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smoking on r/h cylinder on h2b
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lol30



Joined: 30 Dec 2016
Posts: 26


Location: norfolk
PostPosted: Mon Jun 19, 2017 6:46 pm  Reply with quote

hi all
my h2b has a totally rebuilt engine which i am still running in but when i park it up for a week or so then go out for a run it smokes more on the right hand cylinder especially under load but after about 6 or 7 miles its fine any ideas ? it always starts 1st time & idles perfectly
i did read something about oil pump modification but is that on the early bikes ?
regars laurie
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chris todd
3rd gear


Joined: 30 Apr 2013
Posts: 312


Location: northumberland
PostPosted: Mon Jun 19, 2017 6:53 pm Reply with quote

keep an eye on the gearbox oil level then you will know if the crank seal is passing did you fit the o ring that sits on the collar?
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Wolfie
Too much time on my hands


Joined: 24 Oct 2007
Posts: 4575


Location: South, North and East Yorkshire, honest!
PostPosted: Mon Jun 19, 2017 9:19 pm Reply with quote

It could also be the Non Return Valve (NRV) in that Cylinder's oil feed pipe.

This is my favourite since you say it clears up after a few miles.

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lol30



Joined: 30 Dec 2016
Posts: 26


Location: norfolk
PostPosted: Tue Jun 20, 2017 9:14 am Reply with quote

hi & thanks for replies
i never rebuilt the engine so i dont know about the o ring & i dont think the oil level has gone down & do you mean the non return valve on the carb or the crank feed ?
regards laurie
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Wolfie
Too much time on my hands


Joined: 24 Oct 2007
Posts: 4575


Location: South, North and East Yorkshire, honest!
PostPosted: Tue Jun 20, 2017 10:09 am Reply with quote

Could be either or even both, but the Crank feed is most likely to give your symptoms.

Came to work on the S1 today, she smoked like trooper first few miles of M62 (maybe I just imagined people putting their wipers on behind?), then it cleared down to a reasonable level for the rest of the journey.

When I got here, the back end is absolutely covered in oil splats.. she hadn't been started for three weeks.. I do know that my NRVs are seeping.
I'm guessing that the Exhausts contain a fair bit of oil again now, I did empty them just before France.

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lol30



Joined: 30 Dec 2016
Posts: 26


Location: norfolk
PostPosted: Tue Jun 20, 2017 12:13 pm Reply with quote

hi
thanks again for replies
cleaned carb valves with some carb cleaner today & i know the crank valve oil line is ok as its quite new went for a run & all seems fine but i must admit that my right hand pipes are all splattered with oil when i came back does this sound normal for a triple ?
regards laurie
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Wolfie
Too much time on my hands


Joined: 24 Oct 2007
Posts: 4575


Location: South, North and East Yorkshire, honest!
PostPosted: Tue Jun 20, 2017 12:51 pm Reply with quote



This is excessive which is why I think it's probably pooled in the pipe, the side of the mudguard and rear of the number plate should be the only spotty areas.

At least I'm confident that there is oil getting through.. I can do without the mess though, lovely and clean when we set of she was..

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lol30



Joined: 30 Dec 2016
Posts: 26


Location: norfolk
PostPosted: Tue Jun 20, 2017 2:42 pm Reply with quote

hi wolfie
i see what you mean it will take some cleaning off,mine is more on the back end of the right hand pipes & over the back wheel not quite as much as yours
laurie
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