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zakboy
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« Reply #15 on: November 21, 2010, 06:24:46 PM » |
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hi cabman77, thanks for your info, being the later model i am fortunate to have the mikuni bst40s, but the mikuni and hitachi,s did appear through out the range of viragos at diffrent years, but well pointed out cabman77
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Give me the strength to except the things in life i can not change
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Hagar
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« Reply #16 on: November 21, 2010, 08:55:00 PM » |
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Evening , my old girls got Hitachi Carbs and I picked up a dyno kit for it off ebay from the states for about $40 . Hagar: your running problem is most probably the cdi box. Does the rev counter play around when the rear cylinder misfires?? There is a man in the states that re cons them for $99 which is better than £350 for a replacement.
Yep the rev counter dies till you ease off the throttle ... then she picks up and the rev counter kicks in again , I've tried a second hand cdi box ( from an alledged running bike ) and there was no change in the running , when she was in the garage the guy put the original one back on as he said it seemed to run a bit better . cheers .. Hagar .. |
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" When you have to kill a man , it costs nothing to be polite. " .. Winston Churchill
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zakboy
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« Reply #17 on: November 21, 2010, 09:39:50 PM » |
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hi there hagar,well its nice to know that these parts can be found, as I'm a little out of my comfort zone when it comes to the technical side of the carbs can any one tell me exactly how the dynojet kits work and what it doz i think when and if it comes to modifying my exhaust system and i get any probs with the ruining of the trike and a dynojet kit is going to be the answer it would be great to under stand how the kit works for future reference. cheers lads
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Give me the strength to except the things in life i can not change
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Hagar
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« Reply #18 on: November 22, 2010, 12:57:46 AM » |
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Evening , no idea how they work but heres a link to the US dynojet site .... http://www.dynojet.com/jetkits/motorcycle/yamaha.aspxthese are the same fitting instructions I got with my kit ... ( did'nt pay $85 for my kit though ..  ) http://www.dynojet.com/pdf/4114.pdfThe only thing I noticed was the throttle response , it cut down on throttle lag ( the power comes on from the 1st mm of throttle twist ) , ... made the first couple of times in traffic interesting ... .. Hagar .. |
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" When you have to kill a man , it costs nothing to be polite. " .. Winston Churchill
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zakboy
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« Reply #19 on: November 22, 2010, 08:20:00 AM » |
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good morning hagar, thank you again for your info, the only price i have found over hear is £80.83 from (tts performance parts) don't know if that's an average price or not as i haven't shopped around yet. all the best zak
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« Last Edit: November 22, 2010, 08:23:42 AM by zakboy »
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Cabman77
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« Reply #20 on: November 22, 2010, 10:25:53 AM » |
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http://homepage.mac.com/ddenowh/TCI/index.html take a look at this Hagar. Until I saw this I was convinced a CDI unit would either work or it wouldn`t, how wrong was I?  I got lucky and picked one up at an autojumble for a fiver and it worked fine. Sorry for sidetracking this thread Zakboy
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zakboy
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« Reply #21 on: November 22, 2010, 12:11:12 PM » |
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no prob cabman77 your very welcome.
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Give me the strength to except the things in life i can not change
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BikerGran
Hero Member
Karma: 94
Posts: 10604
Gran Turismo
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« Reply #22 on: November 22, 2010, 02:25:36 PM » |
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I wonder iof that's just a Virago problem or if it could apply to other bikes? The lad who bought my Superdream is having similar problems and has just stripped the carbs for the umpteenth time.
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You don't stop havin fun because you get old - you get old if you stop havin fun!
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zakboy
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« Reply #23 on: November 22, 2010, 04:08:09 PM » |
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hi bikergran thanks for popping in, i think it is a problem that may or may not develop on any bike when you change the origanal exhaust system to a modified system, i have not modified mine as yet but may have to,so its not a problem for me yet,if i do modify it i wont know until i run the bike if its going to be a prob or not, if i do have a prop then the dynojet kit appears to be the answer .all the best zak
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Give me the strength to except the things in life i can not change
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BikerGran
Hero Member
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Gran Turismo
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« Reply #24 on: November 22, 2010, 09:46:57 PM » |
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Sorry Zak, I was referring to Cabman's post where he said |
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You don't stop havin fun because you get old - you get old if you stop havin fun!
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Cabman77
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« Reply #25 on: November 24, 2010, 09:53:37 AM » |
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After looking into this CDI/TCI (there is a difference but we all know what I mean? ) problem I would say Bobbi that it could happen to any bike with electronic ignition. It`s basically a problem with the components and standard of soldering. Most standard units use components rated at 85 degrees C and with constant heating up and cooling down the solder gives up the ghost. My bike started this problem after being laid up for a while and a friend bought a Virago that had been stored for a few years and after a week his did the same. Hagar take a look at this http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=280593638308&ssPageName=ADME:B:SS:GB:1123#vi-desc |
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..........and Joshua entered Jericho on his Triumph..............
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