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Steve M Forums Junkie Location: Adelaide Registered: June 2003	18RGU help needed urgently Wed, 25 June 2003 14:26 Here's the deal: We have a very common but irregular (no one cylinder) misfire at idle, we can't seem to get rid of it through altering the idle mixture or balance or any of that. The idle vacuum is at 330mm/hg (standard) on both carbies. Under full throttle at 3000RPM the engine makes odd noises and misfires like a bitch. It also does this under any full throttle work going up hill. Basically whenever it's at full throttle for more than just a kick up. We've tried changing a few things to do with the dizzy vacuum advance and they haven't made any difference. We have had it connected before the butterfly valve and disconnected (holes plugged), no difference (we couldn't try after the butterfly valve because one of the front coolant hoses (thermostat bypass) blew and we had to roll it home (all downhill luckily). I guess we should have replaced that hose during the rebuild!!) We are going to try putting the old 18rc dizzy in to see if that makes any difference. If that isn't it then we will have a look at the carbies (newer model solexes, the unpopular ones) Any suggestions of what the hell might be causing the problems and any remedies would be greatly apreciated! Thanks. Oh, and the compression is 183-184psi all around so there's nothing wong with the head or rings or anything like that. by the way, does anyone know what the diaphragms built into the later model mikuni/solexes are for?? [Report message to a moderator]

	Subject	Poster	Date
	18RGU help needed urgently	Steve M	Wed, 25 June 2003 14:26
	Re: 18RGU help needed urgently	ra23celicachick	Wed, 25 June 2003 22:33
	Re: 18RGU help needed urgently	Blaze	Wed, 25 June 2003 23:04
	Re: 18RGU help needed urgently	Shteeve	Thu, 26 June 2003 00:45
	Re: 18RGU help needed urgently	RA28midge	Thu, 26 June 2003 00:50
	Re: 18RGU help needed urgently	Steve M	Fri, 27 June 2003 15:18
	Re: 18RGU help needed urgently	Steve M	Fri, 27 June 2003 15:28
	Re: 18RGU help needed urgently	Blaze	Sat, 28 June 2003 05:27
	Re: 18RGU help needed urgently	Mr DOHC	Sat, 28 June 2003 08:33
	Re: 18RGU help needed urgently	Blaze	Sun, 29 June 2003 11:01
	Re: 18RGU help needed urgently	earlyrolla	Sun, 29 June 2003 12:50
	Re: 18RGU help needed urgently	Steve M	Mon, 30 June 2003 00:46
	Re: 18RGU help needed urgently	Shteeve	Mon, 30 June 2003 03:12
	Re: 18RGU help needed urgently	Aussie	Mon, 30 June 2003 09:13
	Re: 18RGU help needed urgently	Snyper	Mon, 30 June 2003 09:28
	Re: 18RGU help needed urgently	CelicaRA45	Mon, 30 June 2003 10:39
	Re: 18RGU help needed urgently	earlyrolla	Mon, 30 June 2003 11:29
	Re: 18RGU help needed urgently	celicaboy	Mon, 30 June 2003 21:16
	Re: 18RGU help needed urgently	Steve M	Wed, 02 July 2003 07:01
	Re: 18RGU help needed urgently	gold28	Thu, 03 July 2003 00:26
	Re: 18RGU help needed urgently	Steve M	Mon, 14 July 2003 11:34

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