OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Is it worth it? Mayfair

hey ,
ok so .. once you get it running does it run on its own fuel from the carby or does it just run until the fuel you give it down the plug hole runs out ? .
did you give the jet a good blow out ?
the governor set up is hard to put into words but basically if you gently turn the vane left and right without forcing it past where it stops , the butterfly in the carby bore should open and shut if it does this it should be okay.
sounds like the little rod that sits in the cylinder for the muffler clip is missing.

When I got it started with the Start ya Bastard it ran until I turned the fuel tap off. When I started it by putting it down the plug hole it only ran for a few seconds. I gave the carby a decent clean out with carby cleaner and then used the air-compressor to clean all the gunk out. I may have bent the throttle cable a little when I tried to re-install it after the carby clean, not easy to re-install.
Can't see any little rod on the cylinder so assume that it's missing, thanks for pointing that out.

Had another look at the throttle setup on this mower, the labels indicating slow to fast on the air filter assembly have worn away. I assumed that the throttle switch was like the later victas where when the switch was closer to the operator it was the cold start/slow setting, on the Mayfair it appears to be the other way.

correct run is up stop is down ,
sounds like your starting problem is now just lack of restriction with the hose

Thanks for confirming the order of the throttle.
I still havent got the carby sorted. I turn the fuel tap on, hold the tickler until I can see some fuel from the hole below the tickler. Then no matter what i set the throttle on, it doesnt start. Then i put some petrol into the spark plug hole and it runs for approx 45 secs obviously burning the petrol that's in the system as i had shut the fuel tap off as soon as it fired up. Turned the fuel tap off because i cannot get the kill switch to work on this mower. I've given the carby a good clean, any suggestions?

I find that very often, the journey is the reward.
Carbies are a bit like magic sometimes.
It runs, so mechanically it's cool. All that's left is fuel and air delivery.
Start from the beginning and check all of the seals first. An air leak can be the horror of hard to diagnose issues. If there's juice in the bowl then you have that. I really hate those throttle down the intake system as I can't diagnose with a bit of wire on the throttle and a Pod on a hose air input.
Do a full carby kit. Seals needle etc and then test, the kits are cheap and you can do it on dining room table while watching TV if everything is clean.

Now become an airbender (no, not Adrian Newey) and check all air paths.

If you think a Victa is tough you should try triple 45 Webers. They'll make you cry.

That's my 2 bobs worth.

hey there brycevr
this mower was a hard nut to crack, the discussion continues under "wanted" g3 carby,
tiger found the rings to be unserviceable so the top end is having an overhaul .

I agree that sometimes the journey is the reward, soon I'll be able to tell you whether it was worth it.

Tried this mower again today, it had been starting ok but i hadnt run it for more than a few minutes. Today it ran for about 5 mins and then i heard popping sounds, a bit of spluttering and the mower came to a stop. Despite a few attempts i could not get it started again, it has spark and petrol is getting through but it feels like it has lost compression. I changed the head gasket and the crankcase gasket, also replaced the piston rings. I'd have to say the mower was running a little rough but it was running. Had a look at the piston and it looks ok. I thought i flooded the engine but i ran the air compressor through the spark plug hole and waited an hour but still no start. Any suggestions about what to do next?

sounds like the timing is out

Mitch, but it started ok, how does a mower lose its timing? I can see why you might say that though if everything else is right.

hey again .
just wondering did you ever get around to doing the points and condenser ? , sometimes the spring steel goes limp and the points start to flutter causes erratic running and impossible to restart when its hot.

i honestly cant think what we haven't covered now haha.

Hey Mitch, did the points and condenser before, guess it's time to take the flywheel off again. Had enough of this mower, may come down to your neck of the woods and give it to you to work on.

Don't give up on it yet

The timing had become misadjusted so i corrected it but it still will not start.

I did replace both gaskets, is there a quick way to tell whether the head gasket or the crank gasket has gone?

Just remove decompressor and block hole and turn engine over if therer is two resistances
The hard resistance is cyl comp and the softer one is crankcase.
is the plug still coming out wet ? The only thing i can think of is that the jet may suit 160cc not 125cc everything else has been covered

When i went to look at the decompressor, i noticed there was oil/petrol on the decompressor thread, i replaced it with an old spark plug, it feels easier to pull the cord than a couple of weeks ago. Plug is wet but not damp, it feels like the compression has weakened but i cant see where.

Its normal for it to free up a bit . and there being fuel in the cyl will make it turn easyer
you haven't had your start ya bastard out again

That victa utility you have just bought is it a 125cc ?
Try the carby off it on the mayfair to rule out the jet