Hi Jeff, too much info happened here at the moment so I will address the 600 issue with you. I have 2 of them here and I am convinced these slashers are not suited to the PT's for some reason. I have fitted 4 motors to these and they do not work well. The motors run fine on a standard base. I'm at the point of contemplating fitting F/C's on them. The bloke who owns one of them was on about fitting a Suzuki on his but I had told him I thought they might be too small cc wise, he wasn't listening but I think I convinced him yesterday when I told him they were a Chinese copy. He is trying to find a Honda for it now. At least I have a drawing here somewhere of the adapter plate that I need to make to fit an F/C on the later base.
To be fair I have gone through over 100 of the viton tipped needles, some work fine and never have a problem, then some cause issues and when this happens I can go through as many as 4 primer caps and needles before I get a combination that works and that mower settles down.These issues always arise usually in the first week or so so I do not believe oil is the issue but it could be if the mower was left to sit for many months.
Hi Max, I will make up one of those needles and see if it works, there is another 5 PT's I put in the front garage that I haven't looked at yet. Probably a good starting point With the needles, even with the viton tipped ones I have had to shorten a few of them by about half a mm. This must be because the seat height (depth) must vary slightly in the primer cap. When the primer cap is fitted in the body, the float is unable to drop enough to allow the needle to drop away from the seat. This is also compounded by the fact the viton tip will swell a fraction after a day in the fuel and this combined with the limited float travel it can be enough to stop the fuel flow. Anyway I will go and work on a Briggs some bloke dropped off here last night
