696 Engine modifications

[DucatiTorrey]

sprockets. i'm going back to the 15t front sprocket due to changing the ride height and want to give the chain more lift off the swingarm in the front. but what about rear sprockets>

i am also raising my bike, can you explain your descision here? How does height and number of teeth play off each other. thanks

[Raux]

i am also raising my bike, can you explain your descision here? How does height and number of teeth play off each other. thanks

the front 14t sprocket is a bit smaller than the 15t thereby lowering the chain closer to the swingarm especially at the pivot point. if you raise the ride height you push the rear of the swingarm down also reducing the chain height closer to the pivot point. mind you this is static suspension height. everything changes when you are going boing boing... but imagine how low the chain will go when your going over a pot hole and the rear suspension drops in there.
so to ensure the chain comes up off of the pivot point area i'm going back to 15t AND going up to 48t in the rear (which raises the chain also).
these aren't huge amounts, but everything helps. don't want your chain cutting into that slider on your swingarm.

if my math is correct the radius of a 14t is 93% the size of the 15t

[DucatiTorrey]

the front 14t sprocket is a bit smaller than the 15t thereby lowering the chain closer to the swingarm especially at the pivot point. if you raise the ride height you push the rear of the swingarm down also reducing the chain height closer to the pivot point. mind you this is static suspension height. everything changes when you are going boing boing... but imagine how low the chain will go when your going over a pot hole and the rear suspension drops in there.
so to ensure the chain comes up off of the pivot point area i'm going back to 15t AND going up to 48t in the rear (which raises the chain also).
these aren't huge amounts, but everything helps. don't want your chain cutting into that slider on your swingarm.

if my math is correct the radius of a 14t is 93% the size of the 15t

perfect, didn't think of that. this changes things for me this spring then. Again, thanks!

[Raux]

perfect, didn't think of that. this changes things for me this spring then. Again, thanks!

what are you running now?

[DucatiTorrey]

stock, i was going to a 14t, but the lift is priority, so looks like im going taller in the back

[Raux]

ok will look at that.

as soon as i get the injector setup in the mail. i'll start measuring things out.

they arrived today. injectors included   man these things are cool

going to the shop on saturday and measure everything out.

[ChrisH]

Hows the progress coming on this? Since you have an extra head, have you thought about sending it to someone to see about a custom ground camshaft? Wondering how much there is to gain there? Since the head is better flowing, it seems likely that a new cam could retain most of the current low to mid range while increasing the high rpm pull, no?

[Raux]

lack of funds necessitated a pause.

have the PC V, 1100 cams, lightweight belt gears, etc but still need more (larger airbox, flywheel, lighter starter gears, possible dry clutch parts)

[cbass]

Nice thread  , does your monster going fast now ? !..because i'm building one from a single engine but new and stock...

i've already putted a light flywheel in my MTS1000 and it's quite nice..i've read you have done the same with your 696 (796 or not yet ?) did it was a good change ? or the 696 got already a lightflywheel ? (lighter than my old 2 kg Mts stock ..(565 gr now..and i'll never change it back 
txs

[Raux]

i've put all the mods on hold. maybe this winter.

but yeah i hope to get a 15% increase in power

[DoWorkSon]

Any word if those 1100 cams will work on 696?

[Raux]

I'll find out after riding season. I'm tearing the motor down then.