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Post by Nchurmdaz on Jun 20, 2011 11:06:21 GMT -5
Hello, guys! My NTV's gearbox rattles in low revs. In 1st the sound is subtle, turning into noticeable knocking in 2nd and over. Over 3000 rpm the sound vanishes. The problem did not appear out of nowhere, I remember it rattling in low revs for all 9000 miles we've spent together. Red through some reviews and thought that's normal, yet my mechanic says it's going to perish shortly  The bike was built in 1993, and has since traveled ~39.000 miles. Oil is some 300 miles old, 10w40 synthetic Repsol. |
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Post by Jake on Jun 20, 2011 15:45:26 GMT -5
Hello, guys! My NTV's gearbox rattles in low revs. In 1st the sound is subtle, turning into noticeable knocking in 2nd and over. Over 3000 rpm the sound vanishes. The problem did not appear out of nowhere, I remember it rattling in low revs for all 9000 miles we've spent together. NTV’s sometimes delvelop problems with second gear. It depends on how well the previous owners have looked after it.....(see link below): growell.proboards.com/index.cgi?board=engine&action=display&thread=808You could try draining and filtering the oil. If there are any bits of metal in the oil then the damage may be terminal....It may be possible to repair but given the age of the bike it might be cheaper to replace the engine with a decent secondhand one with lower mileage.... growell.proboards.com/index.cgi?board=general&action=display&thread=1512On a less serious note it could just be the oil pump chain (behind the clutch drum) which can stretch and make an annoying rattle or tapping sound at low revs. Also check that there are no loose engine bolts..... growell.proboards.com/index.cgi?board=engine&action=display&thread=1015 |
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Post by hairyuk on Jul 3, 2011 15:34:40 GMT -5
i have came across a similar problem one of my old ntv650,s
if you pull the clutch leaver in the sound changed
i took the clutch cover off
and the bush in the centre of the clutch had play
turned out they have a bush in the centre of the clutch drum
i rang mr honda who said its a compleate new clutch basket
why i said if its only the bush thats worn
well you cant buy it seperately
so i had a new one made up in fosfor bronze
that cured it
mark
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