On my quest for weatherproofing im now at the master cylinder....Theres nothing wrong with it itself but the brake line going to it is starting to look ropey (the ends anyway) so I thought if im going to change the line (currently en route) then I may as well do the master cylinder. The oberon one makes the claim that when fitted the clutch is lighter (yey for that). Ive not been able to find any distinctive reviews apart from the odd post from people saying "theyre good" So, when its fitted ill post back but it may be a few days up to a week as none of the bits are in my possession yet. Its primarily a red bike so I thought id get a blue one.
Ah....oberon stuff - machined beauty at its best.... Should, hopefully have the hoses by the end of the day....
Well - I couldn't wait any longer....when mate's are getting you stuff cheap you cant complain so I thought id fit it anyway...give me an excuse to do it again.... So, for anyone that's not done this before I found this to be one of the easiest hydraulic bleed jobs ever....took about 45 mins from start to finish....there it is unbolted and removed...cleaned all the scum out from round the front sprocket while it was apart. All the covers back on - more mild steel crap replaced with stainless fittings.... Obviously it jumps to being fitted....very easy really... Mild Steel rubbish removed from this job... 1. Grease the push rod 2. Clean around the area as much as possible (you don't have to but I did...) 3. Bolt the new master cylinder on. 4. Fill the master cylinder up with brake fluid. 5. Bolt the line back on using fresh copper washers (again I expect the old ones would be good but the new unit came with new washers so I did) 6. take a piece of hose from the bleed nipple you see up to the reservoir. 7. Fill up reservoir with brake fluid. 8. undo the nipple half a turn, pull the clutch lever, without letting go, tighten the nipple (not too tight, just a bit more than hand tight) - Oh theres a bleed at the top on the lever as well....that takes a couple of bleed movements to clear air. 9. Let go of the clutch lever slowly and youll see the level go down in the reservoir. 10. As you do this youll start to see air come out of the hose and at the same time pump fluid back into the reservoir (you may have to top up the reservoir a couple of times while the system fills up.) once bolted back together the bleed part took about 20 mins or so.... I appreciate that most on here are pretty technically minded but if someone wants to do this kind of thing and isn't sure then its all above. I think the range of spanners I needed was 8mm, 11mm, 12mm and 14mm. Ill end up doing this all again when the new hoses turn up - probably knowing me tomorrow... Back brake next.... Oh....the most important thing....id say from taking a quick ride out - Id say 30% lighter on the clutch and smoother flowing as well...but then that could be the rod being freshly greased as well....
Lighter and smoother....looks nice too....it'll look even better when I get the red hel line on there....definitely worth it.
With absolute perfect timing I got the hoses yesterday...so ill post up some more pics with the new hose attached...
Thanks. I received my slave cylinder on Monday so hoping to fit at the weekend, did yours bleed easily? Did u need to bleed it at the master cylinder aswell?
yup - dead easy. the way I do it.... 1. disconnect everything, take of the old master cylinder, put on the new one. 2. Fill the master cylinder with brake fluid - then bolt it all back together... 3. Fill up the reservoir at the top on the handlebars. 4. take a hose from the bleed nipple on the master cylinder up to the reservoir (just poke the hose in below the fluid that you put in... 5. open the nipple one half, turn, pull the clutch in, close the nipple, watch the fluid get taken from the reservoir into the system. 6. keep doing this until the clutch lever gets its feeling back....that's it. Dead easy. Ps - sorry just the master cylinder but at the top I literally had to open and pull the clutch lever twice before that was bled...
Just a quick update.....the other day I went up to the end of the road and back again....its been off the road all week as ive been waiting to get it in for MOT as the tax was due at the end of the month and forgot it needed it first one.... So, today, ive ridden it to work (10 miles of A roads, dual carriageways and industrial estates to drive through). Definitely ranks in for me as one of those "why didn't I do this before updates" Gear changes are easier, plus, curiously I haven't found the false neutral up around 4th - 5th. Filtering through traffic usually gives me a bit of a sore forearm from pulling the clutch in and out but that's gone. That however is also due to the dyno'ing a few weeks ago which has sorted out low end fueling problems. Anyway, in summary I highly recommend it.
Hi, so also managed to get around to doing mine today, in short the difference is huge. The bike is so much better for it. One of the best mods I have done for sure!! I didn't even really notice much of an increased travel.
Yup - should come as standard....been enjoying mine all week! as I said before I haven't really found that false neutral....just once I think since ive fitted it....
Good write up comfy , what size piston is the Oberon cylinder , I don't find my hypermotard to bad on the clutch but the 1098 streetfighter gives me serious arm ache ....not got any strength left to spank the monkey !! So you reckon it's a fair bit lighter on the lever action , where did you purchase the cylinder from and what was the costs me old chum
I got mine from a seller on eBay, £92 all in delivered. Think it's a 28mm piston (for the 848 anyway) and MUCH lighter clutch action. I put a cheaper version of this on my 748 years ago but it made the clutch drag, my suspicion is that I hadn't bled it properly as u couldn't at the master cylinder on that there. It's perfect on mine
92 quid as well, got it on eBay, just the same. I think red is 5 quid more though...as I said I reckon about 30 light but smoother as well....trust me...it needs doing....
You've got a streetfighter and a hyper....playing devils advocate here....are they not very close as bikes go....or do you prefer the situp style of bike.... The reason I ask is ive got the hyper and and RSV4 factory. The main reason is theyre polar opposites, which (follow me now) keeps me from changing bikes all the time....as soon as I look at say, an r1 I think, nice but too close to the rsv, same going the other way....seen some really nice ktm supermoto's (used to have a 660) but I think - too close to the hyper....my wife wouldn't agree but its lad's logic...this logic has kept me from buying or wanting to swap bikes for over 2 years now...it works well.. Just wondered as I love the streetfighters - couldn't afford one when I was looking for the hyper but my reasoning was if I got one it would be like the rsv with straight bars...hence, too close...so the fact that they were too expensive for me was the main reason but If I could have afforded one im not so sure whether I would have... Does that sound weird...?
Just ordered one of dem oberon cylinders will give it a go .......but i got the red one coz blue is for gaymo sexuals gigity gig . Yes prefer the sit up sort of bikes now ....backs fekked and all that , all though similar riding position the Sf and Hyper sp are such different rides , the Hyper is easy to ride and user freindly where as the Sf is more demanding and intense and nuts ...... main gripes with the Sf is heavy clutch (will see how that goes with the cylinder ) and frekkin rock hard seat , so looking for a comfier seat next . Ive got a Husaberg 650 aswell .......mega punchy moto mad as hell , makes them 640 ,660, even 690 ktms seem tame , take alot of looking after though there highly strung and like blowing up alot . Heres a picture of my stable from a couple o month ago .......... sold the brand new Husqvarna Nuda and 58 plate Hyper S , down to 3 bikes now lol! Im a bike nut really , im not loaded or anything either just an average paid car mechcanic
coo - I aspire to get that many - id love another supermoto.....had a ktm660 last year....I think another bike would land me in the divorce courts though.... I guess youre on a motortraders policy to insure all that lot then!! Got the oberon cylinder yet??
No, just have the 3 bikes on one policy now , yes got the oberon and fitted it on the SF ......its a bit easier and smoother action but its not a night and day thing , still get arm ache after riding bike for a few hours .....but it looks bling !!
