---
title: "Quartararo Yamaha Rift Deepens As Bosses Hit Back"
canonical: "https://readmotorsport.com/2026/09/03/quartararo-yamaha-rift-jack-miller-example-motogp/"
type: "post"
language: "en-GB"
author: "James Wilson"
section: "Motorsport News"
published: "2026-09-03T07:19:10Z"
modified: "2026-09-03T07:19:10Z"
---

# Quartararo Yamaha Rift Deepens As Bosses Hit Back

The **Quartararo Yamaha rift** has moved from private frustration to public reproach. Days after Fabio Quartararo said he would no longer help develop the M1, two senior Yamaha MotoGP figures have told the 2021 world champion to follow Jack Miller’s lead.

## ‘He lacks a bit of objectivity’

Speaking to L’Equipe, Paolo Pavesio said: “Fabio regularly complains that we’re not developing the bike, and when we ask him to test new parts, he criticises us for it, saying he loses his way. He lacks a bit of objectivity. Of course, we’re not at the level we’d like to be. But like our rivals, we’re trying to move forward,” [as reported by Crash.net](https://www.crash.net/motogp/news/1103379/1/follow-millers-example-yamaha-hits-back-fabio-quartararo-tensions-flare).

Massimo Meregalli was blunter, holding up Miller, who keeps pushing development work despite [losing his place on the 2027 grid](https://readmotorsport.com/2026/08/27/jack-miller-motogp-exit-pramac-yamaha-2027/). “Fabio should follow Jack’s example — he always gives his all,” the senior Yamaha figure said.

## What the Quartararo Yamaha rift means for 2027

Quartararo’s case, made at Aragón where he finished last on Sunday, is that Yamaha will not let him test the M1 on Pirelli tyres while still asking him to evaluate parts aimed at 2027 — a season he will spend at Honda. He has “no desire to develop the bike for the 2027 riders”, and we covered [his refusal when he first stated it](https://readmotorsport.com/2026/09/01/fabio-quartararo-yamaha-development-refusal-aragon/).

Beneath the row sits an older, unresolved argument: the switch to a V4 engine, which Yamaha pushed through for 2026 apparently against its lead rider’s preference. “The relationship had already become a bit complicated before that,” Quartararo told L’Equipe, [as reported by Motorsport.com](https://www.motorsport.com/motogp/news/yamaha-responds-to-quartararo-criticism-and-laments-his-attitude/10851303/).

Eight seasons together have three months left to run, with Yamaha needing every lap it can bank before the 850cc and Pirelli reset. Quartararo insists his four pre-season test days will be enough.