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Discussion Starter #1
:wtf:Hi all, i,m having dramas with my 1078 brutale (and getting over it). Right here go's First of all my engine temp display went out on dash and was just flashing so i orded a new sensor, while waiting for that it droped a cylinder, discoverd that was a coil so replaced that along with new temp sender. everything seemed back to being al gd. (apart from getting warm in traffic). Have done about 800ish kms. And today was goin for a ride when my temp gauge went haywire and started flashing again and about 10 km down the road dropped a cylinder again. Anyone got an idea of wots goin on. CHEERS
 

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Hi, check the valves play, how many miles do you got?
 

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Wow, very strange,have done almost 43,000 km and never changed a coil,something else is at play.

cheers eddy
 

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Discussion Starter #5
Yeah but what. Its strange. Do you know if the temp sender and coils are connected in any way. cheers
 

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Temp sender should have nothing to do with coils,just check if all your injector plugs are plugged in securely,and check all your spu fuses , this is very strange,just should not be happening on the 1078 brutale.do you have the standard ecu in the bike ,if so i do have my original ecu that i could send you,to try and resolve this no charge .

cheers eddy
 

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Discussion Starter #7
Yes seems odd that its done it twice now, there must b another issue goin on. and yes still has std spu
 

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ok spu is differnt to ecu,spu has all your fuses in it ,ecu is the brain that controls basically the fuel etc
 

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also, have you changed all the battery cables from the starter motor to battery and to solonoid and to earth,all 3 have to be replaced as they are not good enough to crank this bike ,in otherwords they are crap.
 

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Get the wiring diagram and check the ground connections that are related to your electrical issues first. Sometimes connections loosen or get crudded up. This won't cost you anything either.
 

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The temp sensor on this bike is located in the cylinder head. There is no radiator temp sensor. So the sensor sends a signal to the ecu which sends a signal to the instrument temp read out...

What year is your bike ?
 

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The temp sensor on this bike is located in the cylinder head. There is no radiator temp sensor. So the sensor sends a signal to the ecu which sends a signal to the instrument temp read out...

What year is your bike ?
1078 has both sensors Joe.
 

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F4 1078 was loosing cylinder no2 and also checked coils injectors etc etc. Finally it was the ecu sending wrong signal. I was loosing spark plug no 2 as well. If you can get a spare ecu change it and see. Most probably its the same issue. With a temp reader check which cylinder u are loosing every time (its the one running cooler). It must be the same one. I doubt its the sensor they dont brake down so easily. As for the temp indicator maybe its just the pin of the connector at the back of the display/clock. Check that for a loose connection. In the manual u ll find which pin is the one for temp.
 

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Discussion Starter #17
The bike is an 08/09 and yes it only has the one temp sender in the head none in the radiator. Is there a test i can do to check ecu.thanks
 

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The bike is an 08/09 and yes it only has the one temp sender in the head none in the radiator. Is there a test i can do to check ecu.thanks
You better check again, all 1078's have two temp sensors, pretty sure about that.
Have you had a look at the diagnostic section in the Workshop manuals, there's a very good diagnostic lay-out in there.
 

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YEP,spot on Donsy 2 sensors and 1 air temp sensor on the top air box.Now did you buy this bike new,do you know if someone has reversed the battery leads the wrong way by accident ,as this did happen to me it took me 1 month trying to figure out why i could not tune my bike at mid range,i actually damaged my race ecu,had to put back my standard ecu to figure out why this was happening,yep a blew the race ecu a slight reverse polarity can stuff them up.In the end i purchased another race ecu from one of the guys on the forum.

This might help.
what country you in.
cheers eddy
 

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Discussion Starter #20
I bought the bike secondhand but are pretty sure battery polarity has not been hooked up wrong. I have had radiator off in the past and can confirm there is definatly not a temp sender on it. only the one in the head with 4 wires coming from it. And hav'nt looked at diagnostics in manual, i dnt have the 1078 brutale one.
 
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