The BMW GS boxer twin thread

**JATZ** · 28th February 2010, 10:35

Originally Posted by junkmanjoe

Rode along side this bike,,, its a beast, and one mother tank,,it holds more fuel than my DR safari tank did..

whats this Jatz a maybe BIG for sale......................

JMJ

NO ! the Big will not be for sale, unless somone offers stupid amounts of cash for it

**Padmei** · 28th February 2010, 11:26

What is the tein plug conversion?

**igor** · 28th February 2010, 16:03

hey eddie u want those spokes i got, never heard back from ya igor

**dino3310** · 28th February 2010, 18:05

Originally Posted by JATZ

Actually the BIG is newer and has less k's, wonder if I could get more for it

i got offerd 7k for mine

..... after it went

sorry

**junkmanjoe** · 28th February 2010, 18:08

Originally Posted by dino3310

i got offerd 7k for mine

..... after it went

sorry

Mate, bet that riped ya undies......

JMJ

**dino3310** · 28th February 2010, 18:11

especially now mate

**BMWST?** · 28th February 2010, 18:25

Originally Posted by Padmei

What is the tein plug conversion?

twin spark plugs.Shorter flame path allows higher comp and more advanced ignition and i beleive leaner mixtures

**Box'a'bits** · 28th February 2010, 18:43

Originally Posted by BMWST?

twin spark plugs.Shorter flame path allows higher comp and more advanced ignition and i beleive leaner mixtures

Those benefits are mainly for a worked motor.

For the earlier 9.5:1 motor it gave easier starting, better & smoother running in the lower rev range, better tolerance for lower octane fuels, and potentially lower engine temps. Or at least that why I did mine.

For Africa bikes, it gave in built redundancies (twin coil pack, 4 spark plug leads, 4 spark plugs).

Also higher cost, and a bucket load of complexity to set up properly.

Steve

**Padmei** · 28th February 2010, 19:10

thanks. I guess a new head is required?

**NordieBoy** · 28th February 2010, 19:45

Originally Posted by BMWST?

twin spark plugs.Shorter flame path allows higher comp and more advanced ignition and i beleive leaner mixtures

Main thing is it's trying for a complete fuel burn in a large cylinder.

That's why the big race singles use it too.

**BMWST?** · 28th February 2010, 21:16

Originally Posted by Padmei

thanks. I guess a new head is required?

new head not required,just drill and tap existing head(s).

**BMWST?** · 28th February 2010, 21:17

Originally Posted by Padmei

thanks. I guess a new head is required?

new head not required,just drill and tap existing head(s).

**Padmei** · 28th February 2010, 21:25

really? you having me on?

**Eddieb** · 28th February 2010, 21:40

Originally Posted by Padmei

really? you having me on?

Nope, it's normally done with the original donor heads.

**BMWST?** · 28th February 2010, 21:46

Originally Posted by Eddieb

Nope, it's normally done with the original donor heads.

there is a guy in welly who used to do it.I dont know if he still does.there was a discussion on the kiwi air heads site about it.

Thread: The BMW GS boxer twin thread

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