Thread: improved clutch action

out for a stator test ride;
with a new clutch oil jet Aprilia part #0268751 size 40 and a new seal in the slave [i found replacement seals at the rebuilder [because brembo does not sell kits]
the seal is marked "25 DJF 3505817 1 1/8 H" it is a standard 1 1/8 th inch master cylinder seal
seal dimentions;od 29.5mm, id 18.5 [tapered] and 4.4mm wide]
AF1 has slave seals too
'04 &'05 come with a #60 jet, '06 and later with the #40

there have been later bikes reported with the larger #60 jet so you might want to check

the jet was $8 the seal $3 best money spent on the bike yet
no creep, no drag and neutral without thinking, wish i'd done this 30,000 miles ago
Noel-theknurl

congrats on the easy fix

I'll be trying this. I just want to make sure I pull the correct bolt off.
Any pictures from the side?

Thanks

Noel - so just to clarify, are you recommending this as a fix for the annoying air leak problem? (lucky you don't have it) or is it just a friendlier performing clutch that eliminates those other annoying issues.

Attachment 84019

Here's a shot from the side. I hope you can see the red arrow.

Remove that bolt and the jet is underneath. You don't have to drain the oil, but a few tablespoons will drain out anyways. Use as big a screwdriver as you can get into the slot of the jet since you don't want to damage the soft brass when un-threading it. Grab the old one with tweezers or something and take it out.

Install the new one and only make it as tight as needed to keep it from un-screwing itself. It's not like the jet is holding anything together, so almost no torque is required. Install the bolt again and torque it to 100 in-lbs. Go ride and make sure it doesn't leak!

Please keep in mind that a badly-bled clutch master and/or slave cylinder will cause the same problems, so check that first since it doesn't cost anything.

Awsome!!!!
Thanks so much!!!!

I did the oil jet couple weeks ago. that and a good bleeding fixed my neutral problem. I used a really thin drill bit to get the old jet out.

Originally Posted by fast4d

I did the oil jet couple weeks ago. that and a good bleeding fixed my neutral problem. I used a really thin drill bit to get the old jet out.

Drive through Ojai much?
I can't wait to try it out! I just need to take some time to do it. Most of my time is being spent with family when I am not on mission which seems to be quite frequent these days.

Originally Posted by StefanJ

Drive through Ojai much?
I can't wait to try it out! I just need to take some time to do it. Most of my time is being spent with family when I am not on mission which seems to be quite frequent these days.

yes but I usually ride my motard up the 33.

if it's late the 150 gets jammed with cars then it might be better to take the 101 and up 33.

it might be a bit wet (and possibly snowy) and dirty this weekend.