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Down Tuning a 1125? Possible? ECU Question

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BenFu

Member
Joined
Nov 27, 2011
Messages
23
I'll probably get some flack for asking, but I got a situation where I will get my hands on a slightly used 1125CR for about $3000. I'm a pretty new rider and love that bike (My mom's been storing one for a friend who can't keep it) I know I'm not ready for that bike, so i been researching if it is possible to down-tune the ECM to make it more "forgiving" for a newbie. I seen they have restriction kits for some bikes which is fairly common in Europe I believe. So is it possible to make the 1125cr more like a 650cr? Thanks
 
restricting air flow would be my guess....but doing engine damage will be tough to avoid. your right not a good starter bike but if you keep that in mind and respect the throttle EVERY time you get on the bike....youll be ok.
 
I was worried about damaging the engine. What's the difference if it was tuned for racing or for easy riding? The output and mapping would be affected in both cases.
 
you can get it then trade me for my ULY with a little less power :D

But seriously go for it but really understand the power it has and be careful until you are absolutely comfortable on it. You wont regret it once you get used to riding
 
but racing would be adding more fuel which is what it needs anyway.....downtuning would mean less fuel and air....the epa makes them run as lean anyway....
just be careful.
 
IC, good point. thanks
More than likely, it sounds like it will damage something if I down-tuned the ECU
 
What if you went into the ECU and put a rev limiter on it? I'm not familiar with the rev range of an 1125 but say you put the rev limiter just fast enough to still go highway speeds. It would stop you from being reckless with your speed for sure. Depending on what you set the limit at, it may become challenging to do a wheelie accidentally as well. Just a thought.
 
I'd honestly say try and just pick up a cheap smaller bike to ride for your first 2k miles.

I started riding dirtbikes when i was 6, first street bik was a gs500f, now i have my xb9r, I rode my buddy's 1125 and slightly cracking the throttle whipped the front wheel up, that's alot of power to an untrained hand.........
 
What if you went into the ECU and put a rev limiter on it? I'm not familiar with the rev range of an 1125 but say you put the rev limiter just fast enough to still go highway speeds. It would stop you from being reckless with your speed for sure. Depending on what you set the limit at, it may become challenging to do a wheelie accidentally as well. Just a thought.

Makes sense, I don't know anything about ECU programming. IS there a setting for adjusting the REVs? Would there be any harmful side affects by doing it?
 
You can adjust the rev limiter in 1125's. I don't think it would accomplish your goal, however. It doesn't diminish the amount of power put out by the bike, just stops the powerband prematurely.

I don't want to be a dick, but in reality, you're approaching this all wrong. Buying a high powered motorcycle and trying to make it conform to your experience level is unwise, at best. At worst, it can be a potentially fatal combination. It's just not worth the risk. Tons of members on this board will advocate starting with XB9/12s, or will say that you'll be just fine on an 1125 if you "take it slow". I think this is foolhardy advice. You will dump your bike, you will do stupid stuff...why risk doing it on a bike that you love or that can hammer you into a wall at an exceptionally high rate of speed? Sure, it's not guaranteed to happen, but I think it's best to acknowledge that riding a motorcycle is a very dangerous hobby. I don't know about you, but I like minimizing risks in my life, even for the things that I do that I know are dangerous (SCUBA, motorcycles, paragliding, etc).

Listen to nikfleisch: pick up a super cheap beater bike, learn throttle control, find your weak spots, work on them, then move up to the 1125.
 
My CR is my first bike. Ever. I bought her in later part of June '11. 3600 miles later I have come to respect the throttle as mentioned. It can be quite touchy but you grow into it. Its all about confidence and where your limit is. You need to understand the bike and its abilities as well as your abilities. I know where my limits are now. A far cry better than those first 100 miles.

There have been a few days where I wish I had a smaller bike, perhaps a 500-750cc. Just to see what that feels like, how the bike reacts. Its not an easy feat jumping into something this big. Its a learning curve that is almost vertical.

-J[cool]
 
You could easily find a used xb9 for about the same price as this 1125. I started off with a 2003 xb9r and made some mistakes, also took the safety course (highly recommended). Point is, buy a smaller Buell and not too new, ride around and get familiar with it, you'll make some mistakes but it's better to learn on an xb than an 1125 as they are less forgiving. I loved my xb9r and miss it verry much. But in the end it's up to you to decide, 3000 is a steal for an 1125 but be wise in your decision and ask away as we are all here to help. Goodluck!
 
Just go for it like JWoody did but be careful. As long as you are careful, and do not let the bike try to ride at its ability (which is much more than yours right now), you will be fine. XB12 was my first bike ever and I would not recommend starting with someone small to anyone unless they have the $$ to buy another bike 6 months later when they get bored.
 
I sec what Nick says!I have seen to many people get on a bike and crash because they freak out when the bike pulls hard.LOl its not funny but have seen some funny stuff with friends on dirt bikes .:D Ok if they didnt get hurt it was funny as hell!:D:D
I rode my buddy's 1125 and slightly cracking the throttle whipped the front wheel up, that's alot of power to an untrained hand.........
 
Buy it no matter what and then trade it or sell it and get a better suited bike! You will make money on that deal for sure!
 
Right on everyone. I will look for a trade for an XB9. I'm out in Northern CA if anyone here wants to talk.
 
I second the getting a smaller bike to learn on. Get a cheap dirt bike, learn on it, crash it a few times in the dirt. Sliding on concrete or blacktop sucks. I'd still buy the CR since it's a killer deal, just learn on a smaller bike first.

Once you've gotten comfy on the dirt bike, sell it, and then get a small street bike, ie; ninja 250 or something similar. Ride it for a while to acclimate to street riding. After a few thousand miles of that, you MIGHT be ready to ride the CR.
 
hey mate

i too kinda learned on my 1125cr

i had a gsxr600 for a month before i had my cr, i think the cr is much easier to ride as it feels lighter due to mass centralization,

however if i was to due it again i would buy a cheap big bike and ride that for 400kms to get used to the weight as i dropped my gsxr twice at low speed as i did not respect the weight and remain upright

as for the power in stock form i think the cr power delivery is very linear and manageable (simple really twist more and it takes off)

hope this helps
 
it's not the power or speed that will kill you. it's the sudden and violent stop; you can get yourself killed on any bike.

a CR can be a bike that you learn on. others have done it.
but a rev limiter will not stop it from locking up the rear tire, or keep you from dropping it at a stop light. a throttle stop would be the only way i could think to really keep it tamed. but that's gonna take away half teh fun of riding it, and you will not learn to respect teh throttle.

if i were in your shoes; i'd say go for it, but i'm not you. so you gotta make the call on this one, cheif. what ever bike you end up with, i wish you teh best of luck. the learning curve can be steep.

either way, let us know how it works out for you
 
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