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Author Topic: Hot and Cold Exhaust  (Read 419 times)

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Offline makzy

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Re: Hot and Cold Exhaust
« Reply #4 on: June 21, 2020, 05:41:16 PM »
Yes it sounds as if it was something like Jonesey said, after 9 years not running all sorts of things can happen electronically, dry oxidised connections, it always pay to check and clean every connection on the bike before attempting a start, even the metal ends of the plug leads.
 But if it’s running ok now and you have 4 evenly hot header pipes you’ve done well. By the way, looks good too.👌
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MAX
 79 XS1100 STD (hack)
 80 xs1100 STD
( yet to be played with )
   ( ride the way you want to)

Offline Jonesy :-)

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Re: Hot and Cold Exhaust
« Reply #3 on: June 21, 2020, 08:02:12 AM »
Sounds like coil prob to me. When you did the plug swap you could have disturbed a loose connsection or fatigued intermittent brake in a wire to the 2- 3 coil to make it start working again.?
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78 E Stock
78 E Stockish with spoked wheels
80 G spoked wheels and other subtle mods
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Offline Ardvark

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Re: Hot and Cold Exhaust
« Reply #2 on: June 21, 2020, 01:54:38 AM »
I've been messing and swapped the plugs around.
The two inside plugs with the two outside plugs.
Started no problem but now all four pipes are getting hot.
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Offline Ardvark

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Hot and Cold Exhaust
« Reply #1 on: June 21, 2020, 01:01:11 AM »
Fired up me bike after 9 years last week-end.
Started straight away this afternoon but.
The middle two exhaust pipes are boiling hot but the outside two exhaust pipes were cold to the touch when the engine started and by the time the engine was taken off the choke there was a hint of warmth. Could have been from the heat of the middle two.
What do you think?
Coils or carbs?

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