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  #1  
Old 15-Mar-2012, 12:15 AM
jangol jangol is offline
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back fireing & a pain to start...

any ideas on the following..

my 03 is a pain to start.. its obviously been tucked away during the winter.. its been plugged into a optimiser..

any thoughts.. would it be a spark plug issue...

also to get ut started after about 5 pushes of the button, it will only start with through choke on full..



to add it sometimes backfires once it started?? is that because its cold?? what should i be looking at to prevent that..

any thoughts would be great
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  #2  
Old 16-Mar-2012, 12:24 PM
Putney Putney is offline
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Have you put a fresh tank of fuel in?
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  #3  
Old 16-Mar-2012, 01:16 PM
KeefyB KeefyB is offline
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Mood: Lurkin'.....
What voltage have you got at the battery?A good battery is critical on these bikes.You need at least 12.5v at the terminals for reliable starting.Dont go by the voltmeter in the clocks either,...its not reliable.
The backfiring could be a leaking exhaust.My old 999 did that when the exhaust seals failed.It could also be down to unburnt fuel.
I'm thinking the latter.
Early 999/749's used to eat coils,...especially the front cylinder.Moisture from wet roads or a damp garage can creep in and cause corrosion.2005 onwards bikes had an improved version that is a straight swap.(The coils are built into the spark plug caps,btw.)
So,
1.Fresh fuel.
2.Check battery.
3.Check/clean plug caps.
Let us know how you get on.
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  #4  
Old 16-Mar-2012, 08:50 PM
jangol jangol is offline
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Thanks to you all.

Will go through the list over the next few days & feedback...

Did add some fuel when I picked the bike up back in Jan.. but have not ridden it to be honest since I got her....

when you say new/clean fuel, do you mean drain what's left & add new, or just top up new?

JA
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  #5  
Old 16-Mar-2012, 09:14 PM
Putney Putney is offline
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I don't like the idea of leaving old fuel in the tank over winter... Especially if the bike could be left in cold conditions.. Condensation can form in the tank and water can get into the fuel… Tank can rust fuel filter can bung up… My bike is always indoors over winter.
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  #6  
Old 16-Mar-2012, 09:18 PM
jangol jangol is offline
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Thanks for the heads up.. looks like I'll be purchasing a fuel filter also...
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  #7  
Old 16-Mar-2012, 09:59 PM
Putney Putney is offline
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Quote:
Originally Posted by jangol
Thanks for the heads up.. looks like I'll be purchasing a fuel filter also...

A Worth while change anyway, the 749-999 tanks rust easily on the inside...
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  #8  
Old 19-Mar-2012, 08:56 PM
jangol jangol is offline
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Any ideas on what Plugs I should get? & where from, also after a fuel filter...
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  #9  
Old 19-Mar-2012, 10:07 PM
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DSC Member kiwicoops kiwicoops is offline
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Quote:
Originally Posted by Putney
the 749-999 tanks rust easily on the inside...

I recall reading that to preserve tanks its best to put them away full to the brim ,no room for condensation and no bare metal to corrode. I dont think fuel goes off like it once did? (but don't quote me on that)

pete


"Nearly all men can stand adversity, but if you want to test a man's character, give him power". Abraham Lincoln ...53 horse power should do it
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  #10  
Old 19-Mar-2012, 10:36 PM
cockneyjanner cockneyjanner is offline
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Quote:
Originally Posted by kiwicoops
I recall reading that to preserve tanks its best to put them away full to the brim ,no room for condensation and no bare metal to corrode. I dont think fuel goes off like it once did? (but don't quote me on that)

pete

Yep, that's what I believe. I work on aircraft and we always put them to bed with tanks brimmed if its for an extended period. The best way to stop the condensation is to completely fill the tanks.
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