Home tuning

[DUBDUB]

Hi, I am after some help for tuning my 1988 gsxr250 to try get a bit more power out of it. Can anyone point me to some usefull help on tuning. I Really want to know how to tune the carbs!!

[Qkchk:Me]

More airflow going in + bigger carb jets + bigger exhaust flow = MORE POWER

[Qkchk:Me]

For a quick fix, try and put new spark plugs in first. Depends on last owners, the plugs are probably overdue. New sparks and you will feel the difference.

[Ixion]

Have you thought of trubo charging it?

[SimJen]

If you want more power, you'll be pushing shit uphill with a 250 fourstroke.
More compression, bigger carbs, free flowing exhaust, possibly head porting......lots of work for bugger all power increase. You might get 3-5hp extra but end up spending a hundred hours on it!
Or if you don't know what you're doing you could lose 10-15hp by getting it wrong.
For basic home maintenance and tuneups i.e. balancing carbs, checking shim gaps, changing oil etc, then you don't need many tools. Just get a manual.
For tuning on a 250, get a two stroke. Lots of well documented areas to play with, and pretty easy to get more power albeit at the expense of reliability.

[Dadpole]

Don't forget the easiest way to get more from a 250 - lose weight!
Not implying anything here, but every kilo you can take off the bike (or yourself) amounts to free power. Most bikes can lose a little bit of weight without risking safety or comfort. Or you could go all out on things like bar-end/footpeg weights etc.

[SlowHand]

Have you thought of trubo charging it?

Pah, what he needs is a Sukuki 2 stroke kit. I'll come help you install it. I have a big hammer.

[DUBDUB]

More airflow going in + bigger carb jets + bigger exhaust flow = MORE POWER

Any ideas on what to look for? When I first got the bike I decided to change the plugs so they are all brand new. Oh yea, I dont wanna go to 2 stroke as they sound like crap.

[SimJen]

You obviously haven't heard a decent one at full noise then with full race pipes, dryclutch, open airbox etc.
I wouldn't bother trying to get more power, just put a better pipe on it and leave it at that. You'll end up losing some of your bottom end if you mess around to much, and it'll make it a pain to ride.

[The Pastor]

nos up the trubo cuz

[DUBDUB]

Turbo would be fun but too exspensive

[SimJen]

Exactly, the cost to do mods could get you a 600cc+, which will have better suspension, chassis, brakes, bigger wheels/tires to get the power down properly......list goes on.