qtband
Well-known member
I have a Honda GX160 from a power washer and it hunts at full throttle. I think under the load of the pump, it would run ok. On the kart, it hunts. Any solution for this?
Hunting At Higher RPM
- Thread starter qtband
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denhammotors
Member
Is this kart geared very low? I would think the engine would do that if it doesn't have enough load on it at full throttle.
fowler
New member
Have u got a fuel filter on it?
Is the carb clean?
Is the carb clean?
qtband
Well-known member
Gearing is 6:1
No filter and the carb is clean. Runs great up to speed then it has trouble holding a stable speed. RPM's go up & down a little.
No filter and the carb is clean. Runs great up to speed then it has trouble holding a stable speed. RPM's go up & down a little.
Russ2251
AZUSA:Powered by LAWN-BOY
Diameter of tires?
qtband
Well-known member
It's not a gearing problem. It's something else.
Doc Sprocket
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That's possible, I've seen it. Could be a governor (mis)adjustment, too, air leak downstream of the carb, maybe a couple other things.
exenos
Project Nut
Any chance its just bouncing off the governor causing the surges?
qtband
Well-known member
Could you explain this please?
Your engine should not be doing this. Is it stock or have you modified it?
OzFab
Well-known member
When the governor kicks in, it forces the throttle closed, dropping RPM, Once the rpm drops the governor kicks out & revs start to climb again until the governor kicks back in & so on & so on...
I have the same problem with my GX but I'm not concerned coz the governor is going but, I think its a governor adjustment issue. My reasoning is: I put the carb & tank on another engine & the problem didn't exist...
Doc Sprocket
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All things being equal, it should not do this. FWIW- I would like to clarify governor operation. I have heard it described as "kicking in" or "engaging" or whatever. Technically,the governor system is always on and operating. Operation should be smooth and continuous, not erratic or jerky.
That said, "bouncing" is not always a big concern. Often, it can by caused by a slight governor misadjustment, weak spring, or sloppy linkage.
Gearing CAN be a contributing factor. If there is no load at high speed, (caused perhaps by low gearing) the symptoms of an above problem can occur.
That said, "bouncing" is not always a big concern. Often, it can by caused by a slight governor misadjustment, weak spring, or sloppy linkage.
Gearing CAN be a contributing factor. If there is no load at high speed, (caused perhaps by low gearing) the symptoms of an above problem can occur.
qtband
Well-known member
The engine is not modified.
I think it may be sloppy linkage or a weak spring. I'll get to it after school and see what I can come up with.
I think it may be sloppy linkage or a weak spring. I'll get to it after school and see what I can come up with.
qtband
Well-known member
TS was right. Weak spring. Shortened it a bit and no more hunting. Thanks everyone!
Doc Sprocket
*********
Glad you're sorted out!
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