Read My Plugs

[Thomasa]

A month or so ago I bought s set of 1-3/8 pipes for my Atlas from Walridge Motors. They are very good quality and fit perfectly. I don't know who he gets them from but he should keep doing that. Last Sunday I rode it 50 mi round trip up to the snow line and the pipes have a hint of straw color just past the first bend. The rest is as new.

I run a B8 in my Matchless G80cs and it always happy if the fuel is good. Rode it today. Sunny, above 50F. Two stream crossings, wet boots. Gas station just got a new dump of 92 Octane non-ethanol premium. Life is good.

 

[acotrel]

If the weather is really cold, the motor should probably give signs that the jetting is lean, in the way it responds to the throttle - it can sometimes start to miss slightly.

 

[norton bob]

I would read those plugs as a tad on the weak side ,and a degree or so over advanced ignition . Ok for our climate in the Uk but a bit risky in hotter climes.

 

[Madnorton]

Considering the additives in fuel these days colour alone is of little value. Why not ride to a facility that has gas analysers that they can slip down each silencer and then run the bike through a rev range - that will give a far better idea and it's quick and easy to do.

 

[baz]

I'd be happy with plugs that colour
They are not white and chalky or black and sooty
As others have said,it's a lot more difficult to judge with today's fuel

 

[Onder]

Much depends on how hard you ride, how far and what the ambient is. If you are really worried
go a range colder. The way speed limits and traffic are now most bikes have to worry about slow
running and poor cooling. Old bikes that is.

 

[acadian]

I would read those plugs as a tad on the weak side ,and a degree or so over advanced ignition . Ok for our climate in the Uk but a bit risky in hotter climes.

Seconded, hard to make out the colour turn on the ground strap but it looks a bit too close to the base ring, double check your timing and perhaps retard a couple degrees