F4 750/910 Hybrid power - MVAgusta.net
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post #1 of 45 (permalink) Old 10-04-2018, 11:01 AM Thread Starter
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F4 750/910 Hybrid power

Thought id start a thread of the build, so if someone wants to do it too, can see what is needed.


Long story short, bought an 750 F4 with a number 3 conrod through the cases . And through discussion here in forum, thought id put in a 910 brutale motor.


Stripped the whole bike to the last nut and bolt, and went through everything. Still the suspension to be shimmed to my specs By a professional, but id should be sorted in few weeks.


The engine i found from Italy, its done 20k. Checked the valve clearances from it and cleaned and changed the sump and the sump filter, also changed the necessary parts from the F4 to the 910. The engine looks like a brand spanking new motor inside out!!


Maybe tomorrow i have time to hang it on the frame i hope. Only one pic as of now, but more to come.
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post #2 of 45 (permalink) Old 10-04-2018, 11:06 AM
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Looks nice!

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'07 F4 312R, '10 B4 1090RR, '15 B3 800RR
'07 Ducati Monster S4Rs, '07 Ducati Monster 695
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post #3 of 45 (permalink) Old 10-04-2018, 11:10 AM Thread Starter
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Cant believe how clean it was, zero crud on it. I wonder how on earth it has stayed like that!
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post #4 of 45 (permalink) Old 10-04-2018, 11:20 AM
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I have no idea. I have a 750 motor in my garage that is intended for a track bike build. It is NOWHERE near as clean.

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'07 F4 312R, '10 B4 1090RR, '15 B3 800RR
'07 Ducati Monster S4Rs, '07 Ducati Monster 695
2010 Harley Davidson Ultra-Classic Electra-glide CVO FLHTCUSEBLK
'63 Honda C100A Cub
'61 MVA TRA 125
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post #5 of 45 (permalink) Old 10-04-2018, 11:45 AM
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did you consider retaining the oil cooler from the Brutale instead of switching to the dual radiator F4 setup?
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post #6 of 45 (permalink) Old 10-04-2018, 12:25 PM Thread Starter
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Actually no, i did not, i was afraid i would ran into clearance issues with the exhaust to fairing, and other thing is that i want it to look oem F4. Besides the weather actually isn`t hot here in the summer, so im sure the twin rad will do the job Had absolutely no heat issues with my previous F4.
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post #7 of 45 (permalink) Old 10-06-2018, 02:12 PM Thread Starter
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Bit of an update, got the engine in and about half of the wiring done! Just hoping the starter and manual CCT would arrive soon, so it would only be the chip and injectors to get it running, sort of...

Fingers crossed the starter can be installed when engine in frame?

The fairings and tank are on the painters to get an oem red/Silver paintjob, should be done at the end of next week. I hated the corse colours, cant understand why someone would pay extra of them... But everyone to their own.

By the way, anyone thinking of putting on the manual CCT and not being confident of the tightening. I measured the stock tension as follows, put the number one cylinder at TDC, and lined the pulley wheel marks, then aplied 4kg of upwards force to the camchain at the middle with a spring scale, the chain freeplay is 1,65mm. So thats what im aiming at as a starting point for the manual tensioners tension. The 4kg is surprsingly much pull By the way. This is just my way, not saying its the right way.
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post #8 of 45 (permalink) Old 10-11-2018, 07:02 PM Thread Starter
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The manual CCT arrived, looks really nice for an 38 euro part! Anyone interested, it is from an KX250F 2004-2010. Seller can be found on Ebay By the name of trans*action. Fit is perfect, and even comes with new bolts, o-rings and good instructions.

The OEM was really close of making a mess, the spring had popped almost completely off.

Got everything installed, and really its only a case of the injectors arriving, and me ordering the eprom. Pics to follow once i get the new fairings on.....
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post #9 of 45 (permalink) Old 10-14-2018, 11:43 PM Thread Starter
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Anyone thinking of the same engine swap, here are the things that need to be changed.

- Valve cover from the F4 750, the coils dont fit on the 910 brutale cover (bigger holes)
- Injectors from 910
- Chip to 910
- Front sprocket spacer from F4 750, or shorten the 910 spacer By 1,85mm. The chain does not align, nor the sprocket safety washer fit with the 910 spacer, if using 750 F4 sprocket.
- 910 Starter, if the engine does not come with one. 750 F4 and 910 are different
- 750/1000 F4 water manifold, oil cooler and oil filter "leg"
- One bolt exhaust manifold clamps from any F4 1000 or Brutale

And while the valve cover was out, i changed the cam cap bolts to BMW 328i deep sunken Torx head ones. So no more rounding heads when servicing valves.

So its pretty straightforward, but still need more than just "bolt on"
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post #10 of 45 (permalink) Old 10-23-2018, 01:31 AM Thread Starter
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Got the chip(Thanks Merc), and the injectors arrived. So its start up time on Thursday

Just wonder what is the real difference between the 750F4 and 910 Brutale injectors? I got both tested/cleaned on a bench, they are 95% the same injector in what comes to real world flow. Cant imagine the rest 5% making any difference that can be noticed. Alltough i might be wrong here again...

Question of injectors, is there a better opion to the Magneti Marellis? Maybe some modern Bosch injector?
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