[Dumble007]

Just bought a ducati. Had it for 2 months, started to show signs of engine issues: engine jerks when i rev above 4000rpm. Send in to my mechanic. Changed the fuel pump, found a leak in the valves. Did top overhaul for this.
Had it running for a week. Now engines seems to face problems trying to rev especially in the 4000-5000rpm. Engine splutters and it will rev above 5000rpm but speed doesn’t pick up.

gonna check the plates next.

running stock exhaust and no modifications

 

[BOTT]

Always check compression first. What are the numbers?

 

[Dumble007]

Always check compression first. What are the numbers?

Will get the mechanic to check that. Whats a good range of numbers for that?

 

[BOTT]

I do not know the running spec as per book, but the guess is anything around 150 psi or more is a working number. Both should be close to even numbers or syncing is going to be a problem is one.

 

[cs363]

Will get the mechanic to check that. Whats a good range of numbers for that?

The 1198 service manual I have calls for an ideal range of 160-175psi (11-12 bar) with a minimum of 145psi (10 bar).

 

[BOTT]

So the numbers read a working performance number (175-160 psi). Out of performance is 159 psi, so do not cry is runs weak. 145 psi means it's out of spec give or take a pound. That says 145 or under, is rebuild time.