Author Topic: Spark plug cap?  (Read 3248 times)

Offline Air-Cooled

  • Gaggle Mentor
  • ****
  • Posts: 363
Spark plug cap?
« on: March 14, 2025, 02:21:49 PM »
Do any of the collectors/restorers know which of these caps came with the original V7 Sport?  I'm thinking the shorter one with the brown stem, but not certain.

« Last Edit: March 14, 2025, 02:23:56 PM by Air-Cooled »
1973 Moto Guzzi V7 Sport, 2016 Moto Guzzi Stornello, 2023 Vespa Primavera

Offline guzzisteve

  • Gaggle Hero
  • *****
  • Posts: 12604
  • "Just Ride It"
Re: Spark plug cap?
« Reply #1 on: March 14, 2025, 05:20:37 PM »
One on right is stock Bosch one on left is what someone else was selling. No wire went around it. From my memory.
"Pray through Carlo & your bike shall be healed"
Location: Planet Earth

Online Dukedesmo

  • Gaggle Hero
  • *****
  • Posts: 653
  • Location: England
Re: Spark plug cap?
« Reply #2 on: March 15, 2025, 05:54:54 AM »
Can't help on originality for V7 but Bosch do/did make a brown stemmed version, my LM2 has them fitted and I believe they are the originals as of 1979.


Clearly labelled 'Bosch';



 
Le Mans II
Ducati 916
Ducati M900

Online Moparnut72

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • *
  • Posts: 3152
  • Location: Quincy California
Re: Spark plug cap?
« Reply #3 on: March 15, 2025, 07:13:01 AM »
Those look like the stock ones that were on my 1970 R75/5. Might be able to get them from a BMW dealer. BMW is pretty good about stocking old parts.
kk
Mopar or Nocar
Current Bike:
2026 V7 850 Special
1976 T3 disaster

Taking new riders for a spin:
2023 V100 Navale
2019 V7lll Special
2016 Audace
MGNOC #24053
Amiga computer shop owner: "Americans are great consumers but terrible shoppers".

Offline Air-Cooled

  • Gaggle Mentor
  • ****
  • Posts: 363
Re: Spark plug cap?
« Reply #4 on: March 15, 2025, 11:30:28 AM »
Thanks guys!  Both the caps I showed in the original post are stamped Bosch. I'm gonna guess that the orange stemmed ones were for the later Lemans series, and the ones with the shorter brown stem were V7 Sport. Will be interested to hear what Atietam Classics thinks. 

« Last Edit: March 15, 2025, 11:37:07 AM by Air-Cooled »
1973 Moto Guzzi V7 Sport, 2016 Moto Guzzi Stornello, 2023 Vespa Primavera

Online Antietam Classic Cycle

  • Gaggle Hero
  • *****
  • Posts: 14937
  • Happily stuck in the past.
    • Antietam Classic Cycle
  • Location: Rohrersville, Maryland
Re: Spark plug cap?
« Reply #5 on: March 15, 2025, 12:08:15 PM »
Will be interested to hear what >Antietam Classic Cycle< thinks. 

I don't think anything. I've used what works (NGK LB05F) vs. what was correct, on the V7 Sports I've restored. I never liked those metal shielded caps, every Guzzi I ever had with them on would misfire in the rain.

MG Cycle offers these: https://www.mgcycle.com/index.php?main_page=product_info&cPath=37_157&products_id=3004
Charlie

Online DoubleGuzzi

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • Posts: 594
  • '19 V7III CS; '79 V50; (Triumph S400)
  • Location: UK
Re: Spark plug cap?
« Reply #6 on: March 15, 2025, 12:35:49 PM »
.. misfire in the rain.
First thing that I thought and a case of functionality over authenticity. Some things are better left in the past?  :huh:
(Fine for a show bike that is trailered everywhere - what a waste.)
« Last Edit: March 15, 2025, 12:38:31 PM by DoubleGuzzi »
Nearly natural progression..
Past: SS50, Z200, Z250B, Z400J, (H100), GT750, K100, ZR1100, 900 Trident, 955 Sprint ST, (ZR550, M600), 900 ST, (B750).
Present: V7III CS, (V50II).

Offline Air-Cooled

  • Gaggle Mentor
  • ****
  • Posts: 363
Re: Spark plug cap?
« Reply #7 on: March 15, 2025, 01:30:35 PM »
I'm using the V7 Sport more as a show piece rather than to ride. It has about 9,000 miles on it, so functionality is not my primary goal. I ride my Stornello, and hope to get a v85TT this Fall.  The photos below appear to show the V7 Sport with the shorter brown stem.



« Last Edit: March 15, 2025, 01:42:28 PM by Air-Cooled »
1973 Moto Guzzi V7 Sport, 2016 Moto Guzzi Stornello, 2023 Vespa Primavera

Offline John A

  • Gaggle Hero
  • *****
  • *
  • *
  • Posts: 5364
  • No way to slow down...
  • Location: Hager city ,western WI
Re: Spark plug cap?
« Reply #8 on: March 16, 2025, 02:15:11 AM »
I thought they used Marelli plug caps, the brown ones.
John
MGNOC L-471
It is easier to fool people than it is to convince them that they have been fooled-Mark Twain
99 Bassa, sidecar
02 Stone
84 V65C
15 F3S Spyder

Offline Air-Cooled

  • Gaggle Mentor
  • ****
  • Posts: 363
Re: Spark plug cap?
« Reply #9 on: March 28, 2025, 07:23:07 PM »
Here it is with OEM plug caps in place.


how to upload pictures on internet
1973 Moto Guzzi V7 Sport, 2016 Moto Guzzi Stornello, 2023 Vespa Primavera

Offline Scout63

  • Gaggle Hero
  • *****
  • *
  • *
  • *
  • *
  • Posts: 2692
  • Location: Orleans, MA USA
Re: Spark plug cap?
« Reply #10 on: March 28, 2025, 10:25:24 PM »
Beautiful. I’m a fan of NGK caps but in your case the original caps seem right. 
Ben Zehnder - Orleans, MA USA

***Wildguzzi Official Logo High Quality 5 Color Window Decals Back In Stock***
Shipping in USA Only. Awesome quality. Back by popular demand. All proceeds go back into the forum.
Best quality vinyl available today. Easy application.
Advertise Here
 

***Wildguzzi Official Logo High Quality 5 Color Window Decals Back In Stock***
Shipping in USA Only. Awesome quality. Back by popular demand. All proceeds go back into the forum.
Best quality vinyl available today. Easy application.
Advertise Here