help identify my husky please!!

[bluetick hound_runnin]

looking to identify my husky thats missing the plate on the lower left case. i do know the top cover has been replaced shortly before i purchased the saw and the stock muffler has a custom port. was said to be rebuilt at time of top cover replacement as well but who really knows without ppw to prove.. any help is greatly appreciated! Also if anybody has any tip/info on the saw its self and/or upgrades id be greatful to gain your knowlage!! thank you in advance

 

[Czed]

281 or 288

 

[Czed]

By the way
I'd never sell any of mine
Nothing I've tried has been as durable and reliable as
The 2 series for me.
Get it ported by a well known porter
And it will out perform
Most anything made.

 

[bluetick hound_runnin]

Thats what my research has lead me to as well but the only was to really know which mine is, is by measuring the cylinder or figure out which flywheel its got as well as one having sprung dogs and the other doesnt. im guessing since i do not have the sprung dogs that ive got the 281?! my reason for needing to figure this out is im needing to order a new oil pump since mine has quit oiling on me while using it to mill out some rough planks of maple. oiling by hand sure makes things less convenient and rough on my bars too. i do plan on having it ported but when i do so im going to buy a new jug to have ported so everything is fresh when i tear it down to have the port work done. thanks everybody and stay safe out there!

 

[chipper1]

Is the oil pump different on the 281/288?
Some remove the muffler and stick a straw across the bore then turn the saw over to make a mark on the straw then measure to figure out the bore size.
@pioneerguy600 another one to move .

 

[bluetick hound_runnin]

im not sure if pumps are the same or not to tell you the truth.. and ok so the straw would be giving you the distance between the cylinder walls then using that to get your bores volume

 

[Woodslasher]

I'm gonna say 181 based off of the wrap spacer block and the kill switch style. Get the later 288 oil pump and the upgraded worm gear setup, it is much less of a hassle to replace parts on.