miller12083

Having problems with stoppies brakes suck and i can not get the back end to come up. Will changing the master help me and will a set of 1000rr front calipers help or will they even bolt up. It is stock f4i master and brakes.

CRA$H AZ

if you can get the wheel to lock its not in the brakes......stock f4i forks suck......use a thicker fork oil like 15 weight and they should be a little easier....alot of it is in finesse i have trouble too but others don't.....a sticky tire makes a big difference, pilot powers are great. and drop your air pressure a bit.

bojangles

flush your master and rebuild the calipers.

da Liks

the brakes dont suck, the forks dont suck..its just not usd and not that stiff with the STOCK oil in em..

miller12083

I have changed the oil to 15w would bad fluid and old pads have anything to do with it. To me it feels like with as hard as i am pulling the brakes it should lock up but it doesn't if i have any speed built up. I can pull them with the same pressure when going slow and it comes right up.

CRA$H AZ

yeah i agree i was just saying.....its the oil really not the forks.

if you can't get lock up at higher speeds....yeah check your pads, flush the system, refill, and bleed properly.

most likely you shouldn't need a new master.

have someone you know who can roll stoppies really good try em on your bike and see if they have the same problem, if they don't then you know its just rider and you just need practice.

it's hard to pinpoint without looking over it.

miller12083

Yeah i have had someone who could roll stoppies try out my bike could not get the back tire off the ground so i know it is the bike.

kjtw73

One thing that you might want to check (and I saw this mentioned briefly already) is that your calipers are operating correctly. I read somewhere (I believe that it was on SL) that the front calipers on the F4i's like to get dirty...this caused me some major headaches for a bit. I broke down both calipers and found that all but one of the pistons were frozen due to dirt and crud. Cleaned them up...never better.

So, if you brake pull isn't very hard (or is even soft), I would check that, bleed the brakes and, what the hell, while you are at it throw some new pads on there. That is what I did and it help me out a lot! There might be issues with the forks but this will help with any problems you might have with the actual brakes.

Towlieee

Are your fork seals good?

If they ever blew out, and you got fork oil on your brake pads, they are RUINED




A stock f4i front end is perfectly fine, I woudl'nt change a thing tell you can roll 300+

miller12083

The fork seals since i have owned it have never leaked but i bought it 2 years ago. It has a salvaged title so who knows what really happened to it in the past

da Liks

+1


and +1 but it needs a lil tweaking..

50slut

+1000