andy_290 Posted February 12, 2006 Report Share Posted February 12, 2006 Hi All, Gutted, went out for my first trial on a 2005 Sherco 290 I recently bought, had a good 3 hours riding and then sat talking to someone on tickover in neutral for 5 mins or so, then I opened the throttle to clean it out and it wouldn't rev properly, there was a kind of delay on the throttle, I opened it wide open and it wouldn't rev out fully, so I decided to take it for a run up the track, but when I put it into 1st gear and released the clutch, it set off in REVERSE!! so I killed it immediately, and since then it won't start?! Any suggestions as to the cause much appreciated! Andy Quote Link to comment Share on other sites More sharing options...
brucej Posted February 12, 2006 Report Share Posted February 12, 2006 I bet that made for a few interesting moments! Could be a sheared flywheel key. I would check it out before trying to start it again. Cheers, Bruce Quote Link to comment Share on other sites More sharing options...
gizza5 Posted February 12, 2006 Report Share Posted February 12, 2006 but when I put it into 1st gear and released the clutch, it set off in REVERSE!! Definate 5 don't care what rules your riding under, going backwards is a 5 Seriously though, used to happen on the old twin shock bultaco's. I was only 12 then and didn't really understand why. If you don't get any answers on here speak to MRS, see if they know the problem Quote Link to comment Share on other sites More sharing options...
gasgasssser Posted February 12, 2006 Report Share Posted February 12, 2006 hi,remember me,the guy who bought the sherco 290 from ntb.Hope you get it sorted mate.Had a few problems with mine also. Quote Link to comment Share on other sites More sharing options...
opdeweegh1 Posted February 12, 2006 Report Share Posted February 12, 2006 It definately sounds like a timing issue. But why it would shear or loosen the flywheel wood ruf key after sitting for 5 minutes is a bit strange to say the least. I would definately pull the flywheel and check it out anyway. Quote Link to comment Share on other sites More sharing options...
jack_h Posted February 12, 2006 Report Share Posted February 12, 2006 (edited) ignition is to retarded and is firering on the upward stroke Edited February 12, 2006 by jack_h Quote Link to comment Share on other sites More sharing options...
essex rider Posted February 12, 2006 Report Share Posted February 12, 2006 my mate on his crappy 50cc used to bump start it backwards and it used to ride backwards dont know why but as mentioned its probably fifing on the up stroke. Or bad fuel (i learnt this in chemistry but im sure you dont want to hear the explanation also i cant remember it ) Quote Link to comment Share on other sites More sharing options...
barrybaines Posted February 12, 2006 Report Share Posted February 12, 2006 I have heard a story about someone bumping there GSXR600 backwards and tried going as fast as poss backwards with disastorous consequences! Quote Link to comment Share on other sites More sharing options...
city trials Posted February 12, 2006 Report Share Posted February 12, 2006 but when I put it into 1st gear and released the clutch, it set off in REVERSE!! Definate 5 don't care what rules your riding under, going backwards is a 5 Why is it when I made the same comment it got deleted. Are you censoring the Americans now Andy? Quote Link to comment Share on other sites More sharing options...
atomant Posted February 12, 2006 Report Share Posted February 12, 2006 but when I put it into 1st gear and released the clutch, it set off in REVERSE!! Definate 5 don't care what rules your riding under, going backwards is a 5 Why is it when I made the same comment it got deleted. Are you censoring the Americans now Andy? <{POST_SNAPBACK}> I deleted it. When someone asks a genuine question in either the bike specific forums or the Technical forums then if someone posts a comment which adds no value to the thread, it gets deleted. The post you refer to had some advice on contacting MRS so I left it in. Quote Link to comment Share on other sites More sharing options...
copemech Posted February 13, 2006 Report Share Posted February 13, 2006 So shut up your crying Craig so we can get on! Either the keyway has sheared, most likely, and only a 50 cent part,or you have a big problem as your crankshaft has inverted! When this happens you usually get a strange feeling in the bum-----near your wallet! Be sure to torque it back properly, the flywheel that is! Quote Link to comment Share on other sites More sharing options...
copemech Posted February 13, 2006 Report Share Posted February 13, 2006 I recall a story where a champ rider on an old Bultaco was killed after the bike went into reverse halfway up a big hill. I think it was the old ones with contact points that would do that. I was rocking the wifes 1.25 in gear once to break loose the sticky clutch when it took off forward, got my attention! Quote Link to comment Share on other sites More sharing options...
andy_290 Posted February 13, 2006 Author Report Share Posted February 13, 2006 Just spoke to MRS, the guy in the workshop that I spoke to said that whoever had the bike before me must have retarded the timing and I need to check it. Quote Link to comment Share on other sites More sharing options...
bob Posted February 13, 2006 Report Share Posted February 13, 2006 Did anybody notice that on one of the races on one of the the indoors Cabestany lost because his bike set off in reverse just as he opened the throttle, but his started ok again afterwards. Bob Quote Link to comment Share on other sites More sharing options...
charliechitlins Posted February 13, 2006 Report Share Posted February 13, 2006 On a semi-related note...2-strokes can bump start backwards. If you are teaching a child to ride, be sure you tell him/her to bail off if the bike stalls on a hill. Small displacement bikes with low compression can fire right up in reverse and really hurt a kid. Quote Link to comment Share on other sites More sharing options...
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