OzVMX Forum

Marque Remarks => Yamaha => Topic started by: jimg1au on August 07, 2008, 01:03:36 pm

Title: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: jimg1au on August 07, 2008, 01:03:36 pm
hi
i need to replace my clutch basket on my dt360.i have a spare dt250 clutch basket.the only difference i can find is the 360 has 64 teeth and the 260 has 65 teeth on the drive gears.manual confirms this as well.GEAR RATIO FOR 360 IS 64/24 =2.66 FOR THE 250 65/23=2.826.my question will the 250 work on the 360 giving a ratio of 65/24=2.7.has any one done this.will it work?? also might it be better for my dt gearbox make the bike rev out quicker

an other point my dt360 ignition seams to cut out on top of the rev range change gear and it revs again.would a sc500 ignition make the bike rev out more.
thanks
jim
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: crs-and-rms on August 07, 2008, 01:32:23 pm
if you change just the cluch hub the teeth will be to big  and would run to tight you would have to change both   the clutch basket and the crank drive gear and the idller gear
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: vandy010 on August 07, 2008, 01:42:23 pm
whats the timing set to jim? how much before TDC?
my RT1 uses a dt400 set up set at 3.2mm BTDC and works fine.
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: jimg1au on August 07, 2008, 03:23:24 pm
std dt360a cdi at 2.5 mm btdc same as mx360
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: vandy010 on August 08, 2008, 01:43:06 am
y'know Jim, i was in a hurry when i put that last post up and walked away from my comp thinking something just wasn't quite right. mine is set to 2.4mm not 3.2mm.
as for changing the CDI over to the SC one. give it a try, ya never know, it may give you what you want.
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: Freakshow on August 10, 2008, 07:43:50 pm
I thnk if you use a 500 you need the whole thing not just the black box.
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: jimg1au on August 10, 2008, 11:02:00 pm
i have the complete sc500 ignition system including coil
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: firko on August 10, 2008, 11:38:09 pm
I hate to correct Freaky again but you can mix'n'match 'em Jim. I use a DT400 cdi on my DT1 with an MX250 black box. I'm using a DT400 ignition on my RT1 engine and will use a YZ400 C black box.
Title: Re: dt/mx360 vs mx/dt250 clutch basket plus ignition
Post by: Freakshow on August 11, 2008, 11:07:28 am
I though it had something to do with the fly wheel set up? or maybe that was just the weight for Dt ? IHNFI