Cleaning 4th gen carbs. Remove / inspect pilot screw, or leave it alone.

The manual say's they're set from the factory & don't need adjusting. I also don't see any reference to them on most of the carb cleaning tutorials I've looked at here. Are most of you guys just leaving them alone or what? Thanks!!

 

To be perfectly honest, most I clean have been sitting to long but are still in overall good condition but just wont run correctly due to sitting (my gen2 currently) and the fuel has clogged the jets. I will not mess with them just to do a quicky jet cleaning. If they are an unknown then I will take them oot and clean and set at 2 1/2 turns at our elevation. Will depend on your situation.

 

Thanks Toe. Looks like I'll be going in . . .

 

You'll need a special tool for 4th gens. Lacking such, you might likely say "stuff it" and walk away. Still, some cleaning can be done by removing idle jet and (with carbs inverted) shooting carb spray into its hole, followed by compressed air.

If you do remove screw, take care not to loose the small parts associated with it. Blast carb cleaner spray into the screw hole (while idle jet is removed) followed by compressed air.

|Screws were set a bit too lean from factory, so experimenting with richer adjustment (up to 3 1/3 turns) might cure weak off-idle running or surging at low rpms.

 

I was able to remove them using a piece of small diameter copper tubing which I gently tapped on over the screws, allowing it to take on the "D" shape. Good thing I did - there was some crud in one of them.

 

The jet kits of yore used to have that tool with the funny "d-ring" shape. If you lived around the block I would let you borrow some brit tool I got with a flexi arm and that "d-ring" thingie at the end. Anyway, glad you were able to access them buggers, I always turn them oot btw. Cheers :wave: Ice-Hunchin

Were your o-rings hardened like the ground in Buffalo? I clean those needle jets with scotch brite and some bagged oot sand paper. I use a big magnifier I got in the garage...Thats just me though...:waco:

 

Were your o-rings hardened like the ground in Buffalo? I clean those needle jets with scotch brite and some bagged oot sand paper. I use a big magnifier I got in the garage...Thats just me though...:waco:[/QUOTE]

They weren't quite that hard, but new ones are on the way. Got me one of those big magnifiers w/ the light on it too. Nothing like it when working on this stuff . . .