Briggs & Stratton 190cc 6HP OHV Engine - MTD SPRINTO Tractor: Centrifugal Regulator & Throttle

Question

The engine of the MTD SPRINTO tractor - B&S 190cc 6HP OHV after removing and reinstalling the carburetor works only at maximum speed. My observations show that the centrifugal regulator does not move the throttle. Does bypassing this element by, for example, mounting the tendon instead of the...

jdubowski · Answer

Determine why he is not moving - something jammed, no movement transfer, etc.

audiofil9090 · Answer

The regulator cable does not resist when the engine is running, it is loose and it doesn't matter.

czyt · Answer

Maybe the engine speed control lever turned? It is supposed to resist and reduce gas at high revs.

audiofil9090 · Answer

The lever can hardly be turned, before it operated in the same position. Probably the reason lies rather inside the engine block because from there comes the regulator lever only what could have moved there? I would not want to recklessly start the engine, maybe there is no need.

wojtek1234321 · Answer

If this lever does not work, then most likely the engine speed regulator has failed. This cannot be checked except by dismantling the engine. Mostly it's similar to this: Driven by the engine camshaft. The second thing is whether all the springs are well connected to the throttle and the lever of the regulator and whether they are not too stretched and deformed during disassembly, because it is very important to maintain proper rotation and proper operation of the regulator.

audiofil9090 · Answer

In fact, there is only one spring there, but I decided that it doesn't matter if with the spring or without it, the regulator doesn't resist, doesn't try to close the damper, so it's broken - I think? I'm just surprised that it just stopped working. Or maybe it could be converted into an external regulator using a blast of air from a cooling fan?

wojtek1234321 · Answer

Perhaps during the disassembly of the carburettor there was some forceful adjustment of the regulator lever and this could lead to its damage. Added after 1 [minutes]: Some mower engines have it like that, but if I could convert, I don't know.

audiofil9090 · Answer

So now I have a dilemma whether to disassemble the engine or modify the regulator ... ech: /

jdubowski · Answer

Bring the regulator to efficiency - if the lever has been removed from the axle, it must be installed correctly.

audiofil9090 · Answer

The lever was not removed from the axle but unfastened from the carburetor side

Anonymous · Answer

It did not have to be removed at all, when carelessly detaching the rod from the carburetor, it turned on the axis of the regulator. You just need to set it correctly.
Give a picture then I'll tell you how to set it correctly.

jdubowski wrote:

Bring the regulator to efficiency - if the lever has been removed from the axle, it must be installed correctly.

A very revealing statement.

audiofil9090 · Answer

I can see that I finally got the answer from a professional and I am very happy about it. What exactly should I photograph? From the outside, it looks like this: As you can see in one of the pictures I did a small experiment and put on a plastic fan to attach the coil from an old mower, and after making a temporary connection, strangely started to regulate the speed so if I can't connect as it was, I have an alternative.

Anonymous · Answer

Release the regulator screw, hold the lever so that the throttle is fully open, turn the regulator axis counterclockwise until it stops and tighten the screw. Write about the effects.

audiofil9090 · Answer

It did not help, when the throttle was open the regulator axis was rotated maximally counter-clockwise, I still can't feel it because I can feel a clear resistance.

Briggs & Stratton 190cc 6HP OHV Engine - MTD SPRINTO Tractor: Centrifugal Regulator & Throttle

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