dodgey spark plug fitting?

[breakz187]

When I removed the plugs they were very loose and both were corroding...It’s my first time changing the plugs on a bike but it can’t be good having the seals of the plug all messed up like that. Im sure its not normal but i dunno, my cars dont get as exposed to the elements as my bike...

The replacement of the pair have cued a slight problem i have when starting from hot, i.e. filling up a petrol station and starting up again - it would start but stall shortly afterwards when coming down to idle.

Torque up your plugs!

Looks like you got them out just in time, i put copper grease on the threads before putting them in ad don't forget the plugs have arrows on them which need to face the exhaust side of the head. I didn't know that until the second time i did them!

Got a fender extender??? This will help stop water getting to the front plug...



I'd also recommend putting a bit of silicone sealant on the plug cap to help prevent water from getting in and clean out the drainage hole.

Sounds like you might not have the plug caps/s seated back on properly.

Give them a good push, you should hear them 'click' as they seat down .. (its the metal bar in the cap clicking on the top threads).

[breakz187]

I have a fender extender on there already, only had it about 7 weeks, and only just got around to changing these. This time i used some high melting point grease on the leads rubber seal.

The new ones are now on nice and tight/securely. Really pushed the leads onto them and used a bit of WD40 inside to clear up an mess/rust.

Just really surprised the previous own, or his mechanic didnt do a better job. Loose leads and the plugs werent torqued up at all.

I wish it made a massive difference with my bike but it didnt do much. Still runs sweet.

[yorkie_chris]

Be careful torqueing plugs up, you only need to crush the washer enough to seal it. NGK plugs are supposed to be done finger tight plus half a turn according to the back of the box IIRC.

Use copper slip too.

Originally Posted by yorkie_chris

NGK plugs are supposed to be done finger tight plus half a turn

Correct.

Originally Posted by breakz187

Just really surprised the previous own, or his mechanic didnt do a better job. Loose leads and the plugs werent torqued up at all.

This was the problem with my sons SV650SY at the rear, along with other issues.