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V7C Idle Problem

ds99 said:
ok, thanks. i don't want to start removing bits from the bike and mailing them across the atlantic!

its disappointing that Guzzi don't address these issues before releasing the bike. I guess that's italian manufacturers for you, if you want more reliability/less 'niggles', go japanese!
Click to expand...

Hi Brian, I saw your post on the Guzzi forum re remapping and reflashing the ecu on your bike. I've bought a V7ii and I'm considering a similar thing after fitting Mistrals and different air filter. What did you do in the end? Like you, I'm reluctant to send my ecu across the Atlantic!
Thanks
Jenko
 
Hi Jenko,
I am not Brian so he may reply....
On my V7 Stone Mk I with single TBI have removed the two lambda sensors and closed the holes in the exhausts with stainless plugs from ebay. I have Mistrals. Standard air filter. Works great - 200 miles today and fueling feels good throughout the range. MPG about 55 (UK gallons).
May not work for all bikes but it has for mine
AndyB
 
andyb said:
Hi Jenko,
I am not Brian so he may reply....
On my V7 Stone Mk I with single TBI have removed the two lambda sensors and closed the holes in the exhausts with stainless plugs from ebay. I have Mistrals. Standard air filter. Works great - 200 miles today and fueling feels good throughout the range. MPG about 55 (UK gallons).
May not work for all bikes but it has for mine
AndyB
Click to expand...

Hi Andy, thanks for the info. Once I get the Mistrals and air filter, I'm going to use a motorcycle tuning specialist to remap and dyno tune the bike. It costs the same as buying a flash kit, with the advantage that the remapping isn't just set as a baseline, it's fine tuned specifically for my bike.
It may well run ok without it, as yours has, but I'd like to just go that extra mile. I've been riding for over 30 years, and this is my first brand new bike! Ive just sold another of my bikes, so the funding is there to use, and I thought "sod it, I'm going to spend the cash on what I want" Can't take it with you!
Plus, my bike has that annoying problem of stalling within the first couple of minutes after start up, and this tuning will hopefully sort that out.
 
Hi Jenko,
I put mine on a local rolling road to check it with the Mistrals and with and without lambdas. Slightly more power without the lambdas. And much smoother running...which I knew from riding it..

You may not need to go to a specialist - worth trying the bike with the lamdas unplugged first. I only takes a few minutes to unplug the connectors under the side panels. Doing so will richen the bottom end so may remove the cold stall problem.....assuming you have the latest MG map in the ECU??? If not, get your dealer to update it.

It might be worth fitting the Mistrals and unplugging the lambdas (it will then be the same as my bike) and riding it..........then later changing the air filter. It may be that changing the air filter will result in you needing a new map - which could be a lot of work. At that point it would probably be best to get a map / ECU reflash from Todd as his work is well proven.

Or stick with no lambdas and the original air filter......

Do report back how things go as this is all a learning curve.....I was bought up on carbs and this is my first brand new bike for about 25 years so in a similar situation to you.

AndyB
 
Hi Andy,
I'm sure that Todds stuff is well proven, but my IT skills are also proven - proven to be crap! Which is why I'm not going down that route. And by the time I've posted my ecu across the Atlantic and back, summer will be over. And the cost of all that will only be the same as going to a local centre, unfortunately.
So, I think that the easiest route will be the local route.
I'm reluctant to just disconnect the lambda saensors, as I won't know what's happening to the engine.
Thanks for the advice though, and I'll update on here how it goes.
Jenko
 
Jenko said:
Hi Andy,
I'm sure that Todds stuff is well proven, but my IT skills are also proven - proven to be crap! Which is why I'm not going down that route. And by the time I've posted my ecu across the Atlantic and back, summer will be over. And the cost of all that will only be the same as going to a local centre, unfortunately.
So, I think that the easiest route will be the local route.
I'm reluctant to just disconnect the lambda saensors, as I won't know what's happening to the engine.
Thanks for the advice though, and I'll update on here how it goes.
Jenko
Click to expand...


I think Todd can just send you the programming box. It should be pretty straight forward. Once you have the box then any additional changes, if needed, can be handles by sending you a map electronically. I suggest you contact Todd direct for details.
 
Hi Jenko.
You don't have to post Todd the ECU now - he has a different system - so he posts you what is effectively an interface so you can download his maps to the ECU. Any 10 year old kid can do it - but probably not me either!

When I put my bike on the rolling road the guy there wanted to sell me a remap but he could not find a program to use......so could not do it. And to be honest I would have not been happy letting him do it as he obviously had no experience of MGs.

Removing the lambdas may seem a crude way of richening the mixture low down but it has worked for me and others.....the lambdas only effect the mixture up to around 3500 / 4000 rpm. Above that the ECU is open circuit and does not use their feedback....and the high rev mixture always felt OK on my bike so no need to change it.

Anyway, good luck with getting it sorted out. However you do it, the bikes are great once the engine is sweet

AndyB
 
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