Triumphrat

brownbomber · 04-23-2007

I was in the process of rejetting my carbs when Ifound it difficult to get at and remove my pilot jets. They seem stuck down there. Is there some special tool I need? Do I need a certain screwdriver?

I'm think I may have slightly stripped them and am afraid to proceed without some advice and guidance.

Geoff · 04-23-2007

they are tight, usually, and you need a screwdriver that has the perfect sized blade, with no damage so its a perfect fit. This will usually do it. If they are stripped, you may have trouble.
I'd get the right screwdriver, push real hard, and try again. If those buggers stripout on you, it may require a trip to a machine shop to get them out without further damage
G

Sheepdog · 04-23-2007

I used a brand new Craftsman slotted screwdriver that I had to file the sides to make fit. It must be full width and sharp to get enough purchase to loosen. After that, it's like Geoff says: grab hold of the carbs, push the screwdriver in hard, and tuuuuuurn leeeeeeft...

Wooly · 04-23-2007

In addition to the very good tips that Geoff and Sheedog have already posted I also suggest using the longest possible screwdriver that will still fit the slot in the jet correctly.

The extra blade length permits much more turning torque than a shorter one and when the screw releases it is usually with a satisfying 'crack'.

Another tip is to use a small amount of valve grinding paste on the blade tip, gets a good grip that way.

Good luck!!

RedBird · 04-23-2007

I recommend using a mirror and flashlight to inspect the pilot jets for damage. If damaged, you may be looking at getting professional help if you are dead set on changing them. If not damaged, I recommend being very careful and doing the job by feel with the proper sized screw driver or bit. I used a 1/4 inch ratchet with a new slotted screwdriver bit to take mine out the first time--they are overly tight in some cases.

You don't say why you are changing the pilot jets or what year bonnie you have. I have an '03 with NH Togas and the airbox removed and the stock pilot jets (40's) would work just fine with these mods. The '03 is a 790cc--I'm not sure if the same applies to the 865cc motors. If I had your problem and one of the pilot jet screw-slots was damaged, I would leave them in and forget about changing them as long as I could adjust for the proper Air/Fuel ratio with the pilot screws. :-D

Larry

markbvt · 04-23-2007

Funny this post should appear today. I gutted my airbox and rejetted today, and I had a b!t©h of a time getting the stupid pilot jets out. Had to make two trips to the hardware store to finally find a screwdriver that was just the right size. But eventually I got the pilots out and installed 42s.

A small inspection mirror like dentists use is immensely helpful to give you some idea of whether you're actually turning the pilot jet or just mangling it.

--mark