Re: R90s wont idle after carburetor rebuild

["Frank ---Down Under"]

Scott/Kirk

I wonder whether the problem isn't in the actual carburettor. Assuming that the carburettors was physically removed from the engine could it possibly be that they weren't fully put back in place, resulting in not sealing properly, meaning that more air than required is seeping into the combustion chamber?

As for balancing them, I have seen others using meters and are a very good way of doing it, but in my case having owned the S since new I still prefer to do the final tuning by feel rather by ear.

Frank
Down Under

["Kirk Ratzel"]

I get it, but he is obviously not experienced.

["Dennis Grossman"]

Hi Group
I realize this is a little off base to pure R90S discussion, but cannot
think of a better group to pose this question to.
My wife and I are looking to do some longer trips than we usually take with
the R90S, and I am trying to decide which BMW models would be best for
these rides. We like back roads along and live on the West Coast with
mountains and coasts.
I would love to hear the group thoughts regarding the best models that
would be comfortable for 2-up riding over longer trips and varied
landscapes.
Thanks in advance,
Denny

>

["Harold"]

Dennis, we regularly enjoy traveling on our 2009 R1200GS. It is my personal
preference to not buy another BMW motorcycle. Our 1200GS and R90s have more
miles and years in their future than we do.
Harold

["Frank ---Down Under"]

Denny

Looking at it from a different point and using this example. Over here, February is the hottest month of the year. I have been attending the same event since 1978 in absolutely glorious sunshine and annoying rain. The run is a round trip of 1521 miles from home. The run consists of boring straight freeways, plain secondary flat open road with high speed wide sweepers, an absolutely delightful 30 mile tight winding mountain roads and a further twisting open and tight 90 mile mountain road.

Over this period of time bikes ridden were my R90S, R65LS, K100RS and K1100RS. All the bikes were packed with tents and beer to survive 4 days out in the bush. All bikes satisfactorily did the run without any issues. However being loaded with luggage and consistently averaging 85mph the water cooled K’s were definitely less stressed in such a hot climate. The hottest run was at 118F during the day and 95F just after midnight.

You’re going on a long run facing mountains, acceleration and braking whilst carrying pillion, panniers and luggage. Any engine will have its work cut out for the run. I will not tell you which bike to bye/use, just think of mechanical sympathy.

And don’t forget the bloody postcards.

Cheers mate
Frank
Down Under

["Steve"]

I own all three model year R90S bikes and bought a 2010 R1200GS for two up
riding because of the comfort and safety it provides.

On Mon, Aug 7, 2023, 4:50 PM Dennis Grossman <denny.grossman@gmail.com>
wrote:

> Hi Group
> I realize this is a little off base to pure R90S discussion, but cannot
> think of a better group to pose this question to.
> My wife and I are looking to do some longer trips than we usually take
> with the R90S, and I am trying to decide which BMW models would be best for
> these rides. We like back roads along and live on the West Coast with
> mountains and coasts.
> I would love to hear the group thoughts regarding the best models that
> would be comfortable for 2-up riding over longer trips and varied
> landscapes.
> Thanks in advance,
> Denny
>
>>
>

["James Marciano"]

I have the '75 R90S, '85 K100 (owned since 1987), and 2007 1200 GSA.... I'd
take the GSA for comfort, safety and packing options.

["AC53"]