Fucking hell..........

[The#Doctor#]

Just got back from the a dyno run where my brothers cbr was making 91 hp and mine was making 58.9hp the guy said that my remus gp can was making it run lean and that i needed to get it sorted so have ordered a dynojet kit and a k&n and am getting it fitted and set up on tuesday so i should be back to 90+ hp but it seems that the remus can ive got is SHIT
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CBR125R - CBR600Fy
'140 mph officer thats impossible the bike is 33 bhp restricted'

[GearboxGeezer]

Wow, did you feel like you didnt have as much power when u had that gp can on?

You wait till u get it sorted again, itll be like jumping on a new bike

[Whosthedaddy]

How can a 'sports' exhaust loose nearly 50% of the BHP

How much for Dynojet and K&N? Expensive?
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[instigator]

Did you buy it from him?

Have you never 0-100 raced your brother?

[DucatiEVO]

Never seen a can cause as bad a power loss as that, you sure the bike wasn't down on power before?

You should have noticed a 30 odd bhp loss as soon as you road the bike after fitting the can?

Did you have to use any gasket sealer when you fitted the can, too much of this and you can block the pipe, restricting the flow.
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aKa: Ducky

[dainesefreak]

Surely be cheaper to stick the original can back on??

[Jrod]

That's less than my 400!

[Kickstart]

[Bezzer]

[Kickstart]

Hi

He wasn't too chuffed about it. We did check things on the day to ensure it was a 1200, and also clocks and things to see if it was an import from a dodgy low power market. We were close to swapping the CDI unit with another bike to check that.

All the best

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

[Bendy]

[The#Doctor#]

Well i put the can on it after having an off and bending the old one so wasn't riding the bike for a while so didn't notice although i have noticed that when were going fast ie the other night we were coming down the A1 at about 2-3 in the morning at 120mph and it didn't feel like it had any power after that so thought something might be wrong but the guy said that the air/fuel mix is well out ( don't know what it's measured in but the air/fuel mix should be 13.. and mine is up at 14 - 15 so is running lean) and that this would cause such a huge loss in power and said that he should be able to get the power back with the dyno kit and filter aswell as making it feel alot nicer so hopefully on tuesday i should have a 90+ hp bike back
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CBR125R - CBR600Fy
'140 mph officer thats impossible the bike is 33 bhp restricted'

[The#Doctor#]

[Zimbo]

Nothing wrong with Remus cans, they're one of the better ones.
Get the jetting sorted, but there may well be another problem going on. Valve clearances, fuel filter, air filter, plugs, they all been changed / set? Carbs balanced?

[Kickstart]

[Mr.Everready]

https://homepages.bw.edu/~gwalton/funnies/files/owned.jpg
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the undemocratically unelected mod of the Scottish section

[A J]

I noticed his bike lacking, especially on the motorway the other night as we were cruising at 120mph this was at 2/3am btw and when i accelerated to 130mph to get past this car it looked like he was struggling and when we stopped he said that after 120 there wasnt much power left and i told him that it shoal be pulling hard to 140 then creep up after that.

We had a 30 to 100 race today on the way back and i was about 20metres in front but you could tell that at higher speeds that there was a big difference.

The guy reckoned that it wasnt automatic but a slow decrease in power and since its been winter and he has been doing most of his riding through town it would be difficult to notice.

but the most important thing is that my bike is faster


AJ

[The#Doctor#]

Well just had it's 24000 service where they replaced 2 valves, oil/air filter fluids wheel bearings ........ but will just wait and see after tuesday
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CBR125R - CBR600Fy
'140 mph officer thats impossible the bike is 33 bhp restricted'

[MarJay]

My wolf road legal can sapped the power of my 955i from 115ish bhp to 82 bhp.

I removed the baffle and the DB killer, and back up to 115bhp.
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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.

[DynaMight]

Lets hope it wasnt running lean enough to cause any long lasting engine damage!
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My bikes are at https://www.bikepics.com/members/dynamight/

[The#Doctor#]

It did but my brother had his done aswell and they said that it didn't need anything done to it unless he wanted them to clean up the bottom end, but the night before it wasn't pulling hard from 120mph+ and really felt like there was nothing left where my brothers was so thought something might be up so will just wait and see what happens on tuesday
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CBR125R - CBR600Fy
'140 mph officer thats impossible the bike is 33 bhp restricted'

[R1BROGAN]

you will find your valves will need to bed in if some of them have been changed. but with any after market exhausts you need to jet it correctly, or you will loose power