OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Victa Lawn Mower Frames Victa Mustang problem

The mower had been working fine until recently when after about 30 mins it would lose power and start to cut out but then it would hunt for a while but eventually it would die, mind you it would start straight away again but would go thru same procedure and die very quickly.
I have done the following:
1.Replaced the fuel
2.Replaced air filter
3.Had carby serviced at mower shop
4.Replaced rings
5.Overhauled decompressor
I have been told that it is important the two crankcase seals are
sealing correctly as they are some how used in creating the pressure for the decompressor to operate. (Not sure if this is correct)
I don't know the exact date of manufacture but it is a series 80 mustang with a black plastic carby.

squareye,

First thing before doing all this check bearing wear by holding the blade plate and seeing if you have any movement.

If you have movement then don't bother with the list as you will have to replace bearings first.

1. I would check the fuel flow from the tank to the carby.

2. Check vent hole in petrol tank cap is clear.

If fuel flow is slow (1) then check (2) if still slow replace fuel tap.

Then if you still have the same problem then check this.

1. Check to see if the carby mounting block has movement. If so tighten up the two screws.

Test again and if the problem is still the same check this.

1. Check 'O' ring on neck (replace this one if damaged)and one that goes into cylinder block (replace this one even if not damaged) if they have any damage replace and test again.

Then if problem is still the same do this.

1. Remove starter assy and check 'O'ring for damage but you must replace the 'O' ring and reassemble.


Hope that this is of some help.

Hi Bruce,
Thank you for such a prompt answer, I shall check all the above and get back to you with the results ASAP.
Gary.

Hi Bruce,
Well I got to step one and found the problem, filter inside petrol tank clogged. Cleaned and problem solved. I have learnt a lot thru this exercise and I now have a mower working like a dream. I shall keep your check list for future reference.
Thank you for saving me a lot of time and money...worth your weight in gold.
Gary.

squareye,

Glad that we could be of some help.