Yamaha Engines (7)

Discussions Replies Latest Activity

APEX with Skytrax GB Installed

Installed the completed and painted engine mount, dropped in the Apex engine, and finished install of the Skytrax gearbox.  Oil system inst…

Started by James Neirinck

1 Jan 23
Reply by Jonathan Kreilich

Yamaha Apex 701

  Any thoughts on putting an Apex on a 701? I see engine mounts and EFI kits at Bdturnkeyengines. I haven't seen any videos of a 701 with a…

Started by Pat Way

8 Oct 21, 2023
Reply by Pat Way

601 xlb apex engine mount

hello i have 601 xlb building apex engine mount wondering if somone knows how many degres should engine be off and hieth and centerline and…

Started by Anastasia dovba

1 Mar 3, 2023
Reply by Ian Robb

Trial fit of exhaust header on Apex

Trial fit of exhaust header from a Suzuki Samurai. Spacing is good.  Next step to weld it to the exhaust flanges. (Note: disregard the radi…

Started by James Neirinck

3 Nov 24, 2022
Reply by charlie rosenzweig

Skytrax Gearbox Installed onto APEX Engine

Installed the Skytrax gearbox onto the Yamaha APEX.  Next step is to install the oil tank and oil lines, air intake, and exhaust header.  W…

Started by James Neirinck

1 Nov 24, 2022
Reply by charlie rosenzweig

Yamaha YG4 Engine Conversion?

I have been doing some looking into doing a conversion on a yamaha YG4 apex FI snowmobile engine. I have found a lot of older discussion on…

Started by Brendon de M.

9 May 26, 2022
Reply by James Neirinck

Engine Mount - Yamaha Apex

Started by James Neirinck

0 Feb 10, 2022


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