So far I have tbr slipon with p1-x baffle and a jet kit. After riding a year of following instructions on the jet kit i finally took the carb out again to let the air fuel mixture screw out more because the jetting directions were definitely too lean. Bottom line is she feels like a whole new bike and now im wondering if there is anything else I could do to give this thing some power without getting a bore kit. A buddy of mine who races quads mentioned a megabomb header, cut airbox, and jets. Any thoughts???

 

If I want more power, I use another bike.

 

I'm with Leftlane, this bike is about being light, cheap, and reliable.
I gave up trying to make mine faster after getting a megabomb, muffler, and bigger snorkel.
Search the threads, but other than bigbore displacement I don't think you're going to feel much difference.

 

Nothing is going to wake it up like a big bore. Do all the mods you want and it's still going to be pretty gutless with the 250.

 

big bore
cams
valve/ head job
be prepaired with cash...

 

Get the header, remove the air box lid, and pull the backfire screen out. Cams will definitely help.

 

As someone who’s pissed away my share of cash on aftermarket parts, and with all due respect for any modification which enhances your bike, I also side with leftlane & ttakata73 on this one. If I want substantially different characteristics than my bike’s stock specs provide, I’ll opt for a different bike.

Bikes are engineered as packages of variables including power, handling, braking as well as the support systems such as cooling, electrical & fuel delivery. When you significantly alter one variable, it needs to be balanced by modifications to others. This quickly results in spending a lot of time & money on something that ends up being more expensive, and less composed, than a different bike can offer in stock trim.

So by all means, please experiment as you’ve suggested by playing with pipes, jets, intake mods, etc, but beware of the slippery slope beyond that.

 

what is this slope you talking about.

id love to take a ride on this "slope" hahaha

nothing wrong with modificationitis,

and as most everyone on here said, you can tweak this thing all you want but its only going to take away from reliability.

as far as cheap reliable 250cc motards go. i believe that our kawai is right under yamaha AT THE TOP. if you want a gutsy motard go for a drz400 i rode a 2009 model with dual yoshimura pipes and all i can say is wow. wheelie machine weeeee all day long BUT.... we went to the canyons and as soon as it got tight and nitty the drz was nowhere to be seen while me and my little putt putt just took off.

remember 250sf
75mpg
low seat hight
light/nimble
commuter.....

none of those things inspire much speed and power. but none the less i love my bike and i currently in the process of taking over payments on my friends 2009 R6. but im keeping my quarter liter (maybe do the bore kit) but not till its the secondary bike.

my bike has helped 3 of my friends get their M1 because lets face it this thing is the best to take the test in. plus my girlfriend learned how to ride on my sf also. its a one of a kind bike.

 

Ya get what ya pay for. I've always been a honda guy and have had alot of their 250's over the years. When I bought my klx new I didn't get a test ride as if I would have I would have got something else as is was the most pathetic under powered bike I had ever ridden. At the time of purchase I had a fourstroke honda 125 in my garage that was loads faster than the klx. Well mods started as soon as I got it home as it was either make it better or burn it for the insurance money and it was looking like toast. But after a pipe, jetting, airbox mods, quality air filter, and a powerbomb. It's not too bad, I had a mid 80's XL 250 that would smoke it but as far as new bikes you have to spend quite a bit more to go faster so I'm ok with it now but it took alot before I felt that way.

 

you already have a jet kit so you're equiped already for the big bore kit.
Price out a pipe and header, then compare the price to the 351 kit.
you will see that the 351 kit is your next mod. then you get the pipe and maybe a pumper carb if you are still not happy. How can you beat a 100cc increase for the money?
this is kind of a no brainer. Pipe and header= +700bucks,, 100cc more= 527 bucks. Hmmmm my money is on the big bore and free mods.