OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Walk Behind Lawn Mower Frames Victa Lawn Mower Frames vsx 160 carby mods

hi I have a victa razor mower with a vsx 160 two stroke eng, 2005 model.It has never throttled properly in my opinion since I have had it, It would rev too slow for cutting grass along with surging and idled to fast when you went to empty the catcher. upon searching the forums and info made available by bruce,I changed the diaphragm spring in the carby from the original red spring to a yellow spring part no cro 3643a. This will increase cutting rpm and make the idle a little slower.I did try a green spring but it reved too fast, parts are available from your victa dealer rgds graham

Graham,

Just a few questions regarding you machine:

1. Have you checked the 'O' ring on the starter, manifold and cylinder block to see if they have any rubber missing off them?

2. Have you checked the carby for any hair line cracks as I had on some years ago and it took me four attempts befor I found the crack?

Just check these first before we go any further.

hi bruce as the victa razor was new , it seemed that it was running much the same as other new vsx 160 victa two strokes,the standard vs160 eng throttles much better. I have not checked any o rings, carby seals etc, the mower starts first pull every time, the spark plug has a light tan colour on the white center electrode, plug is a ngk bpmr4a,since changing the diaphram spring it seems a lot better but i would like to see it idle much slower.rgds graham

Graham,

Even that it is new victa did have a problem with the grove in the casing on the block and they had to use an oversize 'O' ring.

They used some brass washers where the cam sits on the shaft. Part number CR03626A.

Have a look at that for now.

bruce could you be more precise on the parts i should check, i have searched for the power tourqe 160 eng but to no avail, also my complaint is some what the same as bryce, member # 1314 on the same mower. rgds graham

graham,

Have you had a look at the carby information on the bulletin board area Parts List and repair manual. You will find information on leaks that will be of some help.

I will also put up some information on the motor this week once I have scanned it in.

Sorry but it is taking longer than I thought to get the information up in that area.

bruce i have checked the starter o ring also manifold and cyl block o rings all were ok but replaced anyway , there does not appear to be any cracks in the carby plastic i could not detect any air leaks via induction etc. seemed a pity to pull it apart but nothing ventured nothing gained. rgds graham