audiomick Posted May 25 Posted May 25 (edited) Pete, thanks once again for your expert opinion. Nice to have my own thoughts confirmed. One thing though, here: 17 hours ago, pete roper said: ... the ‘Reader’ and ‘Writer’ programs CANNOT brick or otherwise damage your ECU. ... The programs themselves don't do any damage. What, however, is really important is making sure both the computer and the bike don't run out of volts during the transfer. In Bernd's opinion (Beard, GuzziDiag author), it is highly unlikely that anything would go wrong if the readout process were to be interrupted. A very unlikely possibility remains. The writer process, on the other hand, dare not be interrupted. Make absolutely sure that both the computer and the bike have a solid voltage supply that is not going to go flat in the middle of the process. Ideally the computer on its mains power supply and the bike battery on a charger or similar. This advice is, incidentally, included in the instructions for using those programs. Having said that, that is not a characteristic or "weakness" peculiar to the IAW writer. It is a general rule that applies anywhere in the computer world, wherever data is being written to some form of storage. For the same reason, windows has that icon in the task bar to log out a usb stick before you remove it from the computer. If you pull it out halfway through a write, it might get bricked. Edited May 26 by audiomick 2
Drahchir Posted May 26 Author Posted May 26 Ok. I think I’ve found the issue. I started the bike and noticed that when I put my hand over the exhaust the LHD (as sitting on it) was smooth the RHD was puffing and certainly cooler. So I’m pretty sure it’s a misfire. So I’m going to whip the tank off replace both ht leads, caps. Which leads me to the ignition coils. I reckon that the RHD is failing so I might as well replace it. New ones are £180 each . 2nd hand £45 per coil. On EBay I can buy 2 for £75. I get that they are cheap Chinese. Anyone got any experience of them? thanks for all help and advice.
Drahchir Posted May 26 Author Posted May 26 I hope I didn’t offend anyone with what I read about guzzidiag and posted!!!!That certainly was not the intention. 1
pete roper Posted May 26 Posted May 26 Nobody’s going to be upset by questions being asked. Nobody sensible anyway. One just has to be careful when assessing both given information and it’s source. What Griso have you got and have you fixed all the little problems the factory built in? 1
Drahchir Posted May 26 Author Posted May 26 It’s a 2003. I’ve just checked the spark plug caps and have 5k ohms. It makes sense (to me) to do the basics rather than diving down the rabbit hole!
Drahchir Posted May 26 Author Posted May 26 Was just wondering. If I swap the ht leads over would the misfire happen on the other cylinder? Proving that one of the coils is at fault? 1
docc Posted May 26 Posted May 26 You have a way to check throttle body balance? That could work a little magic for you......
gstallons Posted May 26 Posted May 26 3 hours ago, Drahchir said: Was just wondering. If I swap the ht leads over would the misfire happen on the other cylinder? Proving that one of the coils is at fault? Take your DVOM and go from the spark plug cap to ground w/your meter leads. You will test the integrity of the cap, plug wire and the secondary of the ign. coil. Both sides should be the same.
audiomick Posted May 26 Posted May 26 6 hours ago, Drahchir said: I hope I didn’t offend anyone with what I read about guzzidiag and posted!!!!That certainly was not the intention. Speaking for myself, I'm not offended as such, but am keen to counter what appears to be a deliberate slur campaign against Guzzidiag. I've heard and reads dozens and dozens of good reports about GuzziDiag, and encountered only that one source that was canning it. That annoys me, as it seems to be deliberate, contemplated and serving only his commercial interests. 4 hours ago, Drahchir said: Was just wondering. If I swap the ht leads over would the misfire happen on the other cylinder? Proving that one of the coils is at fault? To do that, you also need to swap the wires that "fire" the coil, so you get the spark at the correct time for the other cylinder. The idea is, however, fundamentally correct and sound. If you do that and the misfire moves to the other cylinder, you know it is being caused by either coil, HT lead or plug cap. If the misfire stays where it is, you know for sure that none of the abovementioned components are causing it.
pete roper Posted May 26 Posted May 26 7 hours ago, Drahchir said: Hi Pete. The issues I’m having is with my V11 Le Mans. Yes, I realise that. I just have a particular interest in the CARC series bikes. No matter. Have you performed a full tune up including balancing the throttlebodies and setting the TPS? 3
Pressureangle Posted May 27 Posted May 27 11 hours ago, Drahchir said: Or are they designated to each cylinder? You can't just swap sides, you have to swap them on the coils as well.
Drahchir Posted June 1 Author Posted June 1 I have spoken with a a Guzzi guru who is a very experienced chap with Guzzi. (Mike de Clifford) Like you all said it needs a decent tune up! He knew straight away as did you guys! well beyond my knowledge!! So I’m taking it to him this weekend! Pete I had my Griso for 16 years. never really had an issue with it, except for lack of grease where it was required the most! The only other thing that I could probably say was condensation in the clocks. 2
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