Now that we have already invaded this thread about rough running talking that much about these Polini filters … here we go … for something completely diferent: The Larch (do you remember ?)
So I´m going to give the O-rings a try.
Dulcinea is quite slim and there is not much place for an airbox under my tank (an english one).
- k-DSCI0002.JPG (65.36 KiB) Viewed 4627 times
This ist the way I had it till now: the original 42mm tube to the airbox of a 500, cut between the folds, where I mounted some cheap K+N copies. After the very first real hard shower I fixed an alu plate in front of the first filter and from then on had no more extra problems with rain. But I´m sure that these filters are a mess, although I fear that there are more reasons than only that for the way the motor behaves. The carbs are supported from their caps to the original airbox boreholes. It seems to me that the rubber inlet manifolds of the 501 have the shortest lives of all. Don´t know why but they are a fountain of ongoing pain and sorrow. If you don´t use the original filter boxes, you have to catch the carbs anywhere! And this way you can take the filters of. They dont weight much the two versions, the Polinis even lighter and a bit wider..
- k-DSCI0005.JPG (46.06 KiB) Viewed 4627 times
- k-DSCI0006.JPG (64.21 KiB) Viewed 4627 times
After spending some K+N filteroil I wondered wether this was a good idea, treating a foam filter. We`ll see. I have to wait for dry streets, they are already salty.
…it must be a… (Ian?), What main jet do you use with that Polinis for a 501?
Having made 12000 km still it´s not going like it should.
With Rocinante a 501 R motor from a Camel in a 3 1/2 chasis with original 350 airbox with or without filterelemts inside and original 350 doblefold Lafranconis f0r 350 it works very well, using a bit rare setting of the PHBH28: slide 50 (instead of 40), atomizer 268T (instead of 264 BC), but with the same needel X18, main jet 130-140.
I´ve put the same configuration in Dulcinea, who weares a somehow enlightened 501 with L5 that should turn easily in upper ranges, but does not. I´ve also tried the original setting for the 501 with slide 40 and atomizer 264BC. The problem was the same: till 5000 well and then, when Rocinante begins to run, no punch