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Post by julian2569 on Mar 5, 2018 22:32:03 GMT 1
Good evening i have a 1981 lc250 7k miles from new starts easy ticks over lovely when pulling off shes a bit spluttery soon as you hit the band she takes off but smokes like the red arrows display team also lots of oil in the silencers which i have washed out thinking itv was that burning off causing the smoke any ideas guys cheers
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Post by kostas on Mar 6, 2018 6:59:01 GMT 1
I would check the oil pump for correct pulley adjustment.
Also check that you have the correct pump fitted.
Kostas
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Post by midlifecrisisrd on Mar 6, 2018 9:16:58 GMT 1
As said check the oil pump
They can stick meaning they pulley doesn't spring back out so supplies full throttle oil at all times
Also if the non return valves are dirty it allows oil to siphon past while not running
Other that that you are looking at oil leaking in from the gearbox which would either be rh seal (would only smoke on rh) or a leaking crankcase joint ( unlikely if never been apart)
Steve
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Post by julian2569 on Mar 6, 2018 9:48:21 GMT 1
Cheers guys both exhausts smoke loads bike goes well tho wouldnt know how to check the pump think i will send it off to get looked at
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Post by julian2569 on Mar 6, 2018 9:48:38 GMT 1
Cheers guys both exhausts smoke loads bike goes well tho wouldnt know how to check the pump think i will send it off to get looked at
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Post by simon998 on Mar 6, 2018 12:47:40 GMT 1
Arrow on here doe's oil pump refurbs, very highly regarded.
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Deleted
Deleted Member
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Post by Deleted on Mar 6, 2018 14:17:44 GMT 1
Arrow is the ONLY guy to send your pump to
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Post by kostas on Mar 6, 2018 16:24:01 GMT 1
Incorrect adjustment / installation will not be solved by sending away the pump.
Get yourself a Haynes manual or use the forum search function for more info.
Or open the pump cover and start by posting some pictures of the pulley with closed and open throttle.
Kostas
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Post by arrow on Mar 6, 2018 16:53:01 GMT 1
Incorrect adjustment / installation will not be solved by sending away the pump. Get yourself a Haynes manual or use the forum search function for more info. Or open the pump cover and start by posting some pictures of the pulley with closed and open throttle. Kostas I've asked him for some photos of the pulley positions before anything else. |
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Post by risolc on Mar 6, 2018 17:33:50 GMT 1
Mine always smoked like a train-As back when I was using as daily commuter for short journeys it never got hot enough.
Sent pump to arrow it turns out it was a 350 pump on my 250!
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Post by oldbritguy on Mar 7, 2018 23:27:37 GMT 1
I would totally agree with the comments above regarding the adjustment of the oil pump as a first port of call. Also check it is returning when the throttle is backed off. The spring sometimes stretches out or breaks. The bike has not done too many miles so is unlikely the motor is worn out however if it has been standing for a while the spigot non return valves may, as midlifecrisis says, be crudded up allowing oil to slowly run into the motor when switched off. Another thing to consider is the content of the fuel tank. I once went through an expensive engine rebuild on a new bike i bought only to find out the previous owner poured loads of engine oil into the tank to stop it rusting up!!!!
Start simple, check the settings and operation of oil pump return spring and take her for a good long run.
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Post by shaunthe2nd on Mar 9, 2018 2:06:07 GMT 1
Leave as it is, love it when it pumps out the smoke and unlikely to seize! My 4-stroke mates love/hate following me Lol
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Post by Tobyjugs on Mar 9, 2018 14:58:57 GMT 1
I've been out for a couple of rides with the hipsters and I always end up at the back. This is not such a problem because I can speed them up by overtaking them 😂🤣😂
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Post by Tobyjugs on Mar 9, 2018 15:02:17 GMT 1
On serious note you should be using approximately 2.5 tanks of fuel for one liter oil.
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