Mmm ...... another 550J puzzle, any ideas ?

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Alan H
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Re: Mmm ...... another 550J puzzle, any ideas ?

Post by Alan H »

Make sure the crankcases are clear of petrol and oil. Sounds like at least one is claggy - otherwise, carbs.
Last edited by Alan H on Sun Jan 06, 2019 5:58 pm, edited 1 time in total.
Proof that four strokes are over complicated
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Hix2061
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Re: Mmm ...... another 550J puzzle, any ideas ?

Post by Hix2061 »

Alan H wrote:Make sure tbe crankcases are clear of petrol and oil. Sounds luke at least one id claggy otherwise, carbs.
How would I do that Alan. Turn it over without the carbs connected ?
1976 Suzuki GT550A
1973 Suzuki GT550J
Bultaco Sherpa350
Ducati multistrada
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Alan H
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Joined: Fri Aug 05, 2011 6:38 am
Location: Wombwell, Republic of South Yorkshire

Re: Mmm ...... another 550J puzzle, any ideas ?

Post by Alan H »

Favourite is blocked carb jets, but if (say) the fuel tap slightly leaks, you'll get liquid in the cases and when you rev the engine, it'll chuck fluid into the combustion chamber and wet the plug. Worse case is hydraulic lock if there's a lot in the case(s) and a bent rod.
You can clear the cases by disconnecting tbe SRIS pipes underneath.
Proof that four strokes are over complicated
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Hix2061
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Re: Mmm ...... another 550J puzzle, any ideas ?

Post by Hix2061 »

Thanks Alan i’ll try that. I have a spare set of SRIS pipes
1976 Suzuki GT550A
1973 Suzuki GT550J
Bultaco Sherpa350
Ducati multistrada
User avatar
Alan H
Posts: 12104
Joined: Fri Aug 05, 2011 6:38 am
Location: Wombwell, Republic of South Yorkshire

Re: Mmm ...... another 550J puzzle, any ideas ?

Post by Alan H »

No. Don't think spare, just disconnect them and let the 'stuff' escape.
Proof that four strokes are over complicated
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