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Jono_Rivera Added a reply to More VP issues (potential recall)
6/17/2026 9:23am I switched from T4 to ETS MX21. Best move I ever made. Bike runs amazing.
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Jono_Rivera Added a reply to Best Sunoco fuel for my yzf 250 19?
12/26/2025 12:51pm I mix 110 50/50 with rec 90. VP T4 killed my fuel pump and PG 93 boils in my tank. 2025 Yz250f so far so good.
Jono_Rivera Added a reply to More VP issues (potential recall)
10/30/2025 3:17pm Where did you get the o-rings ? Do you have a part number by chance?
mikelawlor Liked a reply to forum topic More VP issues (potential recall)
10/30/2025 3:16pm
I had a problem with T4+ in my YZ 450. It swelled up the o rings in the fuel pump and I’m not sure the exact reason if it was boiling or what but mid moto at wide open throttle my bike would cut out. I talked to Keefer about it and he said he had the same issue. I changed the o rings in my fuel pump and just ran pump gas and issue went away. I want to switch to ETS fuels but there’s no dealers in upstate NY and there shipping is almost the same price as...
This forum topic has 174 replies.
Jono_Rivera Started a new thread ISO 20-21 Yamaha 250f motor
6/25/2021 4:30pm ISO 2020-2021 (New) Yamaha 250f motor
This forum thread has 0 replies.
Jono_Rivera Started a new thread ISO A-kit 2020 Yamaha
2/10/2021 8:38pm WTB KYB A-kit for 2020 Yamaha 250f
This forum thread has 0 replies.
Jono_Rivera Added a reply to 2018 YZ250F Tranny Problem?
1/15/2019 11:11am Did you ever figure out your transmission issues?
Jono_Rivera Added a reply to 2018 YZ450F 3rd Gear Slipping
1/14/2019 8:55am Did you find the issue?
Jono_Rivera Added a reply to 2018 YZ450F 3rd Gear Slipping
1/7/2019 4:25am My 2019 250f just started skipping in 3rd gear has 10hrs.
foreman52 Liked a reply to forum topic 2018 YZ450F 3rd Gear Slipping
1/7/2019 4:24am
Yamaha has dropped a whole new motor in my bike. That fixed the problem lol. The original motor is going back to be pulled apart and diagnosed.
This forum topic has 52 replies.