63 Pan wont start
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63 Pan wont start
Hi, iv'e owned my pan for the last 18 years and this winter treated it to a respray ( the paint work wasn't original )
It hasn't run since - i have changed all the electrics and cleaned the carb but this hasn't cured the problem.
Occasionally it will run but if turned off wont restart - Anyone any ideas.
One thing i have noticed is there is petrol in the manifold , yet the plugs are dry ! Compression seems ok but i am starting to believe that for some reason the engine is not drawing in the fuel ???
It hasn't run since - i have changed all the electrics and cleaned the carb but this hasn't cured the problem.
Occasionally it will run but if turned off wont restart - Anyone any ideas.
One thing i have noticed is there is petrol in the manifold , yet the plugs are dry ! Compression seems ok but i am starting to believe that for some reason the engine is not drawing in the fuel ???
Outstanding HDF Member
Joined: Jun 2007
Posts: 3,306
Likes: 5
From: Bellville, Tx
RE: 63 Pan wont start
How 'bout some vitals: Carb(Linkert?), 6 or 12V, stock valve train/cam, coil?, does it blow oil outbreather when it starts?. Have you: tested for spark when it won't start, checked for leaks at manifold, put volt meter on batt when starting and after turning off. Answering as many of these questions as you can will make it much easier to help you troubleshoot over the internet.
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RE: 63 Pan wont start
Its 1963 with stock engine apart from having solid lifters . 6 V electrics with single points manual advance.
Carb is linkert , i have stripped and cleaned as bowl was full of crud. The main nozzle retaining spring was broken so this has been replaced.
Spark is good - battery ,coil , leads , caps , plugs , points and condenser have all been replaced.
Timing appears ok - only checked with timing mark and fiber cam lining up with mark on breaker cam. However it ran once like this.
Have checked pushrods in case valves not closing.
Bike ran fine last year - tanks , fenders etc removed for respray. All reassembled early this year so stood for approx 6 months.
To be honest i thought i had found the problem with the carb - modern petrol is a nightmare.
Spark was poor hence new electrics. Most parts were 10 years or older afterall.
The bike will sometimes start but if turned off fails to restart. Other times refuses to start at all.
The strange thing is this - even though the carb appears to be flooded and with airfilter removed you can see petrol in the manifold at no time are the plugs wet. Compression feels ok ( have owned bike for 18 years so you do get a feel for it ) will check with tester hopefully this weekend.
Any help gratefully received !!!!!
Carb is linkert , i have stripped and cleaned as bowl was full of crud. The main nozzle retaining spring was broken so this has been replaced.
Spark is good - battery ,coil , leads , caps , plugs , points and condenser have all been replaced.
Timing appears ok - only checked with timing mark and fiber cam lining up with mark on breaker cam. However it ran once like this.
Have checked pushrods in case valves not closing.
Bike ran fine last year - tanks , fenders etc removed for respray. All reassembled early this year so stood for approx 6 months.
To be honest i thought i had found the problem with the carb - modern petrol is a nightmare.
Spark was poor hence new electrics. Most parts were 10 years or older afterall.
The bike will sometimes start but if turned off fails to restart. Other times refuses to start at all.
The strange thing is this - even though the carb appears to be flooded and with airfilter removed you can see petrol in the manifold at no time are the plugs wet. Compression feels ok ( have owned bike for 18 years so you do get a feel for it ) will check with tester hopefully this weekend.
Any help gratefully received !!!!!
Outstanding HDF Member
Joined: Jun 2007
Posts: 3,306
Likes: 5
From: Bellville, Tx
RE: 63 Pan wont start
Assure the intake manifold is tight and get it running if you can. Spray the area at the seals and carb mount gasket with water or alcohol while its running at a high idle. If there is any change in rpm noted, you have an intake leak. Your seals may be old and need replacing. thats really about the only way you would have petrol in the carb and none on the plugs.
I would also dosome research on valve seats and unleaded gas. I'm not real knowledgable on that but I believe you will need to update the seat material if that hasn't been done. If you don't find a leak, post here and we'll do what we can to help. Good Luck Bro!
[IMG]local://upfiles/36103/E33E00E3A971413C84B0CFFC74181ABD.jpg[/IMG]
I would also dosome research on valve seats and unleaded gas. I'm not real knowledgable on that but I believe you will need to update the seat material if that hasn't been done. If you don't find a leak, post here and we'll do what we can to help. Good Luck Bro!
[IMG]local://upfiles/36103/E33E00E3A971413C84B0CFFC74181ABD.jpg[/IMG]
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RE: 63 Pan wont start
Thanks for all your help. I'll check for leaks later this week and let you know how i get on.
Have used a lead replacement / octane boost for years now and seems to work ok. Valves etc checked approx 18 months ago and no noticable wear found. Got to be honest was paranoid for a while when leaded petrol fineshed. Big problem here in the UK with all the old Brit bikes on the road but general feeling was that we all worried for nothing. Having said that i'm sure modern petrol is crap compared to the old leaded. Try leaving some in a jar and when its evaporated look at the **** left behind. Most people i know drain tanks and carb if taken off the road for any length of time . A friends Triumph Trident gunged up after having stood for only 2 months.
Anyway - thanks all for taking time to reply !
Cheers from the UK !
Have used a lead replacement / octane boost for years now and seems to work ok. Valves etc checked approx 18 months ago and no noticable wear found. Got to be honest was paranoid for a while when leaded petrol fineshed. Big problem here in the UK with all the old Brit bikes on the road but general feeling was that we all worried for nothing. Having said that i'm sure modern petrol is crap compared to the old leaded. Try leaving some in a jar and when its evaporated look at the **** left behind. Most people i know drain tanks and carb if taken off the road for any length of time . A friends Triumph Trident gunged up after having stood for only 2 months.
Anyway - thanks all for taking time to reply !
Cheers from the UK !
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Cruiser
Joined: Oct 2007
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RE: 63 Pan wont start
I'd recommend a couple fo things. First, try starting with the a starter fluid squirted directly intot he carb mouth with choke off and throttle wide open. Kick it over a and listen for fire. Be aware that starter fluid evaporates quickly, so if the bike doesn't light up on the first or second kick, you'll eed to spray some more. Also be aware this stuff isn't good for the engine, as it might drip down past your rings and dilute the engine oil.
Another thing to check is the condition of your carb float. The new crap gas is messing them up. You might find it is stuck in the float bowl.
Good luck
Another thing to check is the condition of your carb float. The new crap gas is messing them up. You might find it is stuck in the float bowl.
Good luck