
are you running a fuel filter? it sounds like you have grit in the cylinders. check the valve seats as well.
I had grit a few months ago but i cleaned it out and changed the filter. i'm gonna check again and see whats up on the inside of the engine, maybe one of the valve seats is bent???
 

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Deere 330 Killer
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maybe one of the valve seats broke and got into the engine. i dont know your mechanical experience, but i would take it to a small engine mechanic, and have him tear into it
 

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Pull the spark plug and see if it's as sooty as the exhaust. Does the engine put out black smoke? If it does, it's running too rich, and that would reduce your power, as well as cause damage over time.
I'd check the easy stuff before tearing into the engine. Check your oil, too. Is the level up too high? That might indicate a leaking carb that's allowing gas to get into the oil. That will quickly destroy an engine.
 

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I'm a lot slower than I used to be too,
I think Fcubman has best suggestions thus far,
the condition of the spark plugs can be a wealth of information,
 

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Discussion Starter · #13 ·
maybe one of the valve seats broke and got into the engine. i dont know your mechanical experience, but i would take it to a small engine mechanic, and have him tear into it
oh i'm really good at fixing small engines, been doing it for years. i've taken this engine apart before to clean all the parts but that was about a year ago, i'm gonna take it apart and inspect everything.
 

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Discussion Starter · #14 ·
Pull the spark plug and see if it's as sooty as the exhaust. Does the engine put out black smoke? If it does, it's running too rich, and that would reduce your power, as well as cause damage over time.
I'd check the easy stuff before tearing into the engine. Check your oil, too. Is the level up too high? That might indicate a leaking carb that's allowing gas to get into the oil. That will quickly destroy an engine.
no it doesnt put out black smoke but i will check the spark plug and see how sooty it is.
 

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was it slow before the belt broke? If not maybe the new belt is just a bit too long. I've had mowers slow down until I replaced the old belt.
 

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Deere 330 Killer
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check the orientation of the belt too.. if its routed wrong, it will slip, thus making it slower
 
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