R1100gs twin spark

blues_bleu · Nov 26, 2009

hello, wanna check with you guys here...
i have seen it in the forum sometimes back....
but now it just don't seem to be in the picture anymore???

i'm converting my 96" R1100GS into a twin spark.
anyone has any ideal about the wire from the ignition to the main harness.
coz the exisiting one are of 2 wire and the new one is 3 wire.

thanks! :comfort

motobiker · Nov 26, 2009

Mind me asking 'why'?

The twinspark was only developed to deal with emissions laws. (I believe) as far as I can tell it offers no genuine advantage... just extra expense come service time.

So.. I'm very interested to know why you're doing this.

g.s.john · Nov 26, 2009

beat me to it :nenau

sproggy · Nov 26, 2009

Ditto. Seems like a good way to make a good bike potentially less reliable.

elevensies · Nov 26, 2009

cant think why you would bother either

MattW · Nov 26, 2009

Wonder if I could fit servo brakes to mine? :augie

pedro · Nov 26, 2009

Yea

I'm going for the Canbus conversion myself, with one of those new fuel pump controller things too.

bart2181 · Nov 26, 2009

motobiker said:
Mind me asking 'why'?

The twinspark was only developed to deal with emissions laws. (I believe) as far as I can tell it offers no genuine advantage... just extra expense come service time.

So.. I'm very interested to know why you're doing this.

am i right or wrong in saying that the twin spark erradicates the surging problem that some 1100gs,s have

Stewart H · Nov 26, 2009

bart2181 said:
am i right or wrong in saying that the twin spark erradicates the surging problem that some 1100gs,s have

Maybe, the only twin spark upgrades I know of are to enable old airheads to run on unleaded :nenau

.
Stewart

motobiker · Nov 26, 2009

The best way to sort the surging problem is to have the bike properly set up by someone who knows what they're doing.

To be quite honest the idea of converting the bike to a twin spark to cure this seems a little like extreme overkill... just thinking what will need to be done to the bike brings me out in a cold sweat... with absolutely no garantee it will work.

Far easier to fully convert your 'import' to full UK spec. UK exhaust.. cat wiring disconnected. CO pot fitted... and then a proper service.

by 'proper' I mean - steptoed.

Sempione · Nov 26, 2009

My 2000 1150GS is single spark and doesn't have any surging issues.
I could imagine that a good synchronisation is harder to achieve with the assymetrical downpipes of the 1100 than with the symmetrical downpipes of the 1150.

bart2181 said:
am i right or wrong in saying that the twin spark erradicates the surging problem that some 1100gs,s have

motobiker · Nov 26, 2009

Sempione said:
My 2000 1150GS is single spark and doesn't have any surging issues.
I could imagine that a good synchronisation is harder to achieve with the assymetrical downpipes of the 1100 than with the symmetrical downpipes of the 1150.

now THATS a new one!!

The reason your bike doesn't 'surge' is the same reason my current and previous 1100 never surged.

Its properly set-up.

thornley · Nov 26, 2009

He wants to know where the wires go! He has not asked for an opinion on the pros and cons of twin plugging or mentioned surging. If you have the answer to his question help the guy :augie

By the way twin plugging is a superb improvement and well worth the effort on this model :augie

Stewart H · Nov 26, 2009

I can create surging on my bike (97 1100) at will by mal/adjusting my TPS, currently it does not surge at all, its all in the setup, I was trying to improve economy and getting nowhere, in desperation I decided to try a range of TPS voltages, dropping the voltage to 0.345 volts had it surging like a goodun, a return to 0.385 and the surging disappeared.

Stewart

sproggy · Nov 26, 2009

thornley said:
By the way twin plugging is a superb improvement and well worth the effort on this model

Can you explain why it's an improvement and what difference it makes? There are clearly a lot of us who are working on the basis that the twin-spark 1150 didn't run any different from the single spark one so there's little apparent advantage in twin-plugging an 1100.

R1100gs twin spark

blues_bleu

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motobiker

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g.s.john

Getting old aint fer pussies

sproggy

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elevensies

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MattW

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pedro

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bart2181

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Stewart H

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motobiker

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