Tips needed for more POWER!!~~ SUZUKI FXR

[kerryg]

Mate, it's one of those "law of diminishing returns" things. Like my mate many years ago who spent every last cent hotting up his old Mark 3 Zephyr (planed head, Webers, free-flow exhaust, hot cam grind etc) ..and got easily blown away at the lights by a guy (actually ..it was me) in a bog standard 1200cc Toyota Corolla. Cheapest way to go significantly quicker is to buy a quicker machine, with very few exceptions. And investment in performance-improving modifications is usually a bad investment. It may diminish your bike's value even.

[Ivan]

Cheers

I'll definately keep it in mind. I think i'll try getting a carb first but it will be a slow process cause theres so many other things to get done

you got that cool foggy pic as your avatar got a link i love that picture so cool

[crash harry]

Sell it and buy a 2-stroke. Should be able to sell it and buy an RG150 and be cost neutral or better.

Then you get to make the cool ringa dinga ding noise!

[Oakie]

Helpful bunch aren't they ....

When I got my old FXR serviced for the first time, the service manager said there was a wee tweak they could do to give a little more power ... but more importantly it would overcome a wee flat spot when you rolled the throttle on from about 3000 rpm. It involved a larger jet and a fiddle with the carby.
Worked although it cost me about 3 kml in fuel efficiency. Talk to your Suzuki shop.

[phoenixgtr]

you got that cool foggy pic as your avatar got a link i love that picture so cool

Yeah. I thoght it was a crack up

Pure class

[phoenixgtr]

Helpful bunch aren't they ....

When I got my old FXR serviced for the first time, the service manager said there was a wee tweak they could do to give a little more power ... but more importantly it would overcome a wee flat spot when you rolled the throttle on from about 3000 rpm. It involved a larger jet and a fiddle with the carby.
Worked although it cost me about 3 kml in fuel efficiency. Talk to your Suzuki shop.

Cheers Oakie

[Racey Rider]

Check the brakes are retracting well. Should be able to hear them just touching when spinning the wheel. If they are binding too much, they are robbing you of HP. Clean out the calipers. Can't do it? Learn to do it! It's not hard.

Go to a non O ring chain. On small power bikes, even the friction of O rings can rob a bit of power.

Are the tyres at the right pressure. low pressure will create drag and can slow the bike.

Is the air filter clean? Blocked filter will make motor run rich/ down on power.

Is the throttle ajusted proberly? if not the carburator slide may not be fully open when throttle is twisted fully. - motor down on power.

Is there extra weight on the bike you don't need? Carrying stuff around that is not really needed today wastes motor power.

Is the sparkplug due for replacement? A worn tip or gap on the plug can cause weak spark. A weak spark can cause poor fuel burn, and less power from the motor.

Use 91 Octane unless you've had motor work done that requires a higher Octane.

and lastly, Hum the theme from TOP GUN while riding

[phoenixgtr]

and lastly, Hum the theme from TOP GUN while riding

That is some excellent advice

Thanks Racey Rider

[Phurrball]

Kick back and enjoy the outrageous fuel economy!

Mrs P has an FXR - I've ridden it around a bit, it ain't that bad...

...especially as her fuel bill is half mine!!!

There is a link to an FXR site around on a KB thread somewhere - I remember reading something about feck all power meaning there was a diaphragm in need of attention...Here 'tis: http://www.fxr150.ws.net.nz/

Enjoy...

[Racey Rider]

That is some excellent advice

Thanks Racey Rider

(Uh-hmm) rep points! (Cough, cough cough)

[hazard02]

If its power at higher speeds you want then try riding with your head down. it takes away some of the drag but you look like a git. performance on an FXR is all about sacrifices.

[thehollowmen]

what RV100 said.
And if you've got a mechanically minded friend, do the calculations and plane the head and run 98.

[Pathos]

Helpful bunch aren't they ....

When I got my old FXR serviced for the first time, the service manager said there was a wee tweak they could do to give a little more power ... but more importantly it would overcome a wee flat spot when you rolled the throttle on from about 3000 rpm. It involved a larger jet and a fiddle with the carby.
Worked although it cost me about 3 kml in fuel efficiency. Talk to your Suzuki shop.

I idle my fxr at 3000 :P .

only drop below 7000 when coming to a stop...

if a fxr is too slow you need some better corners, but yeah not really designed for out of town.

don't scared to gas it to 10000 either, she loves it, you get through the gears far too fast if you keep it over 8000.

I wouldn't waste money on it, you can get a good price for a fxr in good condition and upgrade.

[SuperDave]

The FXR's a great first bike although I too felt the need for a bit more power after having it for a few months. But in saying this I would appreciate where it excells - the bike is very nimble and controllable and if you get some decent rubber fitted then you will be able to ride it flat out in some tight twisites and have a shitload of fun. Going fast in a straight line aint as exciting as blasting it along in corners suited to the bike.

You reckon it has a problem going over the harbour bridge? Sounds like you are riding it in the wrong gear at the wrong revs. I never had a problem going over the bridge - it does 100 easily and can do over 120 if you try.

Changing the size of the sprocket can help with a top end if thats what you are after. I had my rear sprocket changed and it only gave an extra 4kph on my top speed but it felt as though it 'opened up the gears' giving more from each gear.

[FROSTY:Me]

i'd talk to the guys who bucket race FXR's --if anybody knows performance tweaks they will.
I weigh in at 75 kg and i've had 3 FXR's --Given they are only 150cc 4 strokes Im amazed they get 140km/h
I've been curious what would happen if a reverse cone megaphone exhaust and a GN250 carbie were fitted -the carb exterior looks the same a a gnu one.
Im wondering if theres enough room to deck the head a tadd to boost compression.
its a fun project I'd love to take on