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V7 850 my first impressions

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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 2022 at 11:55
He's still working, somewhere near Leatherhead in Surrey.
Brian.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote R100CS Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 2022 at 17:13
Glad my V7iii has a conventional headlight. That fits the '80 style it is dressed.
1st R100CS flattened by a truck
2nd R1150R modified
3rd V7iii GREEN
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red leader one View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote red leader one Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 2022 at 21:15
Originally posted by Brian UK Brian UK wrote:

He's still working, somewhere near Leatherhead in Surrey.


Thats good. Ta
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TooJuicy Quote  Post ReplyReply Direct Link To This Post Posted: 29 Aug 2022 at 22:08
Originally posted by red leader one red leader one wrote:

Originally posted by Brian UK Brian UK wrote:

He's still working, somewhere near Leatherhead in Surrey.


Thats good. Ta

Baldrick serviced & fettled my 1200S a few months ago. Cracking service, top man,  best money I spent on the bike.  All round nicer to ride.

Tony
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy M Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2022 at 18:13
I've just finished my first home service.

All pretty easy and the manual is accurate for once. The mix of torx and Allen heads is marginally annoying but if that's the extent of it I'll manage.

One thing worth knowing IMHO. The plug change interval isn't some get-rich-quick scheme to replace stuff with horses heads and violin cases.



The rust is marginally annoying for something 11 months old, but that's easy to prevent.

The plugs themselves are tiny, more like a central heating igniter than the sort of thing you find in 70's bikes. The wire like central electrode is genuinely worn. I'm thinking the accurate single point of ignition is required for the Euro 5 stuff. I wasn't going to bother changing them, but having seen what came out I just ordered a pair. Just having a sit down now to get over the price. I'd have a snifter to settle my nerves, but aren't sure I can afford one Cry

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Speciality Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2022 at 08:26
Iridium plugs are expensive. The surprising thing to me when I first bought my Special is how soon they are scheduled for replacement. Usually the trade-off with iridium plugs compared to “ordinary” ones is their long life, partially offsetting the additional expense. On most modern vehicles they are often buried deep under all sorts of clutter, making access difficult, which l assume is one of the reasons for installing iridium plugs. In the case of the current V7 models it seems that neither is true; while having easy(ish) access they need changing relatively often. Only Moto Guzzi…..😊

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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2022 at 09:22
What is the replacement schedule for this model?
On the twin plugged CARC models, the inner plug lasts twice as long at 12k. Still far less than people like Maserati say for their engines with the identical plug - 24k.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Speciality Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2022 at 10:00
The maintenance schedule calls for replacement of plugs every 6,000 miles (roughly as it set at 10,000kms). I’ve never had any bike with iridium plugs that need changing at such low intervals. I guess it’s because the E5 engine is probably at or close to the limit of what’s possible with a large capacity air cooled motor under current emissions regs. Even RE seem to be moving towards liquid cooling for their rumoured next single of 450cc…
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2022 at 13:36
I wouldn't assume it's anything as complex, more likely they haven't taken into account the different plugs. This is Guzzi after all.
Brian.

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Andy M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy M Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2022 at 14:26
Given the iridium ones are well and truly ****** after 6000 miles I'm wondering if there is a non-iridium version. Change at 3000 and if they cost less than half you are ahead.

Edit to add- Sv650 plugs will fit and cost about a quarter of the price if the ones I've found are genuine. Next question then is is saving £45 a year worth the risk they are knock-offs? 

Andy 


Edited by Andy M - 12 Sep 2022 at 14:40
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andyb Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2022 at 12:22
The Champion web site says that if an engine has iridium plugs from new then a change to copper or platinum plugs may give a loss of performance.
I seem to think that iridium plugs run with a larger gap than traditional plugs?  In which case your original plugs may not be as worn as they look.  On a different engine type I know standard plugs are 0.025” and iridium are 0,035”.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Speciality Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2022 at 13:26
I can’t see M-G over-speccing a bike that is built to a price. They probably do need iridium plugs. Whether or not they are genuine or came with a bulk buy of rear brake calipers made in the PRC I wouldn’t care to speculate…….😊
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy M Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2022 at 15:53
Originally posted by Andyb Andyb wrote:

In which case your original plugs may not be as worn as they look.  


The gap is fine. The wear is pitting on both electrodes under the soot and a ceramic the colour of which I last saw on the M-i-L's 50 year old gas fire. Use them too long and I'd expect a bit of electrode to drop off when pitting and vibration finally got their way. 

One consideration is that they may not be genuine. They have a number on the hex, but any Chinese spiv could add that. The other clues are worn away. The paperwork says the dealer changed them at 600 miles, so maybe they got conned. 

They are now changed, so give it another 6000 miles and we'll see what a pre-checked pair turn out like.

Andy 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jerry atric Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2022 at 16:43
Could it be that the mechanic at the dealers just 'penned up' the plug change and they've actually done twice that mileage?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BondEquipe Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2022 at 22:53
Originally posted by Jerry atric Jerry atric wrote:

Could it be that the mechanic at the dealers just 'penned up' the plug change and they've actually done twice that mileage?


 
Noooo, surely they would never do that  .  .  .  Wink
Stephen
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