Good morning/evening team, I have been trying to sort out a Victa Model 5 125cc Utility mower that I was asked to initially do a carburettor clean, but when I started it, I found it is occasionally backfiring through the carburettor and, when giving it full throttle, the machine starts to die until it is backed off to about half throttle. I have disassembled the carburettor several times in case I missed something, but the slide carburettors are really basic, and I have now replaced all internal gaskets, including the two o-rings in the fuel tap, but it still backfires and dies when pushed to full throttle. I've read the instructions on setting the points (Gap stated as 0.027"), and also tried various positions for the timing with the magneto plate (said to be 1/8" before TDC), but to no avail. Last change was to move the plate to the opposite end of the adjustment slot, but it wouldn't start. The points also didn't seem to fully close, and appear to open far too soon compared to the instructions I've attached regarding timing, etc. Would appreciate some assistance or suggestions as it's not my mower and our local mower shop has ceased trading and is now closed. I've attached photos of the instructions I read for this style of motor I obtained from this site and an overhead photo view of electronics. Hope the information above is clear enough to allow assistance. Will check back in the morning. Thank you for any feedback. Regards. Daryl.
