I have an XL I wanted to adjust the carb on but I ran into something that has me curious. The carb adjustment screws are in the normal place under the choke lever I have no problem there. The low idle screw is a normal slot head screw but the high speed adjustment has only side on the screw head making it unable to be adjusted with a straight screwdriver. My question is, were these designed that way or did one side of the head of the screw break off?
Post by lesorubcheek on Jun 21, 2010 20:20:48 GMT -5
Is your XL one of the "newer" plastic bodied saws? Can't speak from experience cause the ones here are older, but wouldn't be surprised it was made like that to prevent altering by the user. Everyone knows that only a saw shop has people smart enough to adjust the hi jet on their saws (at least that's what the EPA seems to believe) so to comply, there were a myriad of special tools to fit such oddball fittings that were used. Wouldn't doubt that's the case with yours.
Or, half the head coulda just broke off also........
I have 2 xls. The older one is a mag case that does have the fixed jet carb. The second that I am working on is a plastic body but is also itself has quite a few years on it as Homelites website does not even list the UT # of the saw. The UT of this saw is a 10618-A. It has a plastic housing but the old toggle style on/off switch. This also has the third adjustment screw intended for the high jet adjustment, but as I said it has this strange style of screw on it (unless like I said one side of the screw broke off). I had to adjust it with a set of needle nose pliers to reach in and grab/turn the screw.
I also forgot. This xl has the old style air filter and oil pump with no primer bulb or chain brake. Except for the plastic case this saw is setup exactly the same as my mag case UT #104** Model. While it may be a little newer it is still the old style setup.
I looked through the IPLs I have for the XL, XL-2, and similar models and some do show both the High and Low screws but not enough detail to see the ends. Also, Vol 6 of the Homelite service manuals does state that later models had both mixture adjustment screws. Keep in mind that the XL-2, the first version of this little saw, came out in 1972 and there were several offspings. The Bandit and 190 are some of the later versions. I don't know what you mean my "old style" air filter. The original air filter was round with a couple of dimples and was used on many models. The Supers had a larger, more square filter. I have one IPL that does show a primer for fuel but I've never seen a saw with it. There were two type of oil systems. The later XL and Bandit used a pressuring oil tank that didn't work all that great. All the others have a diaphragm and piston design.
The filter design I have is the one you are referring to, round with a dimple on each side. From looking at some of the later models (with the plastic rocker on-off switch and primer bulb) seemed to have an almost diamond style air filter. There is a cage piece in with the dimple style filters. Is that cage piece used as a retainer to hold the filter in the housing or does this mount under the filter to keep it spaced for better airflow?
Thanks for this, MCS ( and for your reply to my recent XL-2 question ). I was puzzled by the blanked-off high speed jet adjustment on my mag-bodied XL-2 ( both my needles have slotted screws ) Not there yet with it, but getting there ! My idle ajustment screw was mashed at tip by over-tightening : I've done my best to re-shape it with partial successs. If I need to replace the carb will any HDC carb do ?