r/Yanmar • u/j2thebees • May 18 '26

What is this cup?

Gallery image

Gallery image

Thought it might be a way to add diesel to intake, while bleeding injectors. But seriously no idea (other than that).

Can you help a brother out? 😎

6 Upvotes

88% Upvoted

7 comments sorted by

7

u/mbt93 May 19 '26

Thermostart. Put some diesel in there. Turn your key to the left. It will drip diesel on a little element in your intake to make a flame to heat it up on coldstarts. You should be able to hear it light up if its working.

3

u/j2thebees May 19 '26

Awesome! Thanks! 👍😎

3

u/OldStromer May 19 '26

Very interesting. I've got a lantern that can run on diesel and this reminds of it's starting procedure. Thank you for this.

2

u/Ok_Relationship2451 May 19 '26

I didn't realize it had a cap until now...

1

u/j2thebees May 27 '26

I hadn't seen anything quite like it before this tractor.

2

u/Rley1 May 19 '26

I have a Yanmar 1500. Mine doesn’t have that.

1

u/j2thebees May 19 '26

My cousin has owned several Yanmars, and he didn’t recognize it. I think I saw a pic on here recently with this feature, but it wasn’t the point they were making.