1980 cm400T is running rough. - Motorcycle Forum
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post #1 of 3 (permalink) Old 04-22-2012, 03:37 PM Thread Starter
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1980 cm400T is running rough.

hey guys, having some issues on my CM400T, lately it seems that the left cylinder is running rough, misses and I'm hearing this strange popping sort of sound when i slow down, again just from the left side. any ideas as to what could be wrong?
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post #2 of 3 (permalink) Old 04-23-2012, 12:46 PM Thread Starter
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also one other question: the bulb int he taillight is fairly dim and I'd like a brighter bulb, I've seen multiple LED bulbs advertised a replacements for the dual filament bulbs, would