Oring part number

[Dnadrilling]

Looking for oring part number for stock carbs, I've been battling a flooding issue which got better when I raised the clip to the top, after hours of research and working on sled I think orings in carb are causing issue, right now it starts and runs but falls on its face after half throttle, can get it to open up on stand but not while riding
Rebuilt with crank seals
New coil, New carb boots, New needle n seats, New fuel pump

[mswyka]

Can you tell us the model and year of the sled?

Thank you

[Dnadrilling]

Sorry,79  invader 440

[mswyka]

The A2 (79) Invader carbs are marked 36/72

I don't have a parts list for 79, but the 1980 carbs are also marked 36/72 and their part number is:  16001-3518

The sled will not run well above idle if the "O" ring is not sealing properly.

[Interceptor398]

I have used these.  I think I got them from Grainger?

https://www.grainger.com/search/hardware/o-rings-and-o-ring-kits/o-rings?attrs=Dash+Number%7C007&filters=attrs&searchQuery=75+viton+o+ring&sst=4&tv_optin=true

[Interceptor398]

PM me your address and I will put a couple in an envelope for you.