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Have a 2008 yamaha apex MTX, sled starts to backfire around 7000 rpm and will not rev up past 7000rpm. I hope someone can tell me what's wrong, thanks!

Just wondering if anyone has ever had this problem on a mcx 260 apex. It does not idle, when I push on throttle it seems to load up with fuel and is very hesitant, when rpm gets to 3000 it cleans out and runs good, then while accelerating when turbo starts to create boost pressure (between 6000...

Heading out on dec. 12 to valemount, just wondering if anyone has any clue if trails are ridable into Chappell/millidge and allan. Please let me know!

Need head nut torque for apex, swapping turbo over to another one and I need to get the motors back together ASAP!

Hey everyone, need yamaha apex head nut torque spec in Nm. I hope someone can help me out! Thanks!

Hey everyone, my dad has a 2006 Mcx Turbo apex mtx, I am swapping the kit into his 2009 apex mtx, just want to know if there is anything else done to the motor in the 260hp kit besides the head shim?

Hello everyone. I ride a 1986 trx 250r, 1981 cr 250r, and a 2008 nytro mtx with a push turbo installed and set up by myself.