Rebuilding 749 motor economical? - Ducati.ms - The Ultimate Ducati Forum
  • 1 Post By ducvet
  • 1 Post By smoke4ndmears
  • 1 Post By juan1
  • 1 Post By belter
  • 1 Post By smoke4ndmears
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old Apr 23rd, 2019, 9:13 am Thread Starter
Member
 
smoke4ndmears's Avatar
 
Join Date: Feb 2015
Location: New Market, MD, USA
Posts: 42
Rebuilding 749 motor economical?

I'm considering making an offer on a clean 749 track bike with a motor issue. The owner over-revved it going into a tight right-hander at a track day in 2014 and hasn't run it since. It wasn't smoking, but making a pinging\knocking noise (two different things to me) and he suspects valve train issues. I would lean more towards a spun con-rod bearing but at this point it's all speculation. Figuring a bottom end issue is the worst case scenario, would it be worth rebuilding the motor or just getting a working used unit? Asking so as to factor into my offer.

Thanks!
smoke4ndmears is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old Apr 23rd, 2019, 10:03 am
Senior Member
 
ducvet's Avatar
 
Join Date: Dec 2007
Location: lakes region, NH, usa
Posts: 3,225
Garage
Images: 1
I bought one from a owner a couple years back with a known engine issue, I am a mechanic so I figured I would just fix the broken bits. When I tore the motor down it was easy to see the rider kept the throttle open for too long past the point of no return so there was not enough of the motor to make re-building worth while. I chose the replacement route and $1500 later had a similar mileage (12,000) motor in the chassis. I tuned it while I was at it and ended up with a good bike again.

As to value factor in a replacement motor and costs to swap, keep in mind a used motor may be a crashed bike that spent its last 30 minutes running on its side at the bottom of a canyon so you will never know what condition the rods and mains are in. if that bothers you walk away, if not think about 999 motor swaps etc and have some fun. A complete rolling chassis is what you re buying so i would expect $1500.00ish depending on what other parts are on the bike.
smoke4ndmears likes this.
ducvet is online now  
post #3 of 7 (permalink) Old Apr 23rd, 2019, 10:39 am Thread Starter
Member
 
smoke4ndmears's Avatar
 
Join Date: Feb 2015
Location: New Market, MD, USA
Posts: 42
Just the reply I was expecting and from the source I hoped. The only real fancy part on the bike is the de-rigueur Termignoni exhaust system. Basic track stuff after that -clip ons, rear sets, bodywork. Besides the motor, the only other issue I see is that it's unfortunately sprung for a gorilla.

There is also a handy industries motorcycle lift that is part of the deal, so that gets factored in too.

As always, thanks for your advice!
ducvet likes this.
smoke4ndmears is offline  
 
post #4 of 7 (permalink) Old Apr 24th, 2019, 8:48 am
Senior Member
 
juan1's Avatar
 
Join Date: Jun 2010
Location: clifton, nj, usa
Posts: 358
Or I got a nice 999r motor to put in there lol
smoke4ndmears likes this.

all my money goes to, 2010 1198 street bike, 2000 748 with a 999r motor track day bike, 2006 gsxr 1000 track day bike
juan1 is online now  
post #5 of 7 (permalink) Old Apr 24th, 2019, 8:51 pm
Senior Member
 
Join Date: Jul 2018
Posts: 603
it's never economical rebuilding one of these.
smoke4ndmears likes this.

know all wanker
belter is online now  
post #6 of 7 (permalink) Old Apr 25th, 2019, 11:10 am Thread Starter
Member
 
smoke4ndmears's Avatar
 
Join Date: Feb 2015
Location: New Market, MD, USA
Posts: 42
Well the seller accepted my offer, and I'll have a nice summer project on my hands. For a little more than you mentioned ducvet I got the bike and the lift. Not bad!

I'm thinking of getting it back on the street and enjoying it a bit before selling it on.
smoke4ndmears is offline  
post #7 of 7 (permalink) Old May 4th, 2019, 6:36 am Thread Starter
Member
 
smoke4ndmears's Avatar
 
Join Date: Feb 2015
Location: New Market, MD, USA
Posts: 42
Turns out it's a 749S, so that's interesting. Looks so good it might make me do stupid things with my money.

Dukerdr likes this.
smoke4ndmears is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ducati.ms - The Ultimate Ducati Forum forums, 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













Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Ducati 749 999 Tachometer Speedometer Lock Set 3 Keys Ignition Cluster! jiigan Parts and Accessories 5 Jun 30th, 2017 6:33 pm
Biggest cylinders into 749 engine cases Ohm3d Tech Forum 0 Dec 15th, 2016 10:11 pm
749 vs 848 evo or 899/959 as a daily driver. Flowbrook1 Superbikes 3 Apr 27th, 2016 9:42 am

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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