Here is a link to a Tillotson HL63E carb for sale that can be used on several of the McCulloch chainsaws. (as mentioned above)
The Tillotson HL63D, E, and A can be used interchangeable and use same kit and can also be used in place of the 87D, but the 87 D cannot be used to replace the 63A, D, E,
because the 87D does not have a choke butterfly inside the carb.
I suspect it will work on a 250 but not sure. I know it will work on the 1-40 and 1-50 series of McCullochs saws. (I do not own a 250, but it appears to use the same carb set-up as the 1-40, 1-50 series saws)
https://www.ebay.com/itm/McCulloch-...809491?hash=item5b3fb45f93:g:Ip4AAOSwhpZZ6x2j
I've bought used and new Tillotson carbs for less than this $29) with careful shopping and not being in a hurry!
You have to be careful and not use over about 15-20 lbs of air pressure on the Tillotsons or you can blow out the welch plugs if direct injecting the air into the passages. (keep the air nozzle back away from the carb ho9les when using air)
The Tillotson HL63D, E, and A can be used interchangeable and use same kit and can also be used in place of the 87D, but the 87 D cannot be used to replace the 63A, D, E,
because the 87D does not have a choke butterfly inside the carb.
I suspect it will work on a 250 but not sure. I know it will work on the 1-40 and 1-50 series of McCullochs saws. (I do not own a 250, but it appears to use the same carb set-up as the 1-40, 1-50 series saws)
https://www.ebay.com/itm/McCulloch-...809491?hash=item5b3fb45f93:g:Ip4AAOSwhpZZ6x2j
I've bought used and new Tillotson carbs for less than this $29) with careful shopping and not being in a hurry!
You have to be careful and not use over about 15-20 lbs of air pressure on the Tillotsons or you can blow out the welch plugs if direct injecting the air into the passages. (keep the air nozzle back away from the carb ho9les when using air)