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Post by mark1316 on Mar 13, 2008 1:32:05 GMT
Guys got my old 600 back to life. Runs like a bag of bolds tho. When it starts up it is only running on 3 cyls  ? changed the plug but still same. It will then spring into life after about 4 or 5 min of tick over or spme revvvvving. Any ideas as to why ? I am about to try new coils any thing else i should be looking at ? CDI ? OR rEGULATOR ? MARK |
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Post by El Fuego on Mar 13, 2008 9:13:30 GMT
Carb balancing?
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Post by mark1316 on Mar 13, 2008 9:42:51 GMT
Cheers Ian Thats the next thing on the cards . Just trying to beg borrow or steal a set of ballancers to try this out . Cant wait to get it back up and running so I can enjoy the good Scottish weather
Mark
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Post by yorric on Mar 13, 2008 13:01:20 GMT
I haven't got a 600 but I assume there are only 2 coils, each feeding 2 spark plugs. So if you only have one cylinder not firing, it can't be the coil itself. Most likely causes - not in order.
1. Bad spark plug - swap with a known good one)
2. Bad plug lead - look for external damage - also the leads can be damaged inside the coil body - I had one like that giving intermittent misfiring. (Some coils are permanently fixed to the plug leads others have changeable plug lead arrangements.
3. Bad plug cap - swap with a known good one.
Normally I don't swap components across cylinders - I find I sort things quicker by having a new spare to try - that way I don't bust owt that's working.
4. Run the bike in the dark & look for stray sparks around the leads & plugs.
5. If you run the bike from a cold start - don't get it too hot - then take out the offending plug - see if it's wet & smelling of petrol. - If it is wet, it's probably not the carb - unless you have a sticky float valve & are flooding it. Note flooding can be a real problem leading to petrol leaks outside the engine *** Fire Hazard*** or on some bikes leaks inside the engine resulting in petrol in the oil etc.
If it's dry, the carb needle valve could be stuck shut - sometimes happens when a bike is laid up and once freed the problem may go away. Or a carb strip & clean is needed.
6. It's important to be sure that the petrol level is correct in all the carbs. - Get that checked before you get the carbs balanced.
Good luck
Ian
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Post by mark1316 on Mar 13, 2008 18:42:13 GMT
Hi Ian thanks for the tips. I just took delivery of a spare set of coils and I will be sticking them on at the weekend and se if that makes any difference. I have the bike booked into a garage to get the balance checked but how do I check that the fuel is getting to the cards at the right rate and the right level is in the bowls ?.
Sorry for the daft questions but not the most mech minded on bikes . I take it this fault aint anything to do with CDI or Regulator ?
mark
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Post by darren on Mar 14, 2008 2:21:06 GMT
as mentioned above, its either plug lead, cap, or carb, hadthis problem on many a bike that turned out to be one or the other, more time than enough it was blogged jet in the carbs, which although cleared it would blog again due to a load of crap in one of the float bowls
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Post by HRHpenfold on Mar 14, 2008 9:33:48 GMT
Your lucky, I have a couple of bikes, that will only start on two  |
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Post by El Fuego on Mar 14, 2008 11:11:44 GMT
Twin cylinder bikes?  |
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Post by teejayexc on Mar 14, 2008 13:19:40 GMT
Your lucky, I have a couple of bikes, that will only start on two Trouble is they sound like a four running on three  trev |
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Post by eliminator on Mar 14, 2008 18:31:42 GMT
Oi! I resemble that comment |
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? changed the plug but still same. It will then spring into life after about 4 or 5 min of tick over or spme revvvvving. Any ideas as to why ? I am about to try new coils any thing else i should be looking at ? CDI ? OR rEGULATOR ?
