1150 Spark Plugs (twin)

[essjay]

Quick one...

I have 4 x Autolite 3923 spark plugs that I had for my old 1100GS.

Will these fit all 4 points on the 1150? Mainly asking as BMW recommend 2 sets of different plugs (maybe one set is longer).

 

[Ian J Hartley]

Not if your bike is standard.

The secondary plugs (lower) are smaller than standard with a 12 mm thread. I'm not sure whether the Autolite 3923 are an approved alternative to the standard primary plugs (upper) but if they have a 14mm thread they might fit.

Personally I would go with the manufacturers recommend or some of the good quality alternatives.

 

[Fanum]

Quick one...

I have 4 x Autolite 3923 spark plugs that I had for my old 1100GS.

Will these fit all 4 points on the 1150? Mainly asking as BMW recommend 2 sets of different plugs (maybe one set is longer).

Are you sure you ought to be playing with those spanners?

 

[DrFarkoff]

3923 will do the main plugs

Bosch YR5LDE or NGK DCPR8EKC for the lower ones

 

[essjay]

Are you sure you ought to be playing with those spanners?

Just asking before I get the hammer and make sure they fit!

 

[essjay]

3923 will do the main plugs

Bosch YR5LDE or NGK DCPR8EKC for the lower ones

Cheers, only £2 for the NGK ones on eBay so might pick up a few.

 

[Fanum]

Just asking before I get the hammer and make sure they fit!

Better to ask than not

It was just the bit about "(maybe one set is longer)" that made me giggle

When you take your old plugs out, take a good look at the colour....that can tell you a lot about the way your bike is running.....I have a feeling that the autolites run cooler than the standard OEM plugs or NGK equivalents, so if the old ones are sooty or oily , you may well find that the autolites will make the bike run worse.

 

[STUBBS]

Just asking before I get the hammer and make sure they fit!

make sure its a club hammer before fine adjusting with a sledge hammer