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General Category => General Discussion => Topic started by: spencer_spencer on March 19, 2025, 12:37:37 PM

Title: V7 850 engine warning light flash at high speed
Post by: spencer_spencer on March 19, 2025, 12:37:37 PM
I’m not usually a “fast” rider, but today I pushed it a little over 80mph and it started sounding really laboured, followed by the engine warning light flashing. I naturally backed the speed off and the light went away and all seemed fine.

I’ve read people have gone 100-120mph on these things and it felt nowhere near getting to those speeds! Could it be restricted in some way? (Bought second hand)

It has Mistrals with the dbkillers out if that is of importance. 
Title: Re: V7 850 engine warning light flash at high speed
Post by: Dirk_S on March 19, 2025, 12:40:05 PM
Was it definitely the engine light? Could it have been the RPM warning light?
Title: Re: V7 850 engine warning light flash at high speed
Post by: Kev m on March 19, 2025, 01:23:02 PM
Was it definitely the engine light? Could it have been the RPM warning light?

Shift light was my first guess too.

Traction control would be second guess.
Title: Re: V7 850 engine warning light flash at high speed
Post by: PeteS on March 19, 2025, 03:26:58 PM
If its like the new V85 its an adjustable red line indicator. I think they come set low when new but you can change the RPM it starts flashing or just ignore it. Page 23,854 in your owners manual.

Pete
Title: Re: V7 850 engine warning light flash at high speed
Post by: red stripeguz on March 19, 2025, 04:02:09 PM
If its like the new V85 its an adjustable red line indicator. I think they come set low when new but you can change the RPM it starts flashing or just ignore it. Page 23,854 in your owners manual.

Pete

V7s are the same. Rev light comes on low during break-in, dealer or owner can set it higher to whatever they want
Title: Re: V7 850 engine warning light flash at high speed
Post by: guzzisteve on March 19, 2025, 04:12:06 PM
https://guzzitek.org/utilisation/pb/850/V7-850_Stone_042022_Util(F).pdf            User Manual
Title: Re: V7 850 engine warning light flash at high speed
Post by: spencer_spencer on March 19, 2025, 04:17:54 PM
Was it definitely the engine light? Could it have been the RPM warning light?

Definitely orange engine light (right side of dash) flashing. Not the “eagle” GEAR SHIFT warning. I have already reprogrammed that to be higher than the original run in mode.
Title: Re: V7 850 engine warning light flash at high speed
Post by: Kev m on March 19, 2025, 05:07:58 PM
Definitely orange engine light (right side of dash) flashing. Not the “eagle” GEAR SHIFT warning. I have already reprogrammed that to be higher than the original run in mode.

Hmmm, ok, then we need more info.

Market?

Any other symptoms?

What gear? 6th?

Level or up/down hill?

Fuel quality? Any chance of water?

Plug wires and caps in good shape?
Title: Re: V7 850 engine warning light flash at high speed
Post by: spencer_spencer on March 20, 2025, 02:17:31 AM
Hmmm, ok, then we need more info.

Market?

Any other symptoms?

What gear? 6th?

Level or up/down hill?

Fuel quality? Any chance of water?

Plug wires and caps in good shape?

No other issues. 6th gear on a level highway. I always use premium E5. Recently had service (new plugs) January.

I’ve done the evap cap mod which got rid of some running issues. Only slight issue is there’s been a bit of a noticeable vacuum when unscrewing the tank lid.
Title: Re: V7 850 engine warning light flash at high speed
Post by: Kev m on March 20, 2025, 05:55:00 AM
No other issues. 6th gear on a level highway. I always use premium E5. Recently had service (new plugs) January.

I’ve done the evap cap mod which got rid of some running issues. Only slight issue is there’s been a bit of a noticeable vacuum when unscrewing the tank lid.

Boom, remove cap and retest.

A tank that's not venting properly could strain pump and starve fuel. It's a longshot but might as well check.

I'm not familiar with the EVAP mod, but I'm skeptical it was a problem in the first place. But I'm a hippy mechanic who's never confirmed an actual problem with that system.