What do grommet and plug do on bulkhead of 55 Rancher?

[jtGenerator]

Hi guys,
I had to replace the bulkhead on my 55 Rancher when I stripped the threads out of the plastic. When I received the replacement it had a rubber "stopper" in with it which I interpreted as the "plug" illustrated in the parts guide.
When seated the new bulkhead, the air nozzle comes through a hole in the bulkhead. I tried to connect the new "plug" part onto this nozzle with no success. I compared it to the part I'd removed from the original bulkhead (grommet?) and it was dissimilar. I reconstructed the saw using the original grommet and left the "plug" on the side.
I think I returned the saw to the condition it was in albeit with the new bulkhead. I just hate having leftover parts.
I can't see how the "plug" would work and to what purpose.
Thie idea here is to pull unfiltered air through to the fins on the fllywheel, right?

 

[cus_deluxe]

Could be they used that plug on the non air-injection models (ranchers) to fill the hole in the bulkhead. Prob cheaper to send both with the kit then have them seperate.

 

[cus_deluxe]

The idea of that is to use the flywheel to sling out chips and debris, and in theory provide "pre-filtered" air to the air filter itself.

 

[jtGenerator]

Could be they used that plug on the non air-injection models (ranchers) to fill the hole in the bulkhead. Prob cheaper to send both with the kit then have them seperate.

I was thinking (hoping) the same thing.

 

[cus_deluxe]

I honestly dont know if they made some of these without air injection.

 

[jtGenerator]

The idea of that is to use the flywheel to sling out chips and debris, and in theory provide "pre-filtered" air to the air filter itself.

Got it. Then it's pulling air INTO the filter area not the other direction.

 

[cedarshark]

Yes air is pulled across the fins on the cylinder,cooling the cylinder and is then funneled to the air box outside the filter. I guess there may be a slight benefit that the air is warmed slightly as it passes over/through the cylinder.

 

[alexcagle]

It is for the Husqvarna 55 Mobster Special.
It's to keep "Jimmie the Rat's" blood and entrails from clogging up the air filter.

 

[jtGenerator]

It is for the Husqvarna 55 Mobster Special.
It's to keep "Jimmie the Rat's" blood and entrails from clogging up the air filter.

So that is why they included the superflous plug! Thanks!