billy icon
test pilot,gunnie pig, and all around experiment
hello, I am new to this site, altho I have built a few xs motors, mostly stock.. this build Im doing now has come to me via Europe, its gonna get wild here so be ready for the debating lol,
its going to have a xs1 cyleder bored out to 80mm (750cc) the clynder came to me this way and it came with wiseco pistons and rings, yet sadly I gave those pistons to someone that needed them, so I will be reciving to new pistons this week (manufacturer unknow) I do have the xs1 head that was with this set up, but did not receive the rocker box so if you know xs1 the left exhaust vale cover has only 3 holes unlike all other xs 650 have 4 holes, soooo Im going to use a xs650 head that has been ported and polished... and its rocker box...I am also using a xs1 cam, I have removed the cam gear and replaced it with the xs650 (447) gear, I will degree it when the time comes.. and heres where the question I am asking the collective of all of you out there, like I said the cyl.. and head where sourced from the Europe and I belive it came from a side car race bike.. oh yeah the question here it is (the valve springs in the xs1 head are a thicker gauge than the xs650 447 head, does any one know if xs1 valve springs where more "agresive" so to speak?????
again heres the parts, someone stop me if Im about to build a self destructing crotch bomb, we can get into the details of how Im going to tention the timing chain and what tentioners that im using, its weird but I believe its going to work,
ok parts list is a
xs650 447 bottom end in a 447 case, never opened before,low miles
xs1 cylinder prepped for 80mm pistons
ported and polised xs650 447 head, VALVE SPRINGS TO BE DETERINED by you and me.(spring measurments to come both coil dia. and free length)
matching rocker box to above head
xs1 camshaft with xs640 (447) cam gear
xs 650 447 chain tentioner,and guides and with the photos to come this might make sence, I modified the bridge between the cylenders to except the 447 rear chain guide, My thought here was that the xs1 stuff wouldn't work with the diferent diameter of the cam drive sprockets (both top and bottom)
And a bonus if some one has the specs, I would love to know what the "diference" between the xs1 cam and the xs650 (447) cam is, and the answer of "its bigger" is all I could find on the interwebs.. Ok the battery in my caliper is dead or I would have the measurements of the springs for comparison here and now, but that will be tomarrow when I update, my thought is since it was a race motor(and xs1 springs are not known to be bigger) then I have some aftermarket springs here (I doubt it) I think xs1 springs are different but I have no way to know that, but one of you does (I hope).. ok I don't think I forgot anything and I hope there is plenty of imfo here to start this roaring
thank you all in advance
its going to have a xs1 cyleder bored out to 80mm (750cc) the clynder came to me this way and it came with wiseco pistons and rings, yet sadly I gave those pistons to someone that needed them, so I will be reciving to new pistons this week (manufacturer unknow) I do have the xs1 head that was with this set up, but did not receive the rocker box so if you know xs1 the left exhaust vale cover has only 3 holes unlike all other xs 650 have 4 holes, soooo Im going to use a xs650 head that has been ported and polished... and its rocker box...I am also using a xs1 cam, I have removed the cam gear and replaced it with the xs650 (447) gear, I will degree it when the time comes.. and heres where the question I am asking the collective of all of you out there, like I said the cyl.. and head where sourced from the Europe and I belive it came from a side car race bike.. oh yeah the question here it is (the valve springs in the xs1 head are a thicker gauge than the xs650 447 head, does any one know if xs1 valve springs where more "agresive" so to speak?????
again heres the parts, someone stop me if Im about to build a self destructing crotch bomb, we can get into the details of how Im going to tention the timing chain and what tentioners that im using, its weird but I believe its going to work,
ok parts list is a
xs650 447 bottom end in a 447 case, never opened before,low miles
xs1 cylinder prepped for 80mm pistons
ported and polised xs650 447 head, VALVE SPRINGS TO BE DETERINED by you and me.(spring measurments to come both coil dia. and free length)
matching rocker box to above head
xs1 camshaft with xs640 (447) cam gear
xs 650 447 chain tentioner,and guides and with the photos to come this might make sence, I modified the bridge between the cylenders to except the 447 rear chain guide, My thought here was that the xs1 stuff wouldn't work with the diferent diameter of the cam drive sprockets (both top and bottom)
And a bonus if some one has the specs, I would love to know what the "diference" between the xs1 cam and the xs650 (447) cam is, and the answer of "its bigger" is all I could find on the interwebs.. Ok the battery in my caliper is dead or I would have the measurements of the springs for comparison here and now, but that will be tomarrow when I update, my thought is since it was a race motor(and xs1 springs are not known to be bigger) then I have some aftermarket springs here (I doubt it) I think xs1 springs are different but I have no way to know that, but one of you does (I hope).. ok I don't think I forgot anything and I hope there is plenty of imfo here to start this roaring
thank you all in advance