Simple Question ... Well I Hope So ...

[alien.46.uk]

Right I have an (hopefully) Easy and Quick question for you bunch a ... erm ... *cough* ... bikers

Anyways, some may be aware my engine blew up in my Aprilia Pegaso 125 (Rotax 123), so in went a Rotax 123 from an RS125 of a 2 year younger bike.

Basically my rev range is 10.5k Redline, then goes up to 12.5k to end of Redline. Now the RS125 i beleive has a 12.5k Redline then goes to 14.5k, or am i wrong already?

Basically when i hit my redline of 10.5k, have i got another 2k to play with before "really" hitting the red line?

Or is my revometer (cant think of right name) geared to read say the 12k the engine is doing as 10k on my revometer?

Or perhaps the stock Pegaso 125 Rotax 123 was geared slightly different to only use 10k and 12k at it's limit?

Basically im wondering say i hit 1k into red, so 11k, that really is only 11k, or its tecnichally 13k if you understand me.

Purly for interest reasons and possibly a little more fun once in a blue moon .

Cheers all,

Luke.
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2007 Kawasaki ZX10R :: 1998 Kawasaki ZX-9R - SOLD
1998 Yamaha FZS600 Fazer - SOLD :: 1994 Aprilia Pegaso 125 - SOLD

[hmmmnz]

a tacho will only display what its reving, it can't lie (unless its a mechanical tacho with the wrong worm gear)
so if you have a rs125 engine and it redlines at 12.5krpm thats what it'll redline at no matter what bike its in

post a pic of your bike, ididnt know they made a pegasso 125,
have you derestricted it as well
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the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[cagiva gezzer]

The different exhausts on the two bikes will be the main factor in determining the actual redline / peak power.

The redline should be the point at which it makes the most power. The redzone is over run, where the engine will rev BUT won't increase in power.

Don’t trust the tacho to display the actual real RPM. Mines a good 500rpm off. It’s just an indication.
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"because one stroke isnt enough and four strokes waste two"

[alien.46.uk]

hmmmz:

I'll get some pics up in a mo, just witnessed my brother crash outside my wondow in his cage so cant remember where the pics are right now lol (dont worry just a bent cage) ... and yes it's de-restricted with full arrow system on too


cagiva:

I get power up in my red line and a pretty heafty amount too and yes it does kick in at 7.5k which is the useual but now i have a lot of power sitting there ...


I'm just curious to know if my red-zone is really useable power and basically my red-zone would be once my tacho ends ...


Thanks all,

Luke.
____________________
2007 Kawasaki ZX10R :: 1998 Kawasaki ZX-9R - SOLD
1998 Yamaha FZS600 Fazer - SOLD :: 1994 Aprilia Pegaso 125 - SOLD

[Finglonga]

[cagiva gezzer]

We're on a bout strokers, so it should be the peak power point.
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"because one stroke isnt enough and four strokes waste two"

[alien.46.uk]

Is there any way i can test my red zone really is my red zone or if it's useable revvs instead of being "Emergency Revvs" ?

If so, i have a lot more running that i thought ...
____________________
2007 Kawasaki ZX10R :: 1998 Kawasaki ZX-9R - SOLD
1998 Yamaha FZS600 Fazer - SOLD :: 1994 Aprilia Pegaso 125 - SOLD

[Kickstart]

Hi

No, red line is about where it is safe to rev the engine to, although they might be tuned to produce peak power around there.

Rotax 123 engined RS125 has the red line at 10750rpm.

All the best

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

[alien.46.uk]

Ah bugger, so no more revvs for me to play with ...

I will admit now that today for one time only i took her to 11k down to a complete **** in a V8 powered off-road cage who was some what disapointed by their vehicle ...

Anyway, the reason is that i was at 11k without knowing it as once in the power it rocketed and even at 11k it relly felt like it had some punch left, my PV is working where it should be but i seem to be getting some mysterious power up there.

Also noticed this engine sounds very different to the old one, almost sounds like a supercharger kinda hiss in low revvs and sounds like there enough belt comming out the exhaust to send me verticle and vibrates like mad when in higher revvs ... It feels and sounds quite different to the old engine.

Anyway, that wont be happening again especially whilst finishing the run-in, thanks for all your help everyone, has been quite an ineresting theory ...

Now if only i can get my hands on a Rolling RS125, i think this is a little more grunty than most, lol ...


Cheers,

Luke.
____________________
2007 Kawasaki ZX10R :: 1998 Kawasaki ZX-9R - SOLD
1998 Yamaha FZS600 Fazer - SOLD :: 1994 Aprilia Pegaso 125 - SOLD

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