Valentino Rossi is hoping for fine weather as he seeks to end a difficult 2017 MotoGP season on a high at Valencia this weekend.

Yamaha has not win a race since Rossi's victory at Assen in June, with the Italian recently admitting his leg-breaking training accident probably didn't have much impact on his championship position.

The 2017 M1 struggled on slippery dry asphalt at Jerez and Catalunya, with the rear grip problems being exaggerated in wet races at Motegi and Sepang, despite the factory team trying at least five different chassis designs this season.

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Four of those were all on track during the Barcelona test, with a 2018 prototype then rushed into use from Silverstone. Nonetheless, the 2016 Tech 3 bike has proven far more effective in the wet.

Rossi starts this weekend holding fourth place in the world championship, 29 points behind team-mate Maverick Vinales and 12 ahead of Repsol Honda's Dani Pedrosa.

"The last race of the season has come. It wasn't an exciting end of the season for us, but during the three races overseas we've got some more data for our bike and we've always been fine on the dry," Rossi said.

"We hope that there will be good weather in Valencia to work in the best way.

"We are not fighting for the championship this weekend, but we will try to make it a good race anyway, and we will try to use next week's two-day test to start working on the 2018 season."

The official test will be held at Valencia on Tuesday and Wednesday.

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Pretty subdued and pointless article.  I guess it was just to post something about "he who shall remain nameless".  I hope he and Maverick can run up front this weekend just to make for a super spicy end of season race.  I got friends comin over to have burgers and beer and it better not be a dud.

If, after using 5 chasses, the problem remains, is it ridiculous to suggest that it might not be the chassis that's the problem?

MV said they should stop playing musical chassis when his race wins stopped due to the ego of his 1 race winning teammate

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Then what you moron say about jerez and catalunya, both were raced with 1st chassis which MV won 3 times. Even vinales finished 10th at catalunya race

And after chassis cange, no win at all.

Yeah agree, hope the beer and burgers go down well, and hope, "he who shall remain nameless," can keep the leaders up front honest with Mav. It's bound to be a great race if they can.

All factory use v4 type engine except yamaha. Yamaha still use 4in-line type.  VR and  JL  starting struggle in 2016,  even after test new yamaha for 2017 at 15 Nov 2016 in Valencia VR critisise new yamaha engine it failing to fix they have struggled as so far this year (2016).

After this test, In some private test they have try and change chasis but still didn't fix the problem, especially in wet race.  

We agree if all riders face the same thing at every race. But in 2017 complaints about the lack of grip a lot of happen in the yamaha rider, so the yamaha rider lose consistency from one race to another race. In one race they achieve very good results, in another race is very bad.

If we notice,  since 2016 motogp starting use michelin and in this year yamaha starting in struggled too.  

We know that each engine type have different characteristic in vibration, throttel response and  different pressure to swing arm, etc...     So, is it possible because  most of all charecteristic of their in-line engine difficultly to adjust to characteristic of michelin tyre ?

Wrong, Suzuki too.

@yossarian

Sory you absolutely wrong, suzuki have good development in this season... What happen in suzuki just about Iannone motivation... After Rin back to races, you see iannone with suzuki find good pace...

Did you remember when Iannone at ducati ? He have good motivation and always want not to be defeat by Dovi (his team mate) although it make a loss for the ducati team..

Let you see and analysis deeper into this,  notice other or senior rider say(how kevin Schwantz critical iannone) about this and what the garage rumors..

So you very wrong about what happen in suzuki..

Please analysis and don:t just talk..

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