Overheated/mixture too lean due to leaking exhausts - the whitening of the tip. Replace with new plugs of correct grade. The soot is likely from too much choke - did the plugs come out right after starting?
Replace gaskets and torque exhaust bolts to required spec should do the trick. Be sure to get the old compressed gaskets out of the manifold recesses before replacing with new gaskets; make sure to seat the exhaust headers snugly before tightening - you will need to loosen all exhaust mounting points to do this properly.
Agree also good time to check air filter.
Regards,
Sean
Quote:
Originally Posted by andrew184
Replaced my spark plug today. I also checked the tightness of the exhaust fittings (headers and clip connecting downpipes to exhaust ) - these were very loose, which would explain some difficulty I have been having with starting it without full choke, even in summer .
The condition of the spark plug seems rather strange to me. I last changed it between 5-8,000 km ago - can't remember for sure. What do you think from these photos?
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