Mikew

I have now got the bike/trike started, starts first time, but still have an issue which is the exhaust is a Delkevic 4 into 2, all down pipes get hot except number 2 which stays cold, the bike/trike seems to be firing on all 4 cylinders so not sure what the trouble might be, the bike/trike is over at a friends and I will not be back over until Tuesday, was going to swap plugs to see if the problem follows, failing that I was going to check cylinder 2 for blocked jets and clean if required, but any help or advice would be appreciated.

Ok but why ask ME specifically ? As I said I do not own a Yamaha XJ 900 so I can't nip out to the garage and have a look plus I'd have to take the tank off if I did . May I suggest you join a Yamaha owners forum in the hope that someone there is prepared to help out in this matter. The only thing I can think of is that it doesn't matter which way round the wires go but opinions vary concerning the polarity of coils . Sorry, hope you get it sorted soon . I replied to you specifically because you were the person that gave details about the wire connectors, that's why I asked which wires go to which connector on the coils, if you did not know you should just have said so. Thanks for your help with colours etc. Hopefully someone with an XJ900S will be able to help me, I have not and do not ride a bike, this is a trike project, I have no knowledge on any bikes wiring whatsoever.

Yes I have the manual and it gives the colours of each wire that goes to the coil but it does not show you in the manual or give any details as to which is the top or bottom connection, if it did I would not need to ask you the question. Thanks.

Hi fast bob, Thanks for your reply. Can you further confirm which wires go to which coil i.e. left side coil top connector takes which colour of wire and bottom connector takes which colour of wire likewise for right coil (battery side). Many Thanks.

Can the question be read before replying, not too sure why "leener" gave an answer that has no relevance to my question.. Looking for sensible answers, 2 coils with 2 connections on each (one spade connector top and one on the bottom) what colour are the wires that go to each. Cheers.

Hi, I got the connections more or less sorted, except the coils, can someone tell me the colours of each of the wires that connects to the two HT coils. (Left and Right) there are two spade connections per coil, one on the top and one at the bottom, looking for the correct colour cables to each coil. Thanks,

There was a stand switch on the bike but can't see where its connected to on the loom. Neutral switch, clutch switch, and oil sensor I believe are causing the problem but until I know where to connect them I'm stuck.

Ok Thanks for the replies, Yep I knew about the clutch answer I have a few issues/questions. Can anyone tell me where certain cables connect on the loom. 1) Oil sensor - this is located on the underside of the sump and is a single white wire about 5 inches long with a bullet connector, should there be a longer cable that connects on this and then connects to the loom if so where on the loom? 2) Neutral Switch - Single light blue wire, where does this connect to on the loom? 2) The clutch switch is not working I can't hear a click when the clutch lever is pulled, I have ordered a new replacement. I am not an established biker and know nothing about bike electrics so any help and pictures of connections would be appreciated. Thanks in advance.

Hi thanks for all the advice. Ok I have the wiring to the coils done but when I press the starter button but nothing happens, when I first started the project I replaced the wiring loom as the original had seen better days, could it be that the switch that goes to the stand is causing the problem and needs disconnecting, not too sure where on the loom the connector is or what it looks like so any help would be appreciated. Thanks.

Hi and thanks, I am rebuilding the XJ900S, its not at my home its at a friends house(small farm) its been stored there for quite a while, working on it when time allows, totally stripped down and powder coated the frame(different colour to the original) almost there but the wiring is the problem for me, will be going back to his place on Tuesday so will try what you have suggested and get back to you. Thanks for your help.

I did google it and came across the Forum, I have a manual and have done what I can but I'm not an auto electrician, that's why I asked for help, if you can't help I am not too sure why you replied. Cheers.

Can anyone help, trying to get an XJ900S working that is getting refurbished and not sure which colour of wires to connect to the coils from the loom just to confirm as I can't get it to turn over, pictures would be great. Thanks