Remember to sniff your oil fill hole, if the vac petcock was putting gas down the vac tube there is an outside chance it made it into the sump ....  in which case your wife is due an oil change.

Japanese made parts were pretty good,  can't say that so much for the Chinese made parts.


=============


Now we got some stealership service tech guys saying they expect them vac petcocks to last about 10 years?  

So Suzuki knows all about this issue -- I find that fascinating.

A quick question for ziggy. Did you notice that the engine seemed to run a little richer after the change?
I think I will have to back the enrichment screw off a bit. I have not changed anything for two weeks after changing the petcock, and it might just be my imagination, but it seems richer.
I'm wondering if this might be related to a funky vacuum in the old petcock that is now giving an unrestricted flow?
Any ideas?

Johnboy,...  engine vacuum is usually fairly high at idle, (unless you have a very low idle speed)... so, a failing vac petcock shouldn't do this, unless it's very bad...  most prominent problems should be at acceleration and highway speeds...

On the other hand,... if the vac line was sucking air,.. this would make you lean at idle, and blocking it when installing a Raptor would fix that...

So,.. uh huh, and uh uh... ...
Helpful, huh?... ...

At the risk of flogging this dead horse again...
I changed to the raptor petcock about two weeks ago.
This morning was the first day of cool weather in the Phoenix area. I noticed none of the stumbling and surging that I had experienced in the past when I was warming up the bike. Within the first mile it was purring smoothly and without hesitation.
How much of the Vacuum petcock problems stem from a rubber diaphragm in the petcock and a 2nd rubber diaphragm in the enrichment circuit?

Oh, a word about safety here. I have had my raptor petcock set to "ON" night and day since I installed it and have not had an issue with gas leaking into the oil. Thats not to say that it can't or won't happen...but it is not something to loose sleep over
JB

 
If / when it happens, he'll adjust accordingly I am sure.  

I don't tempt fate, I turn mine off (mostly) if the bike is sitting overnight or longer.

For the times I haven't remembered,   well --- no issues yet.

Some on here don't ever turn theirs off, so they will likely find the if / when quicker than I will.

Main thing is that they have lost all their wonky "carb issues" and them "carb issues" ain't coming back, ever.  

If they get an issue now, it will have a clean easy to understand cause most likely.


====================


The Great Petcock Debate


What we do now in the cold months instead of discussing which oil to use.


       

Does a fire putter outer come with those yamaha petcocks,If it don't it should.

Yunno...  A Raptor petcock isn't an entity unto itself...

It comes off a vehicle called a Raptor....  have you seen any of them blowing themselves up anywhere?...

I'd bet, there have been more Raptors sold than Savages...

In fact... 98% of the all the bikes in history have had manual petcocks... and the only ones that catch fire and blow up are in Hollywood movies and on youtube...

In Hollywood,..
every crash results in an explosion...
every bullet makes a ricochet sound...
and every car chase, involves hitting a fruit cart...

When is the last time you hit a fruit cart?...
...