Throttle stuck wide open-Governor issues

Cadzilla · Mar 10, 2013

Kawasaki FH 430V engine.

This has happened before and I have had it repaired or fixed but what causes this?

The engine wants to go to max rpm with no throttle control. It will go into choke mode but there is no throttle response. Just full speed ahead.

Is there anything any of you fellas can tell me about this? I have the airbox and backing plate completely off, have cleaned all and lubed the governor mechanism under the throttle plate.

http://www.nashuapower.com/OemParts...FH430V-BS12_4_Stroke_Engine_FH430V/CONTROL-EQUIPMENT/FH430V-BS12/99907-27080070

Restrorob · Mar 10, 2013

Check the governor adjustment, The arm could have slipped on the shaft.....

Cadzilla · Mar 10, 2013

Thank you. I will check that out. Unfortunately the machine this is on makes it difficult to access easily.

Should I be able to move the governor arm without loosening the shaft nut? It does not move currently.

Restrorob · Mar 10, 2013

Cadzilla said:
Should I be able to move the governor arm without loosening the shaft nut? It does not move currently.

No, It shouldn't move without loosening the nut..... Another thing your doing is tightening any wear clearance on the inside between the governor arm/flag and friction plate.....

Cadzilla · Mar 10, 2013

Well I am going to get under the machine later on Rob. You've been a big help. Just see if I am capable of getting this dialed in.

I'll post back with results and or more inquiries.

Thank you Rob.

ReRide · Mar 18, 2013

Have you figured it out, was it a broken spring? or unhooked linkage?

Throttle stuck wide open-Governor issues

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