2004 Boxercup vibration

[gus]

Keith
Its a carbon fibre air induct which replace the restrictive placky one.Cost a arm and a leg new from australia.Check for sale section,i have one for sale as it happens.
gus

[boxerpan]

A lot has to do with much 'feel' you get from the bike,mines like chalk and cheese between Optimax and anything else,but haveing said that so's my Tiger,when we went to NI a few weeks back filled it full of normal and regretted it within minutes of rideing it,found it even more pronouced when out on the motorway.

Lloyd reckons he can't tell the difference either,but he's more insulated than me!!!

There is no point using Shell Optrex, Winger is delusional in this regard

[boxerpan]

............ took it back to S/port shortly after i got it, they assured me it was just a quirk of the bike,........

I have it on good authority that one should not believe a word that Southport m/c say.......

[jltownshend]

Going back to a point in the original post...

With a standard exhaust the vibes were always at their "worst" doing 80 in top gear (ie. just over 4 k revs).

John

[keith750cc]

Thanks Gus,
I will bear it in mind, I have to be careful what I spend on the beemer as I have a proper money sponge, a GT750(kettle) which gets the bulk of my spare readies and now and again I treat the wife LOL.

I'd like to thank all that have responded to both my questions, I feel much better about the vibes and the whine, forum is excellent there is so much info on it.

keith

[winger]

Delusional and thin(ish)!!!

[RoLoo]

...so...vibes around 4100-4300 RPM...

...I changed the filter (to a K&N), changed the induct (into the overpriced big CF thing), run on Shell-V-Power, (I think it is called Optimax in Britain), had a thorough throttle-body-balancing job done. The cat. is gone, and 'we' have an open exhaust..., also with some mods...

...costs a few ; but the 'give-you-the-dead-hands-vibes' are gone...!

[boxerpan]

Delusional and thin(ish)!!!

.........you just think you're thin I can still get in my MEDIUM club shirt

[keith750cc]

After a great ride to those nice people at Motorworks and a bacon butty at Sids Cafe Holmfirth, I finally have the De-Cat pipe, it will be fitted this week and hopefully the vibration will lessen, I have been meaning to get one for months after all the advice from Boxertrix, but sadly my Kettle seized up and after a hefty bill and 5 months to rebuild just never got round to it.

Cheers to all, safe riding

[Cobbster]

Hi Keith,
Iv'e got a standard 11S with the cat still on. It was a bit vibey but after a recent valve check, end float adjustment and throttle body balance its running as smooth as silk. I came back from Holy Island yesterday down the A1 and the bike felt so smooth and responsive in any gear, thanks to the lads at Newsham motorcycles in my home town who did a great job. Their not BMW just a bloody good set of mechanics, the guy who did the job has an 11S too which I think helps and at only £30 its not worth my while buying a twinmax and attempting to do it myself.

Let us know if the Y piece helps and could you tell me what do you do with the probe!? do you remove it or fit it to the new pipe?

Cheers cobbster.

[keith750cc]

Hi Cobbster,
Will do, its going to be later in the week as i'm working nights this week, the guy at motorworks says the lambda probe goes back in the remus pipe, you only leave it out if you chip the bike. Glad yours is a lot smoother now.

atb keith

[sproggy]

Keith, a word of warning - don't expect the Y-piece to go on particularly easily.....IMO it's a pile of cr*p, although I persevered with mine, also from Motorworks.

You'll probably have to shorten the mounting bar so that it fits between the frame rails and you'll also need to loosen the header pipes at the engine end to give enough movement for things to line up, which they won't want to do. Since the header bolts often sieze/shear it's a good idea to start soaking them in penetrating fluid a couple of days before you do the job.

I've spent a good few hours messing with my Remus Y trying to make it what it should have been as supplied (it's been off the bike twice since I fitted it, for 'adjustment' of some sort). You may not have the same trouble but allow plenty of time.

Oh, you should also buy 4 new bolts to attach the Y-piece to the headers as at least some of the originals will get mangled during removal of the cat. While you're at the dealer getting those (special) bolts you'll also need 2 gaskets for the same joints.

[keith750cc]

Cheers for the heads up sproggy, I will have a go when i get up Sunday, unless the sun is shining, then Ill be off out on it.

thanks keith

[smiliebiker]

Keith,

Have the same beast 04 BCR - yes its vibey but now I've done over 10k it is settling down - recent trip to Scotland did 1250miles in a week without a problem, no alterations - bog standard BCR - wonderful - and the differences from the other bikes in the world makes it what it should be - Different!

Keep on riding it does get better and keeps me smiling

[Ade B]

Coming up to 38k, never had a real problem with vibes. Bike is bog stock S. Has a rough patch around 4k.

I actually find the vibes remind me I'm riding a bike with an engine not an electric motor - unlike some fours I've ridden...

Perhaps your holding on too hard

Ade