Split Petcock Vacuum Hose

[fishfarm]

In the process of re-doing my carbs, I happened to notice the vacuum hose was split where it attaches to the carb. I presume this does not help.

[JEEPRUSTY]

man that really sucks.

Get a new one.

no sure of the ID but any line rigid enough to be used as a vacumm line should suffice.

[BassCliff]

Hi,

From "Where Do These Hoses Go?":


The vacuum fitting is 6mm. Some 1/4" hose is too loose (1/4" = 6.35mm), but some brands are a little tighter and work fine. (NOTE: I found some 7/32" hose at the local Ace Hardware store that worked perfectly.)


Thank you for your indulgence,

BassCliff

[fishfarm]

Thanks, good information. I was somewhat surprised these connections did not have clamps. I may use some spare wire (I have even been known to use bread-tie wire on small hoses ) to better secure this hose.

[JEEPRUSTY]

eww ties..... the fitment of the hose is such that it barely comes off when new. No ties needed. The things swell up and soften over time.

Get Thee a new one. Or just cut out the split part if you have enough slack.

[fishfarm]

Well, I do strip the cover off of them first...usually

I will have to replace it, not enough slack.

[sedelen]

You may not realize it, but you probably solved yourself a very big headache stumbling on that split line. I had a vacuum leak in my No. 2
Cylinder and found a small tube sticking out of the No. 2 sync port. Made a big difference in it running.

[fishfarm]

You may not realize it, but you probably solved yourself a very big headache stumbling on that split line. I had a vacuum leak in my No. 2
Cylinder and found a small tube sticking out of the No. 2 sync port. Made a big difference in it running.

Thanks. I was wondering how much of a difference that could make. I've suspected my problem to be primarily air leakage, but the new intake tubes and o-rings improved but did not solve the condition. The first 3 carbs I've stripped are in good condition, no blockages and the o-rings seem supple. I'm going to clean and replace them all anyway. Maybe this split vacuum tube will be the answer. We'll see this week.

[robertbarr]

man that really sucks.

Umm -- yeah, vacuum leaks always kinda suck...

[SqDancerLynn1]

With a leaky vacuum line you will never be able to sync the carbs

[bonanzadave]

Make sure the new hoses (might as well replace the fuel line too) are not too long and kink when you put the tank back on. BTDT .

Edit: Nothing wrong with a clamp. Make sure you have the tool to remove the clamp in your on-board tool kit. Just in case....

[cowboyup3371]

Hi,

The vacuum fitting is 6mm. Some 1/4" hose is too loose (1/4" = 6.35mm), but some brands are a little tighter and work fine. (NOTE: I found some 7/32" hose at the local Ace Hardware store that worked perfectly.)

Hey Cliff, is this measurement the same across the board? I need to replace my vacuum line on the 550T as well.

Thanks.

[fishfarm]

Make sure the new hoses (might as well replace the fuel line too) are not too long and kink when you put the tank back on. BTDT .

Edit: Nothing wrong with a clamp. Make sure you have the tool to remove the clamp in your on-board tool kit. Just in case....

Thanks, I had planned to replace the fuel hose while I had them both off and easy to get to.

I guess the question "to clamp or not to clamp" will depend on how well the new hose fits.