Honda 250SX & ES Carbs the Same?

[Dirtcrasher]

I posted it ages ago, I believe it was .080 thousandths (as well as Thorpe said) I do not recall the drill # but it's chicken to locate with google.

I also believe it's a QA03 that stinks, QA08 is the 86/87 carb. QA05 might be the 350X which also starts fine but I cannot confirm this. I don't do much wrenching lately.......

Blow the chips out backwards with carb cleaner after and grease your drill bit when drilling.

[zainyD]

Should be a 5/64" bit.

[dougspcs]

I posted it ages ago, I believe it was .080 thousandths (as well as Thorpe said) I do not recall the drill # but it's chicken to locate with google.

I also believe it's a QA03 that stinks, QA08 is the 86/87 carb. QA05 might be the 350X which also starts fine but I cannot confirm this. I don't do much wrenching lately.......

Blow the chips out backwards with carb cleaner after and grease your drill bit when drilling.

Awesome thanks DC, Thorpe and others for input..I'll do that in the next weekend or two. I'd love to make the 85s cold weather ready!

[tri again]

Interesting stuff, guys. I've got an '85 and inexplicably it started having hard starting two winters ago. Is this something that deteriorates over time? I'd be happy to drill out the starter jet, but I can't help but wonder why it didn't do this before.

May not be it but I cleared 90 carbs with a .005" acupuncture needles before I discovered an .080 guitar string will fit.
An then .010"
It's some sort of plaque like the dentist scrapes off yer teeth with that steel lever
or ultrasound.
jack.

Your 85?
sx br?
could just be that the choke enrichment piston isn't throwing all the way.
Stretched choke cable?
Last valve adjust was how long?

Some say slosh the trike side to side violently before you start it.
I've also noticed (and posted) why does mine spin great and fast with the starter
but not really want to start but by foot cranking it to compression stroke, it fires immediately.

I really don't mind the quirks.
Unauthorized personnel can't get them started. ;-)

[tri again]

Good tips guys. I'll print out that service bulletin. I'm really impatient to get my trike going again, but the Ebay auction for the carburator still has six days left. It'll probably be a couple weeks before I have all the parts and get it put together.

That service bulletin is only good to let you know you are not crazy and not the only one.
The parts are hard to find.
The jet also may not want to come out but by trying with the screw, mine reamed itself enough to be perfect.
I would totally bite to break the carb casting so I just quit.
..and then it works, starts perfectly because of the mild mutilation of the brass cold start jet.