OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Late Mode Victa 2 Stroke will not restart when Hot

So what is the problem Harry, if you can start it with 2 pulls when it is hot just keep doing what it wants to do. It is a 2 stroke, don't overthink it

Hi NormK,

Thanks for the reply.

what about it not starting when cold , in the cold position, it seems to only start after a few pulls and being placed in the run position, would this be detrimental or not.

Start it where it wants to start Harry , it is a 2 stroke they can be temperamental to start but the only way you can damage one is if you straight fuel them

Thanks NormK,


I will see what it does for the next few months.

And I might do what maxwestern recommended and bend the throttle cable and piston rings, but for now , I just leave it as is and monitor Compression after using it few a few hours when doing the lawns.


Thanks to all.

If you feel like it put a set of rings in the other motor and then you have spare engine sitting on the shelf ready to go if you ever need it

Hi NormK,

Was thinking about it also.

I might order a set, use the current motor a few more times making sure its Compression doesn't move from 50-55-60PSI , as it did drop the first time to 45 PSI the first time I put it together on the newer base.

Thanks

G'day Harry

If the vacuum is not connected to the carby diaphragm the governor won't work ,I wouldn't worry about it
on an old 160 2 stroke as they usually have enough power anyway.

I can't find a Victa factory lowest compression in psi recommendation to replace the rings ,but this
is the one a shop has already said is too low and I recommended about 70 psi cold as the lowest I'd use,
Honda 4 strokes recommend 85 psi cold as the lowest .

Low comp can mean hard starting and easily stalled under load.

Victa give a maximum used piston ring gap at 16 thou and with new rings the mimimum ring gap is 8 thou.

A Victa 160 full crank motor has it's maximum torque figure at 2000 rpm ,I haven't looked at Power torque
figures but it just shows you don't need to scream the motor out normally to cut grass unless compression is down.

I always start the Power torque mower on full throttle and back it off when it starts.

Having a Vacuum Control Button without a hole won't affect the way it starts.

I'd put rings in this one just because it's down a fair bit ,other 2 stroke are recommended for a rebore
with 8 thou bore wear from standard.

A full crank 160 victa is 8 thou clearance maximum between the piston skirt and bore before
needing a rebore so I'd use that figure for the Power torque motor.

To check the ring gaps you push the rings evenly down the bore from the top by about an inch.

You can spend $30. on this one or get another mower or just use it until it won't go any more,
up to you.

Cheers
Max.

Hi Max,

Thanks again for all the info. Very useful.

Good to know about starting on full throttle, and that the Vacuum Control Button doesn't need to have a hole.

I will buy a Standard Ring Kit and use it on the 60 PSI Motor.

I understand the original is down to 45PSI and really needs a rebore. So I might Google how to do a rebore on a 2 Stroke Victa and maybe give it a try.


I will post when I have ordered and installed the Standard Piston Ring Kit and advise what PSI I get on the 60 PSI motor.

Thanks

Harry

Hi All,

Sorry for taking so long to get back.

With work commitments, going overseas for a while. I have just now had a chance to get back to the Lawn mower and replace the Original Piston Rings with a new Standard Ring Kit and use it on the 60 PSI motor.

I found that the Piston had a few grooves where gravity pushes it down.

Unfortunately I didn't buy a new Piston , just the Piston Ring Kit.

I followed YouTube Videos and replaced the Piston Rings.

And reinstalled the Piston and Conrod, I reused the Gasket as it seem in good condition.


All I can say is that I did not get an increase in Compression.

Compression has remained the same. It starts okay after priming and a few pulls.


It starts pretty much straight away if I turn it off for a minute and then restart it.


I reused it's original Carby with the other Faulty(45PSI) Motor's Throttle lever/Cable/Hose , Fuel Tank and Covers.

After replacing the above stuff and priming again, it started after a few pulls also.


For now , I will let it go and see if I can get it started in a few days. I might need to prime it a few times and start it on full throttle for it to start , but I am happy with that as i have been advised it is not a issue.

If I remember I will post if I need advice.


With the Faulty 45PSi motor , I am keeping for parts only.

Also the funny thing is, if you pay attention there are people throwing out Hard Rubbish that's worth taking. I have been able to score 2 other Late Model 2 Strokes a Victa VSZ160 Razor and a Victa Bronco.

So I am pretty much all good for 2 Strokes. All the Victa Bronco needed was a clean, and the Pull Cord Return Spring Re-bent into position a new Pull cord and Handle installed. It started after priming and on the second pull.

I have not tried the VSZ160 Razor.


Thanks to everyone for their help.

Harry

That is good Harry, people hate them because they can be problematic and 90% of the problems relate to the float needle. Once you get that sorted they can be fairly reliable

Hi NormK,

Correct, that's why I much prefer to fix an older Lawn Mower than buy a new one.

I did for the first time see an electric lawn mower in hard rubbish. All I can say I didn't stop.

I feel people think that Electric Lawn Mowers are better than Petrol, but like everything these days they aren't built to last and who knows if they last as long as a Victa 2 Stroke or an older B&S Quantum 4 Stroke Lawn Mower.

Harry, no way will an electric mower last anywhere near as long as an old Victa.. And if the rings wear no big deal chuck another set in

My VSX160 had a similar issue - turned out to be a dodgy coil. Took it to a (sadly now closed) Mower Shop in Sydney who talked about having to pull apart a spare PowerTorque he had laying around to fix mine. Given we can get carburettors, and blades etc still fit, I'm concerned that when the coil goes next time, I'll have to scrap the mower...

Never fear AMP, unusual for a PT coil to fail but I would have over a hundred sitting here