Topica Loopframe_Guzzi Archive
 

Subject: RE: Ambo spark plug question

Author: brian c

Date: Mar 11, 2005, 8:12 AM

Post ID: 1718528508


Thanks Greg- thought it was a little nutty- will stick with the 3/4"
reach BP6ES.




Greg Bender wrote:
 
Hi Brian,

I spent some time on the phone with NGK recently asking just this
question. In the end, I think it is a mistake on their end since they
recommend only 3/4" reach for the V7 and Eldo models. I'm sure your bike

will run just fine with either one, but the 3/4" reach is probably
preferred because it puts the spark closer to the middle of the
combustion chamber. Also, NGK recommends a cooler plug (a 7 on their
scale) with a gap of .028 for the V7 and Ambo and a hotter plug (a 6 on
their scale) with a gap of .025 for the Eldo. But, when I try cross
references from the Guzzi books, the nearest I can come to is that Guzzi

recommends the BP6ES with a gap of .023 for all loops - this is what I
use on my Ambo. Hope this helps - but it really just muddies the waters
more.

brian c wrote:
 
I searched the archived messages and didn't see this come up- I went to
get some plugs for an ambo i am working on, and I have used the ngk
BP6ES in the past- they didn't have them- looked at the cross reference
and there were two- for 3/4" reach and 1/2" reach (and this was a
specific option for Moto Guzzi 750cc Ambassador in the plug book)- I
don't have any old plugs to compare- anybody know why there are two
available and what they aare applicable to?

Thanks,

Brian

near Berkeley, CA
'72 Eldo
'74 Eldo
'95 1100sport
'73 v7sport project



Regards,

Greg Bender
1971 Ambassador
2000 Quota
http://www.thisoldtractor.com/gtbender



near Berkeley, CA
'72 Eldo
'74 Eldo
'95 1100sport
'73 v7sport project

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