Cylinder firing order

[rx1 fern]

Hello . I have a 2004 yamaha rx1 and was wondering what cylinder is number 1 . Does it go 1 2 3 4 from the clutch side or does it go 1 2 3 4 from the brake side .want to finish my msd install and cut my msd spark plug wires . Thank for any help .

 

[Jona$]

from the pto to the mag.

 

[rx1 fern]

So pto is which side , brake side or clutch side . Thanks

 

[Stubbs]

Clutch side.

 

[rx1 fern]

So it goes 1234 from clutch side then

 

[Jona$]

yepp

 

[rx1 fern]

Okay . Thanks for the help . Also do you guys know the firing order on these motors

 

[Jona$]

1.4 and 2.3 if i remember correct.

 

[GT Mills]

edited, see below

 

[GT Mills]

1.4 and 2.3 if i remember correct.

For firing order, look in the manual under valve clearance maintenance, the valve sequence and thus firing order is 1-2-4-3. In the original RX1 Manual that is page 2-10, and it is the same page on the following Apex manuals as well. This is why a bump in HP is realized when changing the exhaust headers to a 1-4, 2-3 configuration.