What is your 2100 doing? Maybe it just needs rings. I personlly would fix it.
+1. Glad to see you've fixed the 2100. Aftermarket fuel hoses and other parts can be found very cheaply. A guy over my way sells me stuff for my 288 which fits the 2101 I have. A fuel hose is the equivalent of US$4, same for a fuel filter.
If I were you, I'd block the carb governor off with a welch plug from a carb kit. The 1100, 2100 and 2101 have a spring and ball bearing governor which wears out and then you can never get the saw to run right. Other people on this site told me to do it to my 2101, and it really woke the old girl up. I was finally able to tune the carb properly, compression came up from 150psi to 165psi and the saw is just so much nicer to use, with no adverse effects.
To get at the governor, you remove the choke plate then carefully remove the choke spindle, watching for the detent spring and ball which can pop out unexpectedly. On the right-hand side of the carb, beside the choke spindle hole, you'll see a brass plug screwed into the side of the carb, normally with a dot of paint around the threads. This is the governor. Unscrew it, pop in the welch plug then screw the governor back in. Replace the choke spindle and choke plate. You will be able to adjust the carb like a normal saw i.e. screw jet needles in till the stop, then back off 1 turn. Then fine-tune the carb once the saw is warmed up. You'll be amazed at the difference.
Good luck. You've got a great saw there.