M695 power increase

[Two dogs]

G-day ,
other than upgrading to a larger capacity motorbike
what ways of increasing horsepower options are there
for the little 695 and aprox cost involved?
I am reluctant to trade in as I have the bike set up really well
with new suspension etc. and enjoy the bike at the moment
also the trade in loss of $$ involved as I have had it from new.
I have termi/ecu/open airbox 14T fully adjustable forks
8000 kilometer's old
regards
dez

[stopintime]

I thought about the same thing for my 800, but then I learned how to ride AND did the suspension/brakes upgrade.
It doesn't bother me anymore.
The research I did showed that it isn't worth the $$$$$$ - too expensive and not enough improvement.

My 0.02

[Raux]

800 crank and pistons.

gives you an 803cc motor.

[somegirl]

Cheapest (although not necessarily easiest) way is to lose weight.

[He Man]

695 to 800 isnt that big of a jump, and 800 to 1000 also isnt that big of a jump (but more noticeable).

You can however free up some power... losing weight, lighten flywheel will help. Lighter wheels will also help.

[teddy037.2]

800 crank

I was planning on doing that to the 620, along w/lighter flywheel...

 

anyway.

+1 on

You can however free up some power... losing weight, lighten flywheel will help. Lighter wheels will also help.

power:weight is a pretty big factor to keep in mind, and lighter wheels will help EVERYTHING

[eesnas]

I am a bit lost... Is the 800 crank a big bore kit?

I thought the only one on the market was the Ferrachi 750 Big bore kit? Or is the 750 only for the 620 and they make an 800 for the 695?

[teddy037.2]

the 800 has a longer stroke than the 750 but the same bore.

my bike was a 620 w/the ferracci hi-comps, making it basically a 750. so stroking it would make it an 800

[caperix]

I am a bit lost... Is the 800 crank a big bore kit?

I thought the only one on the market was the Ferrachi 750 Big bore kit? Or is the 750 only for the 620 and they make an 800 for the 695?

The crankshaft changes the engines stroke, a big bore kit would be different pistons and cylinders.  The 620 uses the same stroke as a 750 with a smaller bore.  The 695 uses the same bore as the 750/800 with a shorter stroke than even the 620.  A big bore kit is easier to install as it does not require spliting the cases, unless you need new rods.  A different crank should be cheaper but requires a full engine tear down.

[psycledelic]

Sweet lord that sounds like a lot of work, just to get to the equivelent of an 800 motor?  I believe I would cut my losses, sell the 695, take the $2k it would cost to do all of that stroke/piston crap and buy a new bike.   IMO, if you are already wanting more power then the 695 offers, it won't be long before the 800 bores you also.  Then you have a souped up 695 that you will never come close to selling for it's true value.  I would love to have more power then my S2R800 offers, but I am so attached to the bike, I have come to terms with having to buy something to park beside it.  I am not trying to talk you into or out of anything, but changing the internals of the motor sounds like a long term commitment to that bike to me.  I would just make sure that is what you want before you do it.  

[Raux]

the OP did mention the bike is completely sorted out with the suspension work and all mods to his liking.
adding more power to change the responsiveness of a bike he already loves does sound like a good investment.
but i'm biased.  doing all this work on my bike also.

[Two dogs]

Sweet lord that sounds like a lot of work, just to get to the equivelent of an 800 motor?  I believe I would cut my losses, sell the 695, take the $2k it would cost to do all of that stroke/piston crap and buy a new bike.   IMO, if you are already wanting more power then the 695 offers, it won't be long before the 800 bores you also.  Then you have a souped up 695 that you will never come close to selling for it's true value.  I would love to have more power then my S2R800 offers, but I am so attached to the bike, I have come to terms with having to buy something to park beside it.  I am not trying to talk you into or out of anything, but changing the internals of the motor sounds like a long term commitment to that bike to me.  I would just make sure that is what you want before you do it.  

Yeh good point pyscledelic
The bike is still under factory warranty which probably would be voided and only getting it up to an 800 is not enough of a increase with what sounds like a substantial $$ investment hmmm!!!
time to re think maybe a second bike or a trade in is the solution.
Will a lighter wheel set really make a noticeable difference ? even that is not a cheap option.
Now how long untill there are streetfighters going second hand 
Thanks for the input DMF's

[kopfjäger]

Best bang for the buck is a lighter set of wheels.

[Scottish]

Wait, any links to this conversion? If the 695/750/800 all have the same bore then why change the pistons too? Do they have lower crowns for head/valve clearance? How much of a bump to torque/hp could you expect out of a 695 with ECU/airbox/ and full termi mods?

[Raux]

working on it. Stu said the 800 pistons have a lower pin to crown height.
the 696 and 695 are basically the same motors with different heads and ECUs