OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Engines Questions On Victa Two Stroke Engines Victa Corsair submarine

The next challenge in line with my family's mowers is a Victa Corsair which belonged to my mother-in-law and apparently was caught in a flash flood in the backyard shed last winter. During a recent clean-out she was going to throw it so I thought I'd grab it for some spares. Anyway, looked at it yesterday and the cutting disc appeared locked solid when trying to turn it by hand. I removed the spark-plug and sprayed in WD40 and gently worked it back and forth until it
came free and felt quite smooth to turn. Flushed the fuel and replaced. Removed carby primer plate and cleaned out. Checked the plug and regapped. Cleaned and WD40'd the recoil starter. Added fresh fuel and tried to start. Took ages to start due to WD40 and oily residue gunking the plug but eventually after pulling and cleaning the plug many times, it fired up and I left to run for 15 minutes. Mowed the back lawn and shut-off and restarted a few times. Tried again this morning and started first try. It seems to be running a little rougher than I expected but I'm not familiar with these mowers. Also on cold start today didn't get off roughish slow run for a minute or so and then ran at cutting speed which doesn't seem particularly high compared to a powertorque which I'm more familiar with. Question is do I just keep using as is or should I be looking to go in further. I thought maybe bearings might need to be changed if water got in but I'm not familiar with how to strip these motors (125cc ?)down. I suppose if water had made its way in it would only be through the muffler?What do you think? Should I be looking further at this point?

Hi sawain1, I guess it all depends on the position of the piston when the machine was inundated..... ie. if the piston was covering the ports, possibly no water got to the bottom end, so the bearings would be fine.
Have you noticed any unusual noises or knocking on idle?
Re the rough running...have you replaced the starter 'O' ring?

G'day Daryl,
Not familiar with this mower so don't really know what is normal or not. Did have another quick look and noticed the motor was a little loose on the chassis. I think the mother-in-law took it to a mower shop and was told it was dead at some stage so they may have mucked around a bit. Once I re-tighten everything I'll have a good listen which may be hard as it is pretty loud as the muffler probably needs to be changed. Haven't changed the 'O' ring. Its different from the powertorque (half crank v Full Crank?) so not quite sure how to tackle it.

Just subscribed to the manuals section of this site. Lots of information to digest. Being an earlier model Victa Corsair I just need to work out which motor it has.

sounds like a 160cc full crank motor to me, let us know if you need any parts you cant get new.

Hi Joe.

Thanks for the offer of an alternate parts source. I think you're right re: full crank 160cc. I'm still not sure if I should be brave and pull it right down or just go further with a full carby pull-down and the manual shows it must have points under the flywheel I think? Don't have an oxy torch to heat it as suggested in the manual for removal but wonder if levering under the flywheel and tapping on opposite side with a hammer like shown in one of the videos might work. Seems like it would be easy to damage it?

You need a flywheel puller for the flywheel, some people get away with using levers, etc.

Quite often victa flywheel pullers come up cheap on eBay,

Hi Joe and others this might interest you for removing the flywheels it is located HERE.

Thanks for the suggestion guys. I'll look at getting a flywheel puller as there are a couple other projects waiting in the wings also. It would be nice to have a proper workspace and tools to tackle them but not the case at the moment.