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Post by Robjack on Jul 22, 2008 8:53:47 GMT
A while back, I was riding home and the scoot suddenly started coughing and spluttering. I checked the plug and found a speck of what I assume to be carbon in the plug gap. A bit of emery cloth later and all was well. I asked my mate and was told this is a phenomenon called 'whiskering'.
Riding home from the Liverpool rideout on Sunday, same thing happened, this only 3 or 4 hundred miles since last time.
I ride a standard PX200 with a Simonini pipe on, upjetted to a 118. I use Selenia fully synthetic 2-stroke and the plug was a dark chocolate brown colour after a good dual carriageway run.
My question is, am I running too rich and should I return to a standard jet? The jet was recommended by the dealer when I bought the pipe, but if it's too rich will it do any harm to go back down? Or should I put up with this happening occasionally and have peace of mind that I'm not going to sieze?
All advice gratefully received.
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Post by mickey movistar on Jul 22, 2008 23:19:54 GMT
allright rob
sorry to hear about the trouble on way home
i know everyone says about upjetting to a 118 with a differnt pipe but ive always run a 116 with my pipe
i tried last year going to scarbrough running a 118 and it felt a bit sluggish as if it was running rich so im back to a 116 and ive never changed
my plug is always a nice light brown
saying that the plug is a piaggio been there from new lol....getting on now for 11 years old lol
still runs as sweet as a nut as you may of noticed on sunday lol
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Post by hutchie on Jul 23, 2008 0:09:46 GMT
had this problem years ago with a pk that hadnt run for while and was run on mineral based oil before i had it . i de coked the head and used full synthetic and never had any problems after that . i assume its just miniscule flakes of carbon coming loose in the cylinder and while 9999 of them will exit through the exhaust port the other 1 will manage to wedge itself across the plug contacts. so it might be worth a wee look at the barrel and head for carbon build up before altering jet size or mixture
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Post by Robjack on Jul 23, 2008 11:12:44 GMT
Thanks fellas. The first thing I've done is change the plug as I've been told that it might have been a dodgy plug gap. (it never happened before this plug was in?) I'll run it for a while before I take the head off for a peep in. I've also been talking to a mate who has done 20,000 miles on a P2 with a Simonini on the standard jet with no problems, which ties in with what you say Mickey. I'll check the plug again after a few runs and then if it's still dark brown I'll change the jet back to the standard. And yes I did see you go flying past a few times on Sunday Mickey. Looking good mate  |
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sparky
2nd Class Ticket
Posts: 43
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Post by sparky on Jul 23, 2008 14:36:14 GMT
I think he meant your scoot Bully ;D not you
Didnt get much of a chance to catch up on sunday mate
It was the nearest thing ill get to a school reunion
will be about a bit more now-just booked Rhyl with wife and kidz
see you soon
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Post by Robjack on Jul 23, 2008 19:56:07 GMT
I think he meant your scoot Bully ;D not you Didnt get much of a chance to catch up on sunday mate It was the nearest thing ill get to a school reunion will be about a bit more now-just booked Rhyl with wife and kidz see you soon Oh I don't know, that leather jacket is well snazzy ;D |
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