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Old 05-09-2007, 10:47 AM
thistle327 thistle327 is offline
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How to increase RPM 18HP Intek

Can anyone tell me how to slightly increase the governed RPM of an Intek 18 (model #405777, type #0112-E1, code #010219YG). Runs 3610 no load, 3450 blades engaged, 3350 mowing. Engine is on a Bunton EstatePro 52 inch deck measured with Tiny-Tach.

BTW, while I know this mower isn't super heavy duty it is great so far for my use (1.5 acre lots of trees).

Thanks,

Steve
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Old 05-09-2007, 01:08 PM
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Restrorob Restrorob is offline
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There is a tang behind the throttle control plate that the governor spring hooks to. Bend this tang to stretch the spring tighter to up the RPM, But only bend a little at a time then check. I would suggest not going over 3600 under load and do not run wide open with no load (without blades engaged).
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Old 05-09-2007, 01:37 PM
thistle327 thistle327 is offline
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Thanks for your help. I'm only looking to increase the rpms closer to 3600 under load, never over.
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Old 05-09-2007, 04:36 PM
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Bill Kapaun Bill Kapaun is offline
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Steve-
I'd suggest doing this in SMALL steps.
It may be that under load, the engine will still drop down to 3350.

The torque curve is dropping off rather rapidly above 3000 RPM. It may be that the engine is going to slow down to the torque level that handles the load, no matter what the no load RPM is.
IF this is the case, a higher no load RPM can only have negative effects.
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