V7 Classic, unreliable idle. |
Post Reply | Page 123> |
Author | |
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
Posted: 21 Mar 2016 at 17:38 |
My V7 Classic is not dependable regarding idling, engine cold or hot.
It will often just stumble to a stall, but at other times idles nicely at about 1000 rpm. The TPS and software has been set and updated by Paul at Corsa and no error codes show up. If I just move the starting "choke" lever even a very tiny amount the problem disappears, so I think it would be solved by quickening up the slow running speed by about 50 rpm. Paul said it is OK to do as it is not a real choke but only a throttle movement device. Is it possible to do this properly by adjusting something? All the best, David.
|
|
Ken-Guzzibear
Moderator Group Joined: 13 May 2014 Location: Sileby Leics Status: Offline Points: 9454 |
Post Options
Thanks(0)
|
Thing is once it is hot is it all good? if so would it then idle too quick once hot? Had similar on my V11 Le Mans , I found by a tiny tweak on the throttle adjuster , which on the V11 was a round knob on the left of the bike all it did was take up slack , did the job a wee bit too much and the idle when hot was too high , BUT Paul really does know his stuff far better than I
|
|
The Older i Get, The Better I Was
|
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
Hi Ken, if anything it is worse when hot than when cold. It makes riding it a bit nerve-wracking as I have to concentrate on keeping it going when I ought to be thinking about positioning, speed, gear etc. I have tried changing plugs but no real difference. I thought that with modern bikes there was no need to keep blipping the throttle as in the days of yore!
David. |
|
Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
Post Options
Thanks(0)
|
This has come up before...
http://www.guzziriders.org/new-bikedies-on-idle_topic3843.html?KW=won%27%27t+idle ... which as yet is still unresolved... so we still don't know what's going on |
|
"Chicken nuggets don't dance on a Tuesday."
|
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
I know Mike but did not want to confuse matters by introducing my problem into the same thread. There may also be a cross-linkage with stuff about the Finebau Forge device.
All the best, David |
|
theoneandonly
Senior Member Joined: 24 Jul 2014 Location: london Status: Offline Points: 661 |
Post Options
Thanks(0)
|
Paul at corsa , and i did the fuel injection course on the same day . get him to fix it . that is what you paid him for .
|
|
https://www.facebook.com/BaldricksWorkshop
http://baldricksworkshop.co.uk/ motorcycle slut, if it has wheels and an engine , i will ride it . |
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
Dear Baldrick,
So it is soluble by adjusting something? Can this only be done via the PADS device? Thanks for your input! David.
|
|
Mike H
Senior Member Joined: 21 May 2014 Location: East Anglia Status: Offline Points: 8733 |
Post Options
Thanks(0)
|
Sorry wasn't implying it should be, just saying there's at least one other case of very similar prob. I am idly considering that my next Guzzi should be one of the 'new' V7's so I have more than a passing interest in the issues that can affect them. |
|
"Chicken nuggets don't dance on a Tuesday."
|
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
Still living in hope someone will come through with a solution!
David. |
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
I had a good old go at the V7 this morning. Not having software hook-ups etc it was limited to spanner and screw driver stuff.
I found the valve clearances were rather loose and not correctly set as per Moto Guzzi specification. They are now dead on at 4 thou inlet and 6 thou exhaust ( 0.1 mm and 0.15 mm for the metric amongst us) stone cold. I re-gapped the plugs and put them in to the correct torque value. Now for the discovery bit! Because I am stupid I had not realised there is a means of adjusting the idle revs staring me in the face. Beneath the cold start lever there is a simple turn-buckle adjuster for the cable tcovered by a rubber boot that allows a very fine adjustment to be made of the idle speed. I let everything get up to themperature and, as usual she started to hunt and stumble to a stall. Using the turn buckle I have been able to set the slow running speed at around 1200 and the bike sounds very happy and smooth. The workshop manual says it should be 1100 +/- 100 so I am just inside specification. Trying to set it a bit slower led to the engine hunting and stalling again so I will leave it at this setting for a bit and see how she goes. David. |
|
Brian UK
Moderator Group Joined: 13 May 2014 Location: Surrey Status: Offline Points: 17641 |
Post Options
Thanks(0)
|
Check that turning the bars from lock to lock doesn't affect the idle speed.
|
|
Brian.
Better 5 minutes late in this world than years early in the next. |
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
Hi Brian, thanks for the warning. I did check that and all is OK.
|
|
BobV7
Senior Member Joined: 20 Nov 2014 Location: W. Sussex Status: Offline Points: 2740 |
Post Options
Thanks(0)
|
I think what you've done there is increase the tension on the cold start cable (the lever on the clutch side). I don't think it's the way to adjust tick over but if it's working for you....
|
|
V7 Classic Black and gold was the best. But green & black was nice too. Now blue is in!
|
|
Cylvabirch
Senior Member Joined: 02 Jun 2014 Location: Whitehill Status: Offline Points: 274 |
Post Options
Thanks(0)
|
It's all a mechanical man like me can do. How is it done properly?
|
|
BobV7
Senior Member Joined: 20 Nov 2014 Location: W. Sussex Status: Offline Points: 2740 |
Post Options
Thanks(0)
|
Not a criticism just an observation and if I knew the answer I wouldn't need a trained mechanic. As others have said, take it back to the dealer to fix or give "theoneandonly" (Baldrick) a shout.
|
|
V7 Classic Black and gold was the best. But green & black was nice too. Now blue is in!
|
|
Post Reply | Page 123> |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |