Rephased XS650 Yamaha Motorcycle

[ChopperCrank]

The GS is a 270 degree crank. Early GS500's were spec'd at 52 HP. A good air filter, rejet, and pipe can get one up to around 57 HP. Drop a tooth on the front sprocket and a slight timing advance and you have a fun bike with a lot of old school character.

[1100tech]

the 360 degree engine is sweet @ the pipe BUT not HALF as angry as that one there is a side car vid on here with a rephased motor that sounds AWESOME!

[wsbill14224]

Sounds good, but 180 degrees is how a vertical twin should be, like the GS 500, which is smaller but will outrun this bike because it's 100 lbs lighter.

[1100tech]

that would be .....WRONG ! i road raced against the GS 500 @ 39 HP and my yamaha XS650 punched out to 750 @ 70 HP they were just a post to go around,even though it was 100 lbs heavier mine was 365 lbs wet

[nrhbmw]

wow!

[TobyTheDug]

sounds like a xs500 xs400 or xs250 blah

I much prefer the even firing of 180 degrees apart as per real 360 degree twins

[Checkism]

Do I want one? Oh Yeah!

[wolf1percenter]

sweet bike bro, cant live without my xs650 chop.

[johns1200low]

COOL, Other than altering the way it sounds...( And it does sound good :) Do You have any notable performance gains or low end "grunt" by doing this, Or is it just for fun???

Which is O.K. too. LOL cool vid.

Later, John

[johns1200low]

SWEET !!!

[nandoGdog]

What does rephase mean? Sorry I'm a newby.

[51455]

The firing order was altered by offsetting the crankpins from each other to usually, 90 degrees. This creates an uneven firing order.

[ibuiltmineo1oo]

sounds just like my csr750 kawi engine.... The kawi must not be 360 phased from the factory?

[redmarkerman]

the xs650 used to win all the races in USA...then they were banned from racing!!!..gave the Hardleys a look in!!!

[oltinear]

Heard about rephase,but never heard it.Sounds nice.I miss my XS.

[basilboris]

My dream bike! Enjoy your XS mate.....lucky s*d! :)

[athleticdiv]

yum

[Reroy55]

nice bike !