F3 675 running on 2 cyl. - MVAgusta.net
 2Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 13 (permalink) Old 07-07-2019, 02:41 PM Thread Starter
New Member
 
Join Date: Jan 2018
Posts: 30
F3 675 running on 2 cyl.

Was riding the other day and heard a small pop then bike went down to what feels like 2cyl. No CEL or any other noises. I'm hoping it's not a valve issue but was wondering if anyone else has experienced this? Could it just be coils or plugs (Long shot but I'm hoping)? Bike has 10,900 miles and when I drained oil I have no metal flakes in the oil, oil looks clean and drain plug did not have any abnormal metal shavings.
Sstaas62 is offline  
Sponsored Links
Advertisement
 
post #2 of 13 (permalink) Old 07-07-2019, 04:00 PM
Senior Member
 
PTsalas's Avatar
 
Join Date: Apr 2012
Posts: 1,372
Why did you delete the previous thread and repost again?

Sounds like a dropped valve. Take off the airbox and have a look at your inlet valves to confirm.
Black_Gold_Saw likes this.
PTsalas is offline  
post #3 of 13 (permalink) Old 07-07-2019, 04:09 PM
Senior Member
 
Black_Gold_Saw's Avatar
 
Join Date: Jul 2016
Location: Netherlands
Posts: 1,582
New Site Garage
Doesnt it make like the most horrible sound in the world when a valve drops?
I dont know what CEL means.

Here a video of a bike dropping a valve when riding.


"Mileena"
MV Agusta F3 675 '17 - Matt Avio Grey


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Black_Gold_Saw is offline  
Sponsored Links
Advertisement
 
post #4 of 13 (permalink) Old 07-07-2019, 05:53 PM Thread Starter
New Member
 
Join Date: Jan 2018
Posts: 30
Definitely didn't make any noise like that. It was a pop almost like a backfire and then down to 2 cyl. No rattles in the motor or anything like valve hitting piston. Just running on 2 cyl now. I will remove the airbox and check valves. But I would assume I would have some kind of metal in my oil if it was valves.

As far as deleting, someone removed my last post I'm guessing due to it being posted in the wrong place.
Sstaas62 is offline  
post #5 of 13 (permalink) Old 07-07-2019, 05:54 PM Thread Starter
New Member
 
Join Date: Jan 2018
Posts: 30
CEL was meant to he Check Engine Light. (No codes displayed on dash at all.)
Sstaas62 is offline  
post #6 of 13 (permalink) Old 07-07-2019, 06:31 PM Thread Starter
New Member
 
Join Date: Jan 2018
Posts: 30
It was a valve
Attached Images
 
Sstaas62 is offline  
post #7 of 13 (permalink) Old 07-07-2019, 06:36 PM
Senior Member
 
Black_Gold_Saw's Avatar
 
Join Date: Jul 2016
Location: Netherlands
Posts: 1,582
New Site Garage
Damn....
What model year bike/engine?

"Mileena"
MV Agusta F3 675 '17 - Matt Avio Grey


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Black_Gold_Saw is offline  
post #8 of 13 (permalink) Old 07-07-2019, 06:40 PM Thread Starter
New Member
 
Join Date: Jan 2018
Posts: 30
2013 f3 675.
Anyone have any leads on a replacement motor or a company/shop that can rebuild these in the US.
Attached Images
 
Sstaas62 is offline  
post #9 of 13 (permalink) Old 07-07-2019, 07:04 PM
Senior Member
 
theknurl's Avatar
 
Join Date: Jul 2009
Location: Palos Verdes Est, SoCal, USA
Posts: 13,799
Send a message via Skype™ to theknurl
Thumbs down ?

Sstaas62;
All that aluminum on the butterfly and all over the air box is piston or head pieces

Noel-theknurl

The Forum Curmudgeon
I'm not PC either
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

'08 910R
'05 F4
ph. 310-414-7247 PST, GMT -8
PayPal;
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Skype; theknurl
theknurl is online now  
post #10 of 13 (permalink) Old 07-07-2019, 07:20 PM Thread Starter
New Member
 
Join Date: Jan 2018
Posts: 30
I honestly stopped after I got this far. Got a little heated and walked away. It has metal chunks all inside the airbox and butterfly valve. I will tear it down once I figure out if I can find a motor to replace it with.
Sstaas62 is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to use all of the features of the MVAgusta.net site, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome