illvibetip Posted February 16, 2011 Share Posted February 16, 2011 basically, my speedometer doesnt seem to know what my wheels are doing.Its ok up to 100 kmph (it has km in bigger numbers on the face so I tend to pay more attention to that). After that its doubtful and seems to get stuck around 110/120 kmph.At first I thought there was something wrong with the engine or it was too windy or something because I couldnt make it go any faster. So I took it into a tunnel (as there doesnt seem to be any wind resistance) and hammered it. I know I must have been going at least around 90/100 mph and the needle/pointer started swinging wildly up and down .I just had my speedo/rpm clocks changed (as I crashed and smashed the casing on the speedo) with second hand ones.I can easily go back to where i got this done and ask them to sort it out for free.Truth is, Im trying to get into the habit of fixing things myself because Im a bit green and dont know much about repairs.QuestionIs this an easy job or should I leave this one alone?(If it is - how do you fix it?)thanks v.much Quote Link to comment Share on other sites More sharing options...
rennie Posted February 16, 2011 Share Posted February 16, 2011 I would think that either the bottom of the cable isn't seated properly or the cable is kinked somewhere should be easy to sort yoursel Quote Link to comment Share on other sites More sharing options...
illvibetip Posted February 16, 2011 Author Share Posted February 16, 2011 cheers.so you mean i should check it over to make sure the cable is straight? ok, i'll start there. actually, he did say he'd changed the cable too... Quote Link to comment Share on other sites More sharing options...
rennie Posted February 16, 2011 Share Posted February 16, 2011 yes, there's an inner cable, which spins,and an outer sheath, so if the inner isn't firmlyand properly in, at either end, or if the outer is bent/kinked/damaged/routed wrong, it won't work properly. Quote Link to comment Share on other sites More sharing options...
illvibetip Posted February 16, 2011 Author Share Posted February 16, 2011 cheers. Ill get on to it tomorrow see if I cant fix it... Quote Link to comment Share on other sites More sharing options...
Matt Strange Posted February 17, 2011 Share Posted February 17, 2011 It sounds more like the replacement speedo is knackered to me. If it were the cable then it would likely affect the reading at all speeds rather than @ 100-odd kmh. I remember the old clocks in the fiesta/escort cars, they had the same (common) problem where they wouldn't go show an increase in speed past a certain point.What bike is it, if it's a 'Eddy current' type speedo then this is almost certainly the problem. Quote Link to comment Share on other sites More sharing options...
rennie Posted February 17, 2011 Share Posted February 17, 2011 could well be the speedo!but he needs to check the easy stuff first! it was him saying the needle was jumpingabout that made me think it might be the cablecatching. Quote Link to comment Share on other sites More sharing options...
illvibetip Posted February 18, 2011 Author Share Posted February 18, 2011 im ging to give it a check over in the morning (korean time). If I cant find out whats the problem its going in. Ill let you know what the problem is/was.cheers both for input! Quote Link to comment Share on other sites More sharing options...
Matt Strange Posted February 18, 2011 Share Posted February 18, 2011 (edited) Well you do have to remove the cable before you look at the speedo, i was hoping he had the common sense to look at that first! . The symptons he described though are classic buggered speedo . You can test a speedo by filing square an old drill bit, sticking it in an electric drill on high speed setting, and operating the speedo via the drill. Edited February 20, 2011 by Matt Strange Quote Link to comment Share on other sites More sharing options...
illvibetip Posted February 19, 2011 Author Share Posted February 19, 2011 i was hoping he had the common sense to look at that (the cable) first! hmm... actually, I know very little about bikes/repairs so I wouldnt have known what to 'specifically' check the cable for (eg kinks) if rennie hadnt pointed that out - as a starting point. If it was a case of my just having 'common sense', i wouldnt have needed to post on this forum because I have been fixing mountain bikes for years. But its not a mountain bike, its a lot more complicated than that. Hence the fact that I ask for technical advice.Peace. Quote Link to comment Share on other sites More sharing options...
Matt Strange Posted February 20, 2011 Share Posted February 20, 2011 (edited) i was hoping he had the common sense to look at that (the cable) first! hmm... actually, I know very little about bikes/repairs so I wouldnt have known what to 'specifically' check the cable for (eg kinks) if rennie hadnt pointed that out - as a starting point. If it was a case of my just having 'common sense', i wouldnt have needed to post on this forum because I have been fixing mountain bikes for years. But its not a mountain bike, its a lot more complicated than that. Hence the fact that I ask for technical advice.Peace.I suppose i could have written that slightly better, as in 'i was hoping he had the common sense to look at that (the cable) first, following your sound advice Rennie'. You have to take the cable off before you even look at the speedo, so you'd look at that first.....wouldn't you?.Anyway, yeah thanks for the appreciation of my time giving you sound advice & some insider tips from someone who actually is at least partially trained in fixing motor vehicles! (i finished my mechanic apprenticeship). Gah, 'the internets' and how everyone gets wound up by the slightest little thing.Ligten up a bit dude, I just might not bother next time! Edited February 20, 2011 by Matt Strange Quote Link to comment Share on other sites More sharing options...
illvibetip Posted February 20, 2011 Author Share Posted February 20, 2011 well, if it makes you feel any better, you were, ahem... right Quote Link to comment Share on other sites More sharing options...
Matt Strange Posted February 20, 2011 Share Posted February 20, 2011 The only thing that makes me feel "better" is that you know what the problem is now, ihope all is sorted & it hasn't cost you too much Quote Link to comment Share on other sites More sharing options...
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