On my echo srm-2100 what length should the 3 lines be?

Jack, Check the attached links for trimmer carb. tuning,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
How to Tune Up an Echo Trimmer
http://www.echo-usa.com/getattachment/e8f287f6-0f5c-4f36-b0fa-ea8fa4a550b9/SRM2400241025012501S2510es_120194
echo srm 2100 weed eater

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Echo String Timmer/Weed Eater Model SRM-225 Won't ...

? 2:50
www.youtube.com/watch?v=uFN82KDj3a8
Nov 1, 2013 - Uploaded by mountainbikekayak So this is Part I of showing it want start but adding prime it wants to. Part II will show replacing the fuel filter did not fix it and then replacing the ...

no not fly wheel maybe coil if not sparking check switch fist is on for sure or bad plug coil expessive try squrying some starting fluid in the carb check compression has to be above 90lb to start check and see if carbon has block exhaust port do all this first

If it doesn't turn over when you pull the rope it could be in the starter assembly or the flywheel where the starter pawls engage it. If it turns over then you need to check for fuel, spark, air and compression.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/kelly_69a0cf1b13789df1

if there's a primer just hook the lines up. when priming if the gas is going back into the tank then its correct. if not then swap the lines.

i prime the primer bulb but no gas fills the bulb

Check Your exhaust port.. not the muffler itself the actual port. More than likely carbon and Soot has built up clogging the port significantly. It commonly does this after a few to three years of use. Usually caused by to much two cycle oil added to the gas and just carbons debris building up from combustion.

Hope this helps because it sure helped me ????????????

Check the fuel lines for cracks/breaks. If they are o.k., then:

You will need to disassemble the carburetor and spray with carb.cleaner. Make sure the small screen is free of debris.(Should be able to see daylight through it.)

Use a Den Tek Brush, (http://www.drugstore.com/products/prod.asp?pid=165357&catid=1152),to clean the small portals in carb. These portals can become blocked. Reassemble and start.

If the carb. parts are more than 4 years old, you may have to replace them.

If you need further assistance, just let me know.

Jim

Go to www.echo-usa.com/pdf/documentation/SRM40005000edi_110107.pdf

Vacuum test the fuel line and check the fuel filter.
The fuel line could be cracked.