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spark plugs

PostPosted: Tue Dec 01, 2015 8:08 pm
by kennystag
Hi All,
What spark plugs would you recommend for a GP 150.
Cheers
Stag

Re: spark plugs

PostPosted: Tue Dec 01, 2015 10:52 pm
by GP240
Champion N4

Re: spark plugs

PostPosted: Wed Dec 02, 2015 11:10 am
by rossclark
Never had any trouble with NGK as long as you buy genuine, not fakes from ebay

7 rated for low speed

8 for motorway / high speed / tuned

There's equivalence charts for Champion / NGK / NipponDenso ratings on

https://www.boschsparkplugs.net/learnin ... sion-chart

Re: spark plugs

PostPosted: Thu Dec 03, 2015 8:08 pm
by JETEX
As a car mechanic, I prefer NGK for cars. Champion went off the boil, but now seem to be making a comeback. I prefer Champion for the Lambretta. Not fussed at all on Bosch spark plugs, although other Bosch electrics / electronics are spot on.

Re: spark plugs

PostPosted: Fri Dec 04, 2015 8:07 pm
by Fireman Ash
Both mine are Champion, for some reason a nicer big fat spark, NGK seemed a weaker spark, just my experience, both scoots standard 6v set up