The BMW GS boxer twin thread

**Padmei** · 24th July 2010, 21:36

My wish list is browing velly big & that's just the basics.
Full stainless steel nuts & bolts set mmmm luverly....

**Pampera** · 24th July 2010, 21:47

Originally Posted by Padmei

Looking thru Motobins at the mo. Not bad pricing. Postage will prob be the killer tho.

I have found Motobins pretty good for non routine parts. Just make certain you pick the "BMW genuine"option when there is a choice. Having said that, based on convenience, I have never bought a service part like a filter from anywhere but a local dealer, but in my case I do have one, a dealer that is.

Folding filters can be used instead of a one piece one, but only if the folding one is the folding version of the straight one for your bike, if you know what I mean! Sounds not the case this time. They fold to go around the awkward corner left by the fairing on RS or RT but are good to use on a naked bike using the same filter arrangement. Not in your case though.

The place to go for carb parts (and a really good carb book) is bing.com. Carb kits have numbers, starting at basic and going up to everything bar the body and top. All the parts for your rebuild come in a line along a plastic sealed strip and even I can do a carb a night, after dinner.
http://www.bingcarburetor.com/

Michael

**Padmei** · 24th July 2010, 22:26

Thanks Michael.
I have so far 8 items including service stuff, throttle cables,diff boots etc & a centre stand & its just tipped $200NZ without shipping. My non genuine BMW filter alone was $40 from a dealer.
Do you think there would be a major difference with gen & non Gen BMW parts? They seem to have a pretty respectable looking site - no chinese looking bits advertised but I knowwhat you mean.

Since I'm putting in an order is there anything anyone recommends buying for peace of mind knowledge it's sitting in the shed? Small bits that is...

**Box'a'bits** · 24th July 2010, 22:39

Originally Posted by Padmei

Thanks Michael.
I have so far 8 items including service stuff, throttle cables,diff boots etc & a centre stand & its just tipped $200NZ without shipping. My non genuine BMW filter alone was $40 from a dealer.
Do you think there would be a major difference with gen & non Gen BMW parts? They seem to have a pretty respectable looking site - no chinese looking bits advertised but I knowwhat you mean.

Since I'm putting in an order is there anything anyone recommends buying for peace of mind knowledge it's sitting in the shed? Small bits that is...

I order all of my stuff via Motobins or Motorworks in the UK. They have both been excellent to deal with. Non genuine is not an issue

**Eddieb** · 24th July 2010, 22:50

R100GS stainless 2 into 1 mid pipe
http://www.trademe.co.nz/Trade-Me-Mo...-305917659.htm

**BMWST?** · 25th July 2010, 00:53

Originally Posted by Padmei

Thanks Michael.
I have so far 8 items including service stuff, throttle cables,diff boots etc & a centre stand & its just tipped $200NZ without shipping. My non genuine BMW filter alone was $40 from a dealer.
Do you think there would be a major difference with gen & non Gen BMW parts? They seem to have a pretty respectable looking site - no chinese looking bits advertised but I knowwhat you mean.

Since I'm putting in an order is there anything anyone recommends buying for peace of mind knowledge it's sitting in the shed? Small bits that is...

about $100 for a clutch cable from dealer

**Eddieb** · 25th July 2010, 09:15

Hi Padmei

Before you place your order pull your carbs apart and check the needle, needle jet and diaphragms for wear.

It may be worth just ordering 2 sets of each anyway. The needles and needle jets are known to wear over ~80,000km and the diaphragms tear over time so it may just be worthwhile replacing all of those or at least ordering spares.

While all this can be done with the carbs in situ it's best to remove them off the bike before you try to take the top off the get at the diaphragms. If you try and remove the cables with the carbs still mounted you end up crimping the cables and it makes it more difficult to balance the carbs accurately, pull the carbs then remove the cables.

You can pull the main jets and needle jets easily with the carbs in place however just by popping the clip off the bottom of the carb and the float bowl just falls off.

Unscrewing the main jet, which I think should be a 150 on those, should allow the main jet holder and needle jet to drop out. Seeing as the bike has been sitting I would expect the little holes around the needle jet to be completely clogged up meaning the fuel won't atomise properly as it enters the carb.

While you are there just confirm what size the main jet is, when I got the 800 it wouldn't go over 100km/h in any gear with any amount of throttle abuse, but was smooth up to that. It turns out it had a US spec main jet fitted into a UK spec motor and due to extra emissions stuff in the US bikes they use hugely different jet sizes. Putting the right size main jet in turned it into a completely different bike.

**Padmei** · 25th July 2010, 09:37

Thanks Eddie.
I think I may pull the carbs out & have a look before putting my order in.

