FurryOnTheInside
In Memoriam
I was about to buy a BR7EIX when I stopped myself and went to check that the BR8EIX plug was clearing the piston at TDC, just in case.
(I have just fixed another problem with the ignition but haven't been able to test again. I wasn't really expecting to have two problems that prevent starting!)
I have found that the plug has been hitting my piston.
Squish gap is 0.55mm so it's inside the 0.5-1mm range.
There is a small mark on the piston and the 0.03" plug gap is closed.
I had tested the bike I was able to get the engine to turn over.
So I believe it is only a small amount too long for clearance, but I'm sure it would work best if it didn't reach all the way to the piston so I don't really want to look for a plug indexing washer.
What a waste. Why are MZ Miami recommending such a long plug?
Or did I get the wrong information from somewhere? I am "sure" that information came from them.
What plug do other members use in their MZ heads?
What length/ letter do I really need?
I have a BPR6HIX so I have just put that in. Is that any good?
I think H is the nearest alternative. I don't really know about spark plugs.
Thank you
(I have just fixed another problem with the ignition but haven't been able to test again. I wasn't really expecting to have two problems that prevent starting!)
I have found that the plug has been hitting my piston.
Squish gap is 0.55mm so it's inside the 0.5-1mm range.
There is a small mark on the piston and the 0.03" plug gap is closed.
I had tested the bike I was able to get the engine to turn over.
So I believe it is only a small amount too long for clearance, but I'm sure it would work best if it didn't reach all the way to the piston so I don't really want to look for a plug indexing washer.
What a waste. Why are MZ Miami recommending such a long plug?
Or did I get the wrong information from somewhere? I am "sure" that information came from them.
What plug do other members use in their MZ heads?
What length/ letter do I really need?
I have a BPR6HIX so I have just put that in. Is that any good?
I think H is the nearest alternative. I don't really know about spark plugs.
Thank you
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