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ChadS
06-26-2005 12:10:21
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Re: Question for chads? in reply to bwc, 06-26-2005 11:32:30
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It could be carb, or the ignition. Usually the electronic kit helps starting and overall runability, anyone who has done this can tell a difference. I built a 450 that was a hard starting engine, it had points, and a 12v coil, but, it was a low voltage coil, you could jump the resistor, and it fired right up every time. I put an accel super stock coil on it, no resistor and it solved the problem. But, that was a differnt tractor too,,,, Carb,,,, Need to know how big that venturi was bored out to. the offset kit engines, like the #29-33 ventrui. it does take a bit bigger venturi. Which carb bowl are you running, and how big did you go with the jets? usually on a stutter, or hesitation with no load, its running lean, if its rich, it will bellow out smoke, and foul up plugs. Did you have a look at the plugs after the engine was under a load? run it around with the brakes on, if you dont have a dyno close by, warm it up, and work the engine, do that for 30 seconds or more, shut it down asap, and pull out the plugs, light color, whitish, or very very lite brown, is lean, a nice cocoa brown is perfect, a darker color plug, or very black, suited up, means too much fuel. Can you back the main load adjustment out all the way, and make it run very rich, smoke black? If not, you may need to go a bit bigger on the jetting, or, if you can, you may need yet a bigger venturi. Let me know what you did to yours, email is open too. Chads
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