OutdoorKing Repair Forum Forums Restoring, Customising and Modifying Victa Walk-Behind Rotary Mowers Victa Mustang 160cc powerplus

Thanks Deejay, The paint i get from a little paint shop in my town they only sell paint so i think a paint shop would be the best place to try and get that paint...one thing with this paint it takes a few hrs to touch dry...

Im getting there its starting to look like a mower again...

Hi guys im done with the porting...I worked all the ports over for more flow, and worked the transfer ports to flow more to the back of the cylinder..Its only mild porting just to try and get a little more flow and better mix of air and fuel, might work just have to see how it goes...cheers

With the height adjustment bar, axles an wheels are they all new??

Love that green, I had a car that colour once gut with a gold pearl. Cant wait to see this one finished

they look as though they may be refurbished..

G'day nathan,I just clean and painted them no new parts..And the wheels i just cleaned them up, one or two are off it the rest I found in my parts bin....

Not long now and it will be a runner look out haha...here are a few pics and one of the exhaust port i forgot to post when i put the pics of the porting up..Just one thing for the guys that dont know the powerplus engine has a high flow muffler, I dont know if they would run very good with just a stock muffler...Cheers

Good stuff.

Be interested to hear back how the port work works.


Not sure it will amount to a hell of a lot without a jetting change.

Yes your right there to port a two stroke engine you realy have to know how to jet one..With the work Ive done on this one id say stock jetting will be fine but if not i will mod the main jet for more fuel..if you where to port one in a bigger way and not tune it with jetting it would be seized in no time...The biggest restriction on a mower that ive seen is the air box they let stuff all air in and I think its more a safty thing to stop it from ever running away with hi revs,and also a big restriction is in the fuel system the carb can only get what the pin hole of a feed will let it, also a safty thing id say to stop it ever getting a little to rev happy and running away...With this mower i hope to have picked some torque up not looking for more revs..Cheers

G'day Chris, Im always cleaning and painting mowers, but not even close to your level, what a great project. It is a credit to you.

I am interested in the porting you have done.

Any info you could put up about the way you have done it would be much appreciated.
Looks like a golfball inside the intake.
Is the aim to try and get better flow by taking the imperfection out of the casting in the block?
Thanks from Mark

Chris, if you look about for a later model Victa with a straight intake, it should have a bigger jet in it.

The 125 had a circle in the face of the jet.
The 160 is plain on the face.
The straight inlet jet has two circles on the face.

These will only work in a LM carb. LM jet will not work in a G4 carb. Had a mower in the shed early in the week that was over revving to the moon, worked out that it had a G4 carb with LM internals and jet. Swapped it all into a LM body and it was fine, better than a bought one.

If you have a G4 carb (which it probably does) you will need to have a look in the forum for the jetting info for the twin. It uses a bigger jet i think.


I want to do a hop up on the full crank to go in a little gokart. I figure it will rev harder and be a bit more forgiving with being over revved due to the design. Just not real sure with how to carb it. If i should switch to a motorbike style carb, I really would like to to be able to rev up and down freely. Plastic carb will do that but it will wear out eventually.

G'day mark....Well with the porting Ive done on the inlet the more imperfections the better Ive added more with the golfball thing they call them turbulators, Google How does a golfball fly and also (The Secret of Golf Balls Revealed) on youtube and you will see what Im doing with that one,its not new they have been doing it for years on race cars and bikes...I will add more about the porting Ive done on this mower later, and by no means am I a pro at porting I just have a go....here are a few pics of an inlet on a Stihl chainsaw of mine with the same thing as im trying to do, but yes true they do it a little better haha.....cheers Chris

Thanks bob very interesting I will have to have a look at my carbs (I have a few) to see what jets they have.....To hop up a full crank for a gokart top of the list for carbs would be a Mikuni but they do cost big bucks but you can buy any jets you like sky's the limit with a Mikuni, It dont matter how far you want to go even 2in flames out the exhaust! it would be a walk in the park for a Mikuni carby haha....

ok back to where im up to with the Mustang ,I could not help myself it now has a refurbished catcher lol...

Thanks for that info on porting & pic's, I had a look at the golf ball theory, it is new to me, it is very interesting, Cheers

All done cant wait to try it out, came up good as new am very happy with it.. almost to good to mow with haha..cheers Chris

sweet looking thing chris , you gunna use it too ? great job

Thanks and yep im going to use it as my main mower to mow my yard,it will be good to see if my work has picked up a little more power when I get it in some thick hard going weeds and grass....

goodo , just dont scratch it !!!