On the motobins site it is a bit confusing sometimes knowing if I'm ordering for the right model as most often it mentions 100GS. As I think, apart from carb jets & internal engine parts, the 80 & 100 are mostly the same I'm taking the parts indicated as 100GS or 'twins after 88' etc that they'll fit the 80.
If their part no had the BMW part no beside them I could cross reference them.

**Eddieb** · 25th July 2010, 09:46

Originally Posted by Padmei

Thanks Eddie.
I think I may pull the carbs out & have a look before putting my order in.

On the motobins site it is a bit confusing sometimes knowing if I'm ordering for the right model as most often it mentions 100GS. As I think, apart from carb jets & internal engine parts, the 80 & 100 are mostly the same I'm taking the parts indicated as 100GS or 'twins after 88' etc that they'll fit the 80.
If their part no had the BMW part no beside them I could cross reference them.

Chassis bits as long as theyear is the same you should be right, do be careful when talking about carb bits. 800's use 36mm carbs, 100's use 40mm carbs so the diaphragms are different sizes for example, except in the US where they all used 36mm carbs. Bear that in mind depending on whether it's a UK or US based site you are ordering from.

**Pampera** · 25th July 2010, 10:55

Originally Posted by Padmei

Thanks Michael.
I have so far 8 items including service stuff, throttle cables,diff boots etc & a centre stand & its just tipped $200NZ without shipping. My non genuine BMW filter alone was $40 from a dealer.
Do you think there would be a major difference with gen & non Gen BMW parts? They seem to have a pretty respectable looking site - no chinese looking bits advertised but I knowwhat you mean.

Since I'm putting in an order is there anything anyone recommends buying for peace of mind knowledge it's sitting in the shed? Small bits that is...

While many aftermarket suppliers may be OK, my personal approach with oil filters is one of caution, you just don't know - and in view of the consequences of a failure versus the small purchase costs saving and small amount of money involved anyway - why not go with OEM. I checked the receipt from last Christmas's oil changes and the OEM filter was $38.50 and only one is needed each year. All it takes is for one to collapse and block....

I still swear by the Bing rebuild kits. Everything in one place, all genuine, right for your bike, cost effective and (depending on the kit selected) everything back to new and good for another 50,000 km. Only takes a couple of hours to fully strip, clean and refurbish a carb and the personal satisfaction is priceless! And their Bing carb book is brilliant. All mail order from US. And they make a special stainless steel fastener kit for the carb tops if you are looking for bling. The hardest bits to replace are the butterfly O rings, I just didn't do these the first few times until I got confident (cocky).

Parts to carry?
A spare carb diaphragm is one. That should guarantee never needing one. Perhaps a spare throttle/choke return spring, keep the old ones after you buy the Bing kit!
Miichael

**Box'a'bits** · 25th July 2010, 11:26

Someone is advertising oil filters on Tardme. Genuine is Mahle or Knecht filters, & then rebranded BMW.

I think the OX36 is all filters with oil coolers. Here is a link for the trader. The trader is into BMWs & I would rate. NZD 26 plus postage

Cheers, Steve

**Padmei** · 25th July 2010, 18:07

Got into stripping down Schmidt this weekend & really enjoyed it.

First of all I am so impressed with how easy it is to get into the guts of this thing. I only had to undo 1 screw to have all the tank,seat & side covers off.
It was interesting seeing what lived where & how it worked.

I found I have a uni filter however it looks like it's seen better days so think I may go back to a paper OEM filter.
Took the LHS carb off & took it apart - pretty straightforward how ever am unsure about taking the floats off as that pin looks pretty bendable - what did you guys use to get it out?
The carbs & air intake were pretty dirty inside as were all the relays & electrics under the tank.

The bike looks like it has been ridden a lot on the beach & not cleaned a lot.

The most daunting thing for me is the electrics. All the components need a good spray & scrub so I guess I'll be redoing all the connections at the same time.

I've been using the BMW R80GS -R100R Repair manual & have to say it is terribly bad. There are references to pics not there & no explanation how things work. I will be internetting for that.

**Pampera** · 25th July 2010, 18:17

[QUOTE=Padmei;1129819728]am unsure about taking the floats off as that pin looks pretty bendable - what did you guys use to get it out?
QUOTE]

A small nail modified into a drift by grinding the point to a flat - but tapered still, so it centred - and a VERY small hammer! Been a while so hazy what it looks like in there but I recall supporting the back of the post that holds the pin before any tapping.

Michael

**That looks like fun** · 26th July 2010, 17:35

Just brought some parts in from Aus and got stung $100.13 in taxes and shit

GST $62.82
Import Transaction Fee $22
GST on Transaction Fee $$2.75
Biosecurity levy $11.11
GST on Levy $1.39

I have brought quite a lot of stuff in from Aus before and have never been hit with all this shit before. Lady on phone never explained why I was this time

She did however tell me I was lucky I brought my parts before the GST Rise