February 21, 2005 at 9:02 pm #9630
I have just bought a dominator 1996-T model as a hack, I am not technically minded and need some guidance, my bike occassionally backfires, can be very hard to start, and cuts out every 5 minutes ( no coughing or spluttering, it just cuts out) but starts again straight away…what items should I be looking to check to solve this problem
Stee41[:o)]February 21, 2005 at 9:48 pm #23150MuppdogParticipant
check the obvious first. Change the plug and gap, airfilter clean?, all connections airtight?. Still can’t get it to run call back.
The lack of power cannot be replaced with madnessFebruary 21, 2005 at 11:21 pm #23151
Hi stee41 and welcome to the forum. Does your bike tick over OK or does it vary in engine speed?February 22, 2005 at 3:30 pm #23152GSX RatParticipant
try it with the tank lid undone – if it runs the hole in the filler cap is blocked, also try it with the carb fuel tap in the prime position – if it runs the vaccuum fuel tap is stuck.
I slept with faith and found a corpse in my arms on awakening; I drank and danced all night with doubt and found her a virgin in the morning.
Aleister Crowley (1875 – 1947)
Blackboard paint – Covers a multitude of sins!February 22, 2005 at 4:17 pm #23153
Originally posted by imperialdata
Hi stee41 and welcome to the forum. Does your bike tick over OK or does it vary in engine speed?
idles up and down a bit 1200rpm+/-150, what’s next?February 22, 2005 at 4:41 pm #23154Stan_DBParticipant
Clean carburator. 
Ride SafeFebruary 22, 2005 at 6:34 pm #23155
I think you need to at least whip out the plug and find out if it is running rich/weak/perfect on the mixture. The best way is to do a plug chop. Run the bike at a steady speed for a while then kill the engine before you drop the revs and coast to a halt with the clutch pulled in. Pull the plug and check what colour it is.
Also occasional backfiring and starting problems could point to your timing being out so it would be worth a timing check too. Perhaps something on your timing is loose and is moving as your bike vibrates.
I know there are a few Whitworth threaded components under the timing cover on the old Dommis, maybe one of them has come loose.
Take a peek here for more info
Best of luckFebruary 22, 2005 at 11:12 pm #23156
just so you are all aware, I have a Honda dominator and not a Norton dominator
and my problem just got worse, loads of life in the battery, I can smell the fuel pumping through, but the bike won’t fire at all now!!
electrical problem you reckon?…help please anyone[:o)]February 23, 2005 at 1:10 am #23157
Oops, 1996 should have given me a clue 
Try removing a spark plug and put it back in the HT lead. Using insulated pliers (or wood etc) hold the plug to the body of the engine so it has metal-to-metal contact. Now crank over the engine on the starter. If you see a nice fat spark then you have ignition, ie electrics are OK. Repeat for the other plug(s).
No spark = electrical fault.
Give that a try first and let us know.February 23, 2005 at 1:17 am #23158
Oh and sidestand switches have also been known to cause this type of problem. Worth a quick check!
Just a thought too. If your bike started and ran before for a while then cut out, it could be the choke is staying on. The bike could now be flooded so it won’t start until it ‘dries out’ a bit. Then you’ll start it but have the same cutting out problem when it warms up and the choke stays on.February 23, 2005 at 10:52 pm #23159RadarModerator
Was the bike laid up for a while before you got it. Unleaded petrol is notorious for loosing its poke as time passes. This will also coat your carbs/jets and lead to poor running.
A good clean out of the whole fuel system and frsh fuel could do wonders.
Imperial D’s tip on the sidestand is a good one too.
Welcome to the forum and let us know how you get on.
Donate – Or Imperial Data will have you sorted!
February 27, 2005 at 8:39 pm #23160
Thanks all for the replies, looks like I have a lot of work to do, only trouble is I have recently pulled my garage down and have no work space, so much to the dissmay of the missus I am preparing to sheet up the conservatory and use it as a temp workshop…bloody amazing really as the missus didn’t even complain about that suggestion and the conservatory is only 1 year old, I will keep you all posted[:o)]March 24, 2005 at 11:54 am #23161
thanks all for your help, guess what?…it was a dodgy valve that caused the cutting out, but its all sorted out now, unless anyone has a GOLD colour rear wheel for me lying around somewhereMarch 24, 2005 at 6:19 pm #23162RadarModerator
Glad to hear you are sorted S41. No Gold wheels for Dommies in all my junk I am afraid! Let us now how the summers biking goes.
Maybe you can join the forum mmet up that is being discussed elswhere on here.
Donate – Or Imperial Data will have you sorted!
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