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1982 XLH starting issues

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Old Apr 5, 2026 | 12:01 PM
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Default 1982 XLH starting issues

Just been given an 1982 model but have been unable to start.
Changed battery spark plugs

and have charge and spark out nothing checked all relays and fuses an there fine carb is receiving fuel.

check compression on cylinders

front is 125psi
rear is 70psi

what would that mean would that effect the starting
 
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Old Apr 5, 2026 | 12:22 PM
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Sorry also worth stating it has been sat in a shed for 24 years un started
 
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Old Apr 5, 2026 | 12:52 PM
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well if it were me i would do the top
 
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Old Apr 5, 2026 | 01:07 PM
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You have spark and fair compression, how about fuel? Clogged pilot jet or passages after 24 years? Have you refreshed any manifold seals?

John
 
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Old Apr 5, 2026 | 02:06 PM
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My next step was to strip and clean carb although I did squirt easy start through carb but still nothing.

if I have to do top end is it worth doing any mods for performance
 
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Old Apr 5, 2026 | 02:20 PM
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Originally Posted by Showtime247
Just been given an 1982 model but have been unable to start.
Changed battery spark plugs

and have charge and spark out nothing checked all relays and fuses an there fine carb is receiving fuel.

check compression on cylinders

front is 125psi
rear is 70psi

what would that mean would that effect the starting
Probably not. It should at least try to start/run poorly. The rear cylinder @70 psi is an issue. Possibly some rust in there. After 24 years it would be wise to go through the top end and see what it looks like. Have the heads rebuilt, cylinders honed, new rings, new lifters. That wouldn't be too expensive.
 
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Old Apr 5, 2026 | 06:08 PM
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Originally Posted by OCSpringer
Probably not. It should at least try to start/run poorly. The rear cylinder @70 psi is an issue. Possibly some rust in there. After 24 years it would be wise to go through the top end and see what it looks like. Have the heads rebuilt, cylinders honed, new rings, new lifters. That wouldn't be too expensive.
would checking the points and pushrods have any bearing on wether it would start or are they just a fine tuning thing when the bike is running
 
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Old Apr 6, 2026 | 06:53 AM
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Originally Posted by Showtime247
My next step was to strip and clean carb although I did squirt easy start through carb but still nothing.

if I have to do top end is it worth doing any mods for performance
After sitting that long and considering the low compression on the rear cylinder, you should rebuild the top end. And if you're planning to do any mods, now would be a good time to start since you'll have the top end apart anyway.
 
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Old Apr 6, 2026 | 08:35 AM
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What mods are common for performance and reliability
 
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Old Apr 6, 2026 | 11:09 AM
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Originally Posted by Showtime247
would checking the points and pushrods have any bearing on wether it would start or are they just a fine tuning thing when the bike is running

Stock it had E ignition not points
Yes, check valve lash, possible but not likely causing your low compression issue
 
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