Track days 2018/19

Nice, got plans for winter work myself. Did you get your shock sorted in the end?

Personally I've overlooked the engine for now, just accepting it's going to be down on power compared to many modern bikes. But also accepting that at my limited ability power isn't as important as improving exit speed and how soon I can get back on full throttle.

That said, my plans for engine work if/when I do it would start with chip and power commander to try get best fueling possible. I see real benefits on track with getting a nice smooth initial crack of throttle. I was going to get a Forza chip which from what I gather is a good affordable clone of a Gabro chip.

Based on no experience and only internet gossip I was going to skip over air box mods. The ones I've seen look hacky with the only benefit being extra noise. A chap on Aprilia forum who seems to know what he's talking about said he finds the stock air box and filter unbeatable for all stages of engine tune he's worked with.

I swapped out my stock exhaust after feeling the weight of it. I bought a homemade one from a member on here. It's full length which is what tends to be recommended for these engines. I didn't notice the power difference until taking it on track. Mostly fueling improves. But on track I noticed I was getting wheelies and head shakes where I wasn't previously which suggests better wide open acceleration. Definitely worth doing if you can find one for a reasonable price that is full length and can be baffled. Mine is 102db with baffle, 107db without so baffle in for Cadwell.

Hopefully some more experience people pipe in. My plans this winter are to get track fairing, fix rear brake, strip and re-build front brakes, service shock and forks and maybe have a play with valving on forks too. Ah also have a look at the vacuum slipper clutch - back end was waggling on every down shift in Spain.

Gen 1 I presume?

I've got the Forza chip, EVO airbox and one of Mark's modded collectors. After a TB balance the bike was transformed in the mid range and pulls smooth from as low as 2.5K. I couldn't say if the airbox mod works or not as I haven't run the standard airbox with the other mods but the combo is certainly excellent. Oh, I've got one of the early air boots as well.

Collectors from Mark - "Redratbike" - makes them based on the Aprilia WSB spec and has dyno sheets to show improvement, see here for contact:

One way valve ? 

I found when exiting pit lane, stoping and selecting neutral was difficult and even once it showed it was in neutral but then as I let the clutch out it still moved, and returning to the pits stalling the bike was easier then find neutral. 

Also on down shift it wouldn’t always catch gear release the clutch and it was between gears

Thats bit harsh.

Ive never seen anything of the like on there.

👍👍

Yup,all of them.  It's a little brass jet that meters oil feed to the clutch,hidden behind a blanking screw in the case near the filter and drain plug.

Early bikes had a 70 or 60 if irc,later Gen2's came down to 40 I think

It's essentially a pilot jet from an old carb