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Sooty plugs

Printed From: rsvr.net Forums
Category: Tuono
Forum Name: General & Technical
Forum Description: Everything and anything to do with the Terrific Tuono... the ultimate Streetfigher!
URL: http://www.rsvr.net/forum_posts.asp?TID=29381
Printed Date: 27 Mar 2026 at 02:26
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Topic: Sooty plugs
Posted By: bullitt1964
Subject: Sooty plugs
Date Posted: 30 Sep 2021 at 18:22
Hi guys my bike is running a lot better using slight throttle but not perfect,have put on new one way valve old one was knackered.
Have put in new plugs and the 2 plugs in front cylinder look perfect but the 2in rear cylinder are sooty, does this mean I need throttle bodies balanced
Or is there something else I can do first, sorry for sounding like a numpty
Many thanks dave 




Replies:
Posted By: Spoonz
Date Posted: 30 Sep 2021 at 19:29
The rear cylinder should run 0.5% richer than the front so expect slight differences. Having the CO checked and adjusted would be the next step if you think itโ€™s more than slight. 


Posted By: bullitt1964
Date Posted: 01 Oct 2021 at 13:18
Many thanks for reply, will leave alone then although my mate says it smells really rich 
Cheers dave 


Posted By: rsvwalt
Date Posted: 01 Oct 2021 at 14:34
Yep mine does, even though I had Griff tweak the balance. 
It smells of of petrol after a warm start during a ride out too, but it runs fine.
I had to put some E10 in at the weekend after running it on super and couldn't tell any difference. 


Posted By: bullitt1964
Date Posted: 01 Oct 2021 at 16:54
Will leave alone then thanks for reply ๐Ÿ‘



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