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bourney2007
07-10-2008, 05:30 PM
I've just put my new top end on and i'm having to bump start it to get it going. Whereas my the top end i have just replaced started off the button easily. I'm wondering wether the spark plug is buggered, would it be worth buying an iridium and i am using grade 8 plugs, is this right?

I'm thinking of getting this. Would i actually notice a difference though?
http://cgi.ebay.co.uk/NGK-IRIDIUM-IX-SPARK-PLUG-BR8EIX-5044_W0QQitemZ260260357906QQihZ016QQcategoryZ25623 QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


Or is my spark plug not at fault?

What happens is you press the starter button and it turns the engine over. It constantly sounds like it wants to fire but it never does for some reason. However, give it a little push and it fires right up. odd?

EDIT- By the way, my battery is fully charged and i am using the choke.

luigi1991
07-10-2008, 05:33 PM
if you can bump it then im not sure its a spark plug problem
why have u changed the top end yet again?

bourney2007
07-10-2008, 05:35 PM
if you can bump it then im not sure its a spark plug problem
why have u changed the top end yet again?


the other one seized.

It does it when it's hot aswell, which is very wierd.

Rs50_2007kris
07-10-2008, 05:35 PM
Seized

edit - damn you beat me haha

Royzx
07-10-2008, 05:37 PM
I use the iridium grade 8, no problems at all.

swedish89
07-11-2008, 06:42 AM
Hi,I have this problem made my battrie flat so always bump at the moment nedd to charge it up.

shaun
07-11-2008, 08:16 AM
Personally I wouldn't spend the extra on an iridium plug, I had two and both didn't last any longer than the normal plug, I have a normal plug in there now and it's been in there a lot longer than the iridium ones I had.

Josh Plunkett
07-11-2008, 09:56 AM
Take the plug out, attach the HT lead to it rest the spark plug on the engine so u can see the spark, turn the engine over if it sparks then it works.
I had this problem when it wouldnt start off the starter, that was due to bad compression. But im not sure in your case.

01dabreoo
07-11-2008, 10:26 AM
Take the plug out, attach the HT lead to it rest the spark plug on the engine so u can see the spark, turn the engine over if it sparks then it works.
I had this problem when it wouldnt start off the starter, that was due to bad compression. But im not sure in your case.

Clearly he has a spark, how else would it run once bumb started.

luigi1991
07-11-2008, 10:37 AM
its a fuel related problem.

bourney2007
07-11-2008, 12:51 PM
its a fuel related problem.



I was thinking that. Maybe i need to mess about with the idle mixture screw a bit.
I might have a tinker with it later

I think i might replace the plug anyway. It's missing like a bitch.