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 vibration at bars and footrests

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jono-9
Montanarolo
Montanarolo


Posts : 18
Join date : 2015-05-11

PostSubject: vibration at bars and footrests    Mon Sep 07, 2015 4:06 am

hi guys, i have a tingling sensation in my hands and feet after about an hours riding at speeds of up to 70 mph, i have added foam grips, and rubber footpeg covers to try to solve this, i fitted an GPR silencer when i got bike, plus i have installed Marks Mistral map, i am considering refitting original exhaust, and asking Mark if he can supply me with his modified standard exhaust map ! i have checked all mountings for tightness, which all seem ok, bike also seems a bit jerky at low speeds,(i have checked valve clearance, and throttle body, and tps !) which may be a slight difference with mistral map, and my exhaust, any thoughts will be most appreciated as i cant ride it like this !
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beetle
GRiSO
GRiSO


Posts : 3982
Join date : 2013-09-30

PostSubject: Re: vibration at bars and footrests    Mon Sep 07, 2015 4:27 am

The 8V will vibe if it's lean. The Mistral map is hardly a lean map, but I've no idea what the GPR is like. Does it have a dB killer?

All else being equal, if you install stock exhaust and remap it and it still vibrates, something ain't right.
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little750
Grignapoco
Grignapoco


Posts : 194
Join date : 2014-05-07
Age : 61

PostSubject: Re: vibration at bars and footrests    Mon Sep 07, 2015 4:55 am

I had vibes on mine until one day filled up at different fuel station, vibes back to normal. Never used original station again it was cheap for a reason, the fuel was shit.
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beetle
GRiSO
GRiSO


Posts : 3982
Join date : 2013-09-30

PostSubject: Re: vibration at bars and footrests    Mon Sep 07, 2015 5:00 am

You might wanna check spark as well. What do the plugs looke like? Any evidence of arcing?
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jono-9
Montanarolo
Montanarolo


Posts : 18
Join date : 2015-05-11

PostSubject: Re: vibration at bars and footrests    Mon Sep 07, 2015 7:23 am

hi mark, thanks for your comments, i will try it with richer mixture, and put new plugs in as well, i do have db fitted ! i seem to have lost original map somewhere on my computer, regards, john.
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beetle
GRiSO
GRiSO


Posts : 3982
Join date : 2013-09-30

PostSubject: Re: vibration at bars and footrests    Mon Sep 07, 2015 7:56 pm

Yes, first thing might be go more positive on the CO trim. Where it at now?
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Oz1200Guzzi
Don Abbondio
Don Abbondio


Posts : 1783
Join date : 2014-03-13
Age : 62

PostSubject: Re: vibration at bars and footrests    Mon Sep 07, 2015 8:19 pm

Check throttle body balance if not done aready
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jono-9
Montanarolo
Montanarolo


Posts : 18
Join date : 2015-05-11

PostSubject: Re: vibration at bars and footrests    Wed Sep 16, 2015 12:51 pm

i would like to give update on vibration, i have removed gpr silencer, and refitted original, and rechecked throttle bodies etc, and put new plugs in, and added marks (beetles) map for standard exhaust, i would like to thank mark for his advice and for sending me several maps, bike is so much better to ride now, with no tingling through hands or feet after two hours riding !!
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sidrat
Sfregiato
Sfregiato


Posts : 415
Join date : 2014-09-22
Age : 56

PostSubject: Re: vibration at bars and footrests    Wed Sep 16, 2015 1:59 pm

Jono-9 sorry to tell you but they vibrate terribly, i will take it off your hands for £5 and save your misery
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jono-9
Montanarolo
Montanarolo


Posts : 18
Join date : 2015-05-11

PostSubject: Re: vibration at bars and footrests    Thu Oct 01, 2015 12:06 pm

thanks for your offer sidrat ! but its much better now, i think i will keep it for a while, it may be worth more than a fiver then ! lol.
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PostSubject: Re: vibration at bars and footrests    Today at 1:52 am

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