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Hi,

Thanks,

I had a stick coil go before it only effected high speed running. This does seem similar just at the lower rev range. Can a faulty coil affect the running at any speed?

Regards,

Jon

Hi,

Finally got my bike back together and MOT'd after about 7 months off the road.

Only one problem now, its really lumpy at low revs, it fine at higher engine speeds but I'm having to rev it and slip the clutch a lot to pull away.

What/where should I check first?

Thanks,

Jon

Hi All, Latest update, the alternator is a b*****d to remove! I've taken the tank off, unbolted the alternator from the top of the engine and removed the belt and the back of the alternator cover. The frame tubes above the alternator prevent it lifting out from the top. I can either remove the fuel ...

Hi,

The alternator is seized solid so I need to take it of and fix it/get it fixed pretty sure that is what caused all the problems and it will run ok once that is sorted, watch this space!

Regards,

Jon

Hi, Further to my recent post I have established the alternator on my r1200s is well and truly seized. It looks a bit of a pig to get at and I can't even work out how to get the belt off. I can't get a socket on the pulley nut as the front shock is in the way. It appears I need a deep 22mm ring span...

The Battery on this bike is pretty wimpy and it has to turn against the compression and friction of a big twin, so I am not surprised its only turning over a few times before weakening. Fuel can go off pretty quickly and I have heard of it causing issues. I have also heard about water collecting ar...

Hi I'm starting to wonder it the alternator is seized (explains the squeaking sound) and by applying wd40 it allows the belt to slip round the alternator drive pulley allowing the starter to spin the engine fast enough to start but it soon evaporates, the belt grips, and the engine stops again. Is t...

Hi,

Thanks, I have now managed to get the bike running momentarily if I open the throttle fully when starting unfortunately the battery doesn't last that long so I can only have a few attempts before I need to leave it to recharge, think I'm getting some where though.

Jon

Hi, Sorry for the delay I have only just had the time to have a look at the bike other than turning it over every so often with no luck. I've tested each plug they all spark. In fact on both heads with one plug out there is a flash of flame out of the plug hole as the engine turns over. Tried easy s...

Hi,

Thanks,

Think I'll take the plugs put just to check them at the weekend, I'll also open up the airbox and check its all dry.

Will let you know how I get on

Jon

Hi, Thanks for all the advice. I'm leaving the battery on charge and trying to start it each day. Failed again today but it is trying. I pulled out the top coil in the right hand cylinder (uppermost when on the side stand so most likely to collect water) it was bone dry. I have been working all week...

Hi thanks, The battery came with the acid and I filled it myself. I charged it again overnight and tried it still no go although it did fire more than previously. I think its got damp in there somewhere and hopefully will slowly dry out. How many times should a fully charged battery turn the engine ...

Hi, My bike was running fine about six weeks ago and has only recently had a major service. I took it off the road to replace a front wheel bearing. Unfortunately people on ebay who sell R1200S bearing kits don't send you the right parts so it took me six weeks to fit the replacements. During which ...

Hi, Sorry went on Holiday for two weeks so just left the bike. Got my first chance to look at it yesterday. I peeled the tape of the loom from the antenna and sure enough there was a green and brown wire broken in two. I've temporarily bodged it back together until I can get some of the proper fabri...

Hi Rode my R1200S to work today no problem. When I went to leave this afternoon when I turned on the ignition the orange triangle warning light appeared and EWS! Flashed up on the display, the bike wouldn't start. A quick on the spot Google via my phone suggested this is an error with the antenna fo...