alrick
Velociraptor
Posts: 27
Reg: Apr 18, 2014 14:22:52 GMT
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Post by alrick on May 9, 2015 16:18:32 GMT
Took the bike for its MOT today and all was good riding home stopped at some lights and heard some of sounds a bit like things pinging off engine cases or like when grit stones hit your bike and the the engine just stopped. Nothing, starter won't turn it over. I was on a hill about 1/2 a mile from where I work so rolled it down the hill and knocked it in gear and it was locked solid ( I was doing 40 when I let the clutch out ) had to push it and lock it up at work. Now what?? I think the lump is foooked but surely this doesn't happen to 1200 bandits. I don't have the skills to rebuild so any ideas??
Grrrrrrr!!
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Deleted
Posts: 0
Reg: May 19, 2024 0:42:49 GMT
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Post by Deleted on May 9, 2015 16:25:33 GMT
i would take the sump off and see what fall,s out
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Post by bigkenx on May 9, 2015 16:26:06 GMT
Oh dear wasn't valves was it , best Go through all the standard checks first but sounds like you will need strip the engine find out what's gone wrong sorry mate
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Post by jaydee on May 9, 2015 16:36:03 GMT
If your a total novice to engine work, start by draining the oil in to an clean container. If you can take off the casings . If the 'pinging noise' was coming from engine cases, it could be something like the clutch or starter clutch coming apart. Inspect the oil for anything that shouldn't be in it like metal etc. Doesn't sound too good whatever happened.
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alrick
Velociraptor
Posts: 27
Reg: Apr 18, 2014 14:22:52 GMT
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Post by alrick on May 9, 2015 16:43:40 GMT
Cheers! I guess drain the oil see how shiney it is, think the clutch is ok as I rolled down the hill in gear after I tried to bump it. Was going to treat it to a suspension upgrade next week but that looks out the window now
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Post by fatblokeonbandit on May 9, 2015 19:47:03 GMT
whrre abouts are you??
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alrick
Velociraptor
Posts: 27
Reg: Apr 18, 2014 14:22:52 GMT
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Post by alrick on May 9, 2015 21:07:01 GMT
I'm in Ipswich. Strange thing, I left it where I work and we have a couple of mechanics, also bikers, he text to say not to worry had got it started and all seemed fine?? Had a ride around the car park etc .Can't quite believe it. Will drop the oil etc next week and see what it looks like, it's all a bit odd as it seemed locked when I left it, starter wouldn't turn nothing, bloody pushed it half a mile to get it there
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Post by rusty on May 9, 2015 21:23:10 GMT
I'm in Ipswich. Strange thing, I left it where I work and we have a couple of mechanics, also bikers, he text to say not to worry had got it started and all seemed fine?? Had a ride around the car park etc .Can't quite believe it. Will drop the oil etc next week and see what it looks like, it's all a bit odd as it seemed locked when I left it, starter wouldn't turn nothing, bloody pushed it half a mile to get it there sounds like a problem I had on an old h***a I had years ago...riding down a duel carriageway at 70mph (honest) and the rear locked without warning....the skidmark crossed both lanes and went on for bloody ages:-/ Got it in the hard shoulder and checked as much as I could, saw nothing so tried to start it and bingo...rode it home for a better look but never did find the problem..kept the bike for about a year after, riding every day without a single problem
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Post by teaman on May 12, 2015 4:39:37 GMT
Not to hijack the thread, but I had a similar episode yesterday. I was out on my first run since the bike had been put together, on my way to the mot. I heard a strange noise similar to what you described. Pulled over to check things out, if I had lost a suspension bolt nut or something, but things looked ok. Rode off and everything was good, the bike ran well all day. I was suspecting it was running abit lean since the jets and needles are stock, and I have a kn filter in the airbox. The bike was hesitating when I twisted the throttle, but it seemed to sort itself out the more I rode. Also had some problems with hanging rpms at 3k, sometimes it helped blipping the throttle, but then it just Stayed there. I finally adjusted the idle and everything was good. I was suspecting an intake leak, but the engine havent been running for a while so maybe things just needs to settle in..
But im a bit worried about running lean, am I going to fry anything or is there no need to worry?
Sorry if im ruining your post, will create a thread instead if necessary
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Post by katana on May 12, 2015 9:33:50 GMT
Running a K&N in stock position in an air box is no worst than using a brand new OEM filter - maybe a little less restrictive so if you wanted to - a little tweek on idle mixture and lift needle half notch and maybe 2.5 points bigger on Main but your unlikely to hurt anything seriously IMO.
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Post by Kristjan on May 12, 2015 9:39:07 GMT
That engine locking seems quite similar to two stroke's piston seizing... is it for lean mixture, overheating or just lack of lube, or whatever - when it cools down a bit, the piston becomes free and it's a runner again? Haven't seen this on four strokes before, though.
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Post by wsn03 on May 12, 2015 15:16:24 GMT
I've only had engine lock on trying to start when fuel was filling up inside my engine because of a leaking needle float valves.
Like Kritjan I too am wondering if this is overheating too caused by lean in the pilot - if it goes away when opening up that would make sense, more fuel coming through. If the mixure screw is too lean this will screw up most cruising, and decceleration wouldn't it, and that is where you spend most time in normal conditions??!!??
For most oilers the recommended is 2.5 turns, 3 max I think I have read on here.
For K&N filter I go 2.5 with no change to pilot or mains from standard. Have you got standard jets?
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Post by kokolis on May 12, 2015 15:16:37 GMT
That engine locking seems quite similar to two stroke's piston seizing... is it for lean mixture, overheating or just lack of lube, or whatever - when it cools down a bit, the piston becomes free and it's a runner again? Haven't seen this on four strokes before, though. 4stroke has more moving parts when overheating happens the first thing that goes wrong is lubrication, if severe you get extra noice (hammering) when cold.
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Post by fatblokeonbandit on May 12, 2015 19:01:02 GMT
Ive had 12 b12's and 4 other b12 powered bikes in various states of tune and never had anything like that happen, nearest symptoms was one ive had I bought off a spotty youff who wheelied it from cold up the hill away from his house every morning until it seized, it would start then there was a clunk and it would be solid, after 10 minutes it would start then clunk again, the big ends were so worn one was spinning in the con rod and then jamming. But the knocking was very obvious..
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Post by screwriverracing on May 12, 2015 19:11:54 GMT
I've seen a badly maintained engine with a similar problem, turned out to be the cams seizing in the bearings when hot, when it cold down it would run again. The head was totally knackered and had to be replaced. Turned out the oil had never been changed just topped up. Cheers SRR
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