Mercruiser 170 electric choke

[scook]

Engine was very hard to start and wouldn’t idle down without dying. The shop says the electric choke is getting power but not working so they set it all the way open and I should be able to pump it a couple of times to start, then run it up a couple of times and I’d should idle OK. They say over $400 parts & labor to fix.

Questions:
1) Is it a simple exchange of parts to fix?
2) Recommendations for online suppliers (or Spare, what do you how much to mail me the part)?
3) Other comments or ideas?

Thanks for the help.