Author Topic: V7 850 needs valve adjustment  (Read 5870 times)

Online MikeP996

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V7 850 needs valve adjustment
« on: October 20, 2025, 04:53:24 AM »
Or, at least it seems so to me.  A few days ago I noticed the right-side cylinder was a bit more "clattery" than the left side.

The bike was serviced by a shop last year (previous owner) but I don't know what they actually did and I've run it pretty hard since I bought it a couple of months ago - regularly running it to the red line to see what the bike can really do as opposed to riding in a "gentlemanly" manner as many internet sites seem to catagorize the bike (incorrectly, IMO).  I like to let my internal hooligan out occasionally and I find the bike can do that quite well!  OR, it can trundle along very comfortably as an "old guy's motorcycle. ;)

Anyway, I'll check/adjust the valves and hope I don't find a broken rocker arm bridge like one of the influencer sites did on their V7 850 some months ago!!!

2021 Moto Guzzi V7 850 Special (UK)
1976 Honda CB400F (UK)
2017 BMW R1200RS (TX)
'73 Norton Commando (Mexico
2015 BMW R9T (Mexico)
(Wife's bikes:
2015 Ducati Diavel (TX)
2019 Honda Africa Twin  (Mexico)
2021 Honda NC750  (UK)

Offline guzzisteve

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Re: V7 850 needs valve adjustment
« Reply #1 on: October 20, 2025, 06:32:35 AM »
Pop the covers and have at it.
"Pray through Carlo & your bike shall be healed"
Location: Planet Earth

Online MikeP996

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Re: V7 850 needs valve adjustment
« Reply #2 on: October 21, 2025, 08:38:52 AM »
Walked to the garage to do the valve adjustment.  Our garage (actually a parking slot in an apartment building underground garage is about 3/4 mile from our house.  So I have to carry whatever I need to do maintenance back/forth.  SO...I arrived at the garage, set my (HEAVY) tool backpack down and my folding stool and started work.  Pulled the right side valve cover and then discovered that I did not have the correct spark plug socket!!!  So put the valve cover back on, loaded up my stuff and walked home!  :(  Oh well, at least I found that the right side rocker arm bridge was perfectly OK!  So the valve adjustment is delayed until I get the correct socket!!  :(

The Guzzi is the only bike I own that takes the smaller hex sparkplugs.  It didn't occur to me that it might be different than the others.  Well, you know what they say about "ASSumptions!"  ;)
2021 Moto Guzzi V7 850 Special (UK)
1976 Honda CB400F (UK)
2017 BMW R1200RS (TX)
'73 Norton Commando (Mexico
2015 BMW R9T (Mexico)
(Wife's bikes:
2015 Ducati Diavel (TX)
2019 Honda Africa Twin  (Mexico)
2021 Honda NC750  (UK)

Online MikeP996

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  • Location: UK/USA
Re: V7 850 needs valve adjustment
« Reply #3 on: October 22, 2025, 04:22:39 AM »
Valves all had excessive clearance with the right side more than the left.  Since, per receipt, a service was done by a shop at 6200 miles (it had 6800 when I bought it from the previous owner), it makes me wonder about the shop!  Oh well, just verifies the old saying - "If you want something done right, do it yourself!"

Much quieter now with valves at spec clearance!  :)
2021 Moto Guzzi V7 850 Special (UK)
1976 Honda CB400F (UK)
2017 BMW R1200RS (TX)
'73 Norton Commando (Mexico
2015 BMW R9T (Mexico)
(Wife's bikes:
2015 Ducati Diavel (TX)
2019 Honda Africa Twin  (Mexico)
2021 Honda NC750  (UK)

Offline guzzisteve

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Re: V7 850 needs valve adjustment
« Reply #4 on: October 22, 2025, 05:57:46 AM »
Service to many is change oil, nothing done on what you can't see.
"Pray through Carlo & your bike shall be healed"
Location: Planet Earth

Offline guzziart

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Re: V7 850 needs valve adjustment
« Reply #5 on: October 22, 2025, 07:15:43 AM »
Pulled the right side valve cover and then discovered that I did not have the correct spark plug socket!!!  So put the valve cover back on, loaded up my stuff and walked home!  The Guzzi is the only bike I own that takes the smaller hex sparkplugs.

These days I don't even walk the trash dumpster down to the street on collection day, I hook the can to to an old atv to do the 700' round trip twice.  Also, my Travel is my only ice with small spark plugs too.  And, I plan on doing the valve clearance check on that in the next month or so, it will be my first experience with popping off the valve covers on that bike.  I don't anticipate any surprises.  Good luck with yours!

10/24/25 Update: I did my Travel today, no surprises, left intake valve was tight, the others were to spec.

« Last Edit: October 24, 2025, 03:35:30 PM by guzziart »
'66 CA78, '72 CL350, '72 Eldo '87 LMIVSE, '91 CT70, '08 Wing, '23 v85 Travel

Offline Moparnut72

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Re: V7 850 needs valve adjustment
« Reply #6 on: October 22, 2025, 09:02:40 AM »
I adjusted the valves a few days ago on my new '26 V7. I checked the manual to see what was recommended. .04 and .06. MY older V73 was .06 and .08. Guys here always said do 4 & 6, did the factory listen to them?  :wink: The right side exhaust was a tickle tight, 500 miles.
kk
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2019 V7lll Special
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