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Crappy yellow spark.
Posted: Fri Sep 30, 2011 8:54 am
by ArmandTanzarian
Scoot hasn't been starting as well as it should lately and the spark looks rather yellow and feeble. Is this likely to be a knackered CDI
Re: Crappy yellow spark.
Posted: Fri Sep 30, 2011 10:38 am
by coaster
ArmandTanzarian wrote:Scoot hasn't been starting as well as it should lately and the spark looks rather yellow and feeble. Is this likely to be a knackered CDI
It's possible but have you tried a different plug/cap/lead? what sort of readings do you get off the green LT and pickup? I'd check all of those first as a matter of course as well as trying another CDI. IMHO it's always a good idea to have a cheap (£10) indian CDI as a spare/get you home for just this sort of situation.
Re: Crappy yellow spark.
Posted: Fri Sep 30, 2011 10:00 pm
by ricalnic
was working on an old moped last week (1980's NOS Tomos 25yr old 50cc thing only 6 miles on clock!) good spark off plug against an earth, but not at the electrode, so changed plug, still nothing, changed HT cap, WOW what a strong spark now, nearly blew my mates finger 'off' PMSL
Re: Crappy yellow spark.
Posted: Sat Oct 01, 2011 1:15 pm
by Andy Pickering
Tomos 25yr old 50cc thing
The catalogue jobby
Re: Crappy yellow spark.
Posted: Sun Oct 02, 2011 10:15 pm
by ricalnic
Lam46 wrote:Tomos 25yr old 50cc thing
The catalogue jobby
The very one. I remember our local Woolco/Woolworths selling them in the 80's for £175, and the local paper printing a £25 off voucher
got it started, mate nearly put it into the front of his company car as he revved it off the centre stand -centrifugal clutch, so wheel was spinning, PMSL as he tripped over the toolbox saving it. Then off down the road, 2 speed auto, funny as fook.