maximum speed questions

SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

Hi all!I am a rookie of NSR,please to help me...
I bought Athena190 cylinder Kit and it was installed on my bike,
I can feel the crazy acceleration power when the throttle increase
rapidity...
but the maximum speed is about 100mph only at fifth gear 11000rev...then after changing to next gear the rev return to
9500 and speed remain at 100mph...
I have confused so much for a long time...

Here are some details for my bike:
Athena 190 cylinder kits/Athena racing muffler/Athena carbon silencer/special desigen crankshaft/lightweight balancer/PJ-39/racing housing/racing step/damper/bt39ss/yss shock absorber/sprocket drive(16t)final driven(34T)428

Hex · Party Boy Joined: 04 Feb 2002 Karma :

My first thought was the gearing (but I don't know what the standard gearing is), however thinking more on it where is this bike originally from?

Heard of some been restricted in the CDI unit.
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Monkey hanger, Born and bred
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SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

My bike is originally from HONDA NSR 150,
but the parts are 80%common with NSR125,
especially the power plant

AcIdBuRnZ · World Chat Champion Joined: 28 Jul 2003 Karma :

You haven't mentioned the intake restricter? I assume then you have removed this?

Don't know if that helps.... ask Kickstart, he's your man for this sort of stuff.

Most of the other guys will just tell you to buy a bigger bike! Laughing

Good luck
Mark
____________________
Past: Honda NSR125R >> Kawasaki ER-5a2 >> Kawasaki ZZR-600e1 >> Suzuki GSXR-750Y >> Honda VTR 1000 Firestorm
"Chickity China the Chinese Chicken..."

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

Suspect you have just greatly increased the mid range power, but not gain much top end power at all. It is possible that it is being strangled a bit by the size of the carb, so it might be worth trying a larger one (I think Malossi do a 30mm carb kit for the NSR).

All the best

Keith
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Traxpics, track day and racing photographs - Bimota Forum - Bike performance / thrust graphs for choosing gearing

SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

thanks your help!
My carb is KEIHIN pj39mm then my setting is:
the needle at the third step,42/200 nozzle without air filter install
Oh,my God...where is the problem...please... Crying or Very sad

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

I have a solution which will see you doing 160mph. Shocked

1. Book theory test.
2. Pass theory test.
3. Book practical test.
4. Pass practical test.
5. Sell NSR.
6. Buy a 600

Maybe I just don't see the point in spending shit loads on an NSR and it still just does the same, but slightly faster. For the amount you're spending it's so not worth it. Save your cash, buy a proper bike.

And I'd check the gearing out on it. And have you fitted an uprated powerband? Confused

Hex · Party Boy Joined: 04 Feb 2002 Karma :

Ste don't think he's in the UK. Sarky git. Razz

____________________
The BCF's very own Party boy! Though he's getting old and feeling it!
Monkey hanger, Born and bred
My little photo portfolio

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Meh.

He should still get a proper bike Razz

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

I have a feeling that the maximum legal bike size in taiwan is 150cc Smile

____________________
British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Which is how much? Confused

SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

Ste, before you say;

The average wage in Taiwan is probably lower than here too! Smile

____________________
British beauty: Triumph Street Triple R; Loony stroker: KR1S; Track fun: GSXR750 L1; Commuter Missile: GSX-S1000F; Cheap project: CBR900RR FireBlade
Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

SARS · Derestricted Danger Joined: 01 Mar 2004 Karma :

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Robby · Dirty Old Man Joined: 16 May 2002 Karma :

Taiwan eh.

Show us pictures of your girlfriend/sister/daughter then.

Danny · Ask Me About Stoppie School Joined: 26 Jan 2003 Karma :

Get an NSR250 and put the NSR150 stickers on. They'll never know. Wink

Dr Nick · World Chat Champion Joined: 20 Jun 2003 Karma :

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

NSR150RW · L Plate Warrior Joined: 18 Mar 2004 Karma :

Hi Sars, I have a 2001 NSR 150 RW made in Thailand. I love this bike and don't want anything bigger for the time being. I have had several big bikes earlier in my life, but this little pocket rocket is great fun Laughing

I think your problem can be the jetting. Main jet 200 can possible be to big. When you change from 5th to 6th the resistance is bigger and the fuel/air mix a little richer. My advice is to try a 190 jet and test the bike again.
You also ride without air filter. A sure way of killing your engine fast.