Spark plug reading

Motor Head wrote:

jonnybravo wrote: yes they do say NGK, the comparable ,Autolite, Champion ,etc have diff numbers,
if ur manual says 8's go with it, I've seen people experiment a little with diff numbers but something like a 4 would way off

I think he was referring to the 4's as the 4 cylinder models, his is a twin of course, not a 4 heat range plug.

ooooppppsss :blink:

i dont have a twin but i say Johnybravo's avatar looks like a shaved girl weener sharading as a hamburger!!!

:laugh: :laugh: :laugh:

Patton wrote:

xbmxxx wrote: It is hard to explain. It runs great for a while, and then randomly will start running terrible to the point that it wont accelerate, and then wont idle, and then wont run at all. Let it sit a few hours, and bam it runs fine again.

A classic symptom of too tight valve clearances.

Good Fortune!

+1
Worth checking your valve clearances
If your manual says B8ES then go with it. Tweaking the air fuel mixture might help but from the colour of your plugs I would not think that lean is the cause of the problem you described above.

JR wrote:

Patton wrote:

xbmxxx wrote: It is hard to explain. It runs great for a while, and then randomly will start running terrible to the point that it wont accelerate, and then wont idle, and then wont run at all. Let it sit a few hours, and bam it runs fine again.

A classic symptom of too tight valve clearances.

Good Fortune!

+1
Worth checking your valve clearances
If your manual says B8ES then go with it. Tweaking the air fuel mixture might help but from the colour of your plugs I would not think that lean is the cause of the problem you described above.

nobody said it was, just talking about the plug reading

YUP - looks more like a minor carb or other issue than plugs - Like Mfolks says, the junk gas we are forced to use can confuse plug reading - I use non-ethanol premium in most of my stuff - a bit more cost - but far less fuel system and engine running issues...