Throttle Body Sych>>>TwinMax Saves the day

ghostrider1964

Edumacated Redneck Adventurer

Posts: 244

Motorbike: R1200GSA-08 and 01 ATK 605 Enduro

Mileage: 45,000 miles

Location: CORYELL CITY, TEXAS

Thanks: 402

Saturday, January 17th 2009, 3:09am

Throttle Body Sych>>>TwinMax Saves the day

Not sure how many here do their own Maintenance on their bikes. I am 150 miles from nearest dealer so I started doing my own maintenance. In addition to setting valves, I purchased a TwinMax from A&S BMW to keep my throttlebodies synched. On recent trip, my GSA had major increase in fuel consumption and started backfiring when letting off the fuel. Motor in general was running rough, about 2600 miles since last service. Most of the ride had been in the dirt. I carry a tool kit on the bike including my Twinmax. After hooking up the Twinmax I learned that one of the throttle adjustment nuts had vibrated loose and had me way out of synch. I reset the the throttle bodies and it was an immediate improvement. The Twinmax is simple to use and accurate. I checked my synch against a manometer later and a dead match. :thumbup:

If you do your own work or plan to the Twinmax is a great tool to have :yes:

2008 R1200 GSA
2001 ATK 605 Enduro
Many others that are gone 8-)

http://www.rollthebonesrally.com/

Peter

Candyman

Posts: 1,060

Motorbike: R1200GS-07

Mileage: 47,000 km

Location: Singapore

Thanks: 1439

Saturday, January 17th 2009, 12:20pm

Without the BMW diagnosis computer you are more ore less only adjusting the throttle cables, I believe.

Peter .PEOPLE WHO HAVE VISIONS SHOULD GO TO SEE THEIR DOCTOR

ghostrider1964

Edumacated Redneck Adventurer

Posts: 244

Motorbike: R1200GSA-08 and 01 ATK 605 Enduro

Mileage: 45,000 miles

Location: CORYELL CITY, TEXAS

Thanks: 402

Friday, January 23rd 2009, 7:31am

True enough but getting them adjusted right makes a big difference in how they perform. I plan on buying a GS911 next to read and clear codes.

2008 R1200 GSA
2001 ATK 605 Enduro
Many others that are gone 8-)

http://www.rollthebonesrally.com/

Peter

Candyman

Posts: 1,060

Motorbike: R1200GS-07

Mileage: 47,000 km

Location: Singapore

Thanks: 1439

Friday, January 23rd 2009, 9:43am

Please let us know how this works.

Peter .PEOPLE WHO HAVE VISIONS SHOULD GO TO SEE THEIR DOCTOR

drmajor

Too Many Roads, Too Little Time

Posts: 61

Motorbike: 255

Location: Charleston, SC

Thanks: 14

Saturday, January 24th 2009, 10:16am

Tuning

I like mercury sticks best still. I seem to be able to "see" them better and a better feel for what's going on.

Seems that on the boxer, everything has to be happy or else. With the TB sync, I do it at about 4300 RPM so the bike runs smoothest at the speed I typically ride.

David Major
Charleston, SC
'02 GSA, '03 LT

ghostrider1964

Edumacated Redneck Adventurer

Posts: 244

Motorbike: R1200GSA-08 and 01 ATK 605 Enduro

Mileage: 45,000 miles

Location: CORYELL CITY, TEXAS

Thanks: 402

Friday, January 30th 2009, 3:33am

On my Vstrom I had built a homemade device using ATF fluid and a yard stick to measure. This is just alot easier and works well even when going down the road. I set mine at 4000 RPM but check above that and minmal difference... 8-)

2008 R1200 GSA
2001 ATK 605 Enduro
Many others that are gone 8-)

http://www.rollthebonesrally.com/

luckyll

Wannabe

Posts: 90

Motorbike: 1982 Yamaha XJ650RJC Seca - 2003 Yamaha XT225 - 2011 Suzuki Burgman 650

Location: Moncton, New Brunswick, Canada

Thanks: 71

Friday, January 30th 2009, 8:13am

Here's some rather detailed instructions how to make your own manometer:
http://obairlann.net/reaper/motorcycle/manometer.html

Only problem, is that this guy uses water in it. Methinks that's a bad idea ?-(

Better to use some sort of heavy oil, that way if some inadvertently gets into the carbs it won't be too big a problem...

Cheers,
Lucky

1-Find road, 2-Aim handlebars, 3-Release clutch and twist throttle, 4-Repeat

ghostrider1964

Edumacated Redneck Adventurer

Posts: 244

Motorbike: R1200GSA-08 and 01 ATK 605 Enduro

Mileage: 45,000 miles

Location: CORYELL CITY, TEXAS

Thanks: 402

Saturday, January 31st 2009, 12:22am

Thats why I used transmission fluid...does not damage the engine if you oops :twink:

Plus it is RED and shows up well against my yardstick...trust me...the Twinmax is much more convenient and no mess if you drop a tube...lol :yes:

2008 R1200 GSA
2001 ATK 605 Enduro
Many others that are gone 8-)

http://www.rollthebonesrally.com/

def

Intermediate

Posts: 17

Motorbike: R1150GS-01

Location: The woods and mountains of Alabama

Thanks: 57

Thursday, May 20th 2010, 8:57am

Quoted from "drmajor"

I like mercury sticks best still. I seem to be able to "see" them better and a better feel for what's going on.

A mercury manometer is the best means for determining TB balance. As you say, you can easily visualize what takes place as you adjust various settings. :thumbsup:

An old man with new ideas...
I know what I am talking about.

def

Intermediate

Posts: 17

Motorbike: R1150GS-01

Location: The woods and mountains of Alabama

Thanks: 57

Thursday, May 20th 2010, 8:59am

Quoted from "ghostrider1964"

The Twinmax is simple to use and accurate. I checked my synch against a manometer later and a dead match. If you do your own work or plan to the Twinmax is a great tool to have

It is interesting that you used the manometer to verify your Twinmax. I use the manometer inasmuch as it is a primary device...no calibration needed.

An old man with new ideas...
I know what I am talking about.