texsam wrote on 05/15/09 at 16:31:51:where can i find a larger pilot jet i have 52.5 and it runs best 3 1/4 turns out so i think i need to go 1 size up but i don't know where to look i have an 06 s40
Your local dealer
should have them available. If not then beat them thouroughly about the head and shoulders, then politely apologize for the slight over reaction to
their lack of customer support and then let your fingers do the walking through the yellow pages to see if another local independent shop has a jet assortment. If not available locally then go online; their are many parts suppliers listed in this tech section.
I am away from home and will not be back for 2 weeks or so, otherwise I would just send you one.
Keep after it, someone has one.
**There is one other possible option depending on how far you are willing to go. If you have a set of the tiny diamond files, usually 8-10 of assorted shapes included, can be had for very low $ at Harbor Freight or Northern Tool stores; one of the files in the set is round and very pointed and the tip of that file may be used to open the brass pilot jet hole. It must be done
gently and carefully lest you open it too far and find yourself in a
too rich situation. The brass is soft and files off very easily, so when inserting the point of the file into the end of the jet you just very lightly turn/twist the file with the fingers back and forth a couple of times; just enough to remove a hair of metal. Install jet back in carb and test run & readjust the pilot screw. (If you do this you might as well reset the pilot screw back to a 1.5 turn out position to give you a new starting point).
I find it a fun thing to do, just don't file the first time so much that you can really see metal on the point of the file, because if you can easily see the brass on the file the first time then you have likely gone too far already... I know about that one. The first time I tried it I think I went up 2 or 3 jet sizes, but I was much to heavy handed and had turned the file probably 8-10 times until I could actually
see that the hole was bigger. That was a mistake. Working gently and lightly will avoid that. It is much better to go by touch, you can feel the file contact the brass hole and a couple of gentle turns is enough for each test step.
It is fun stuff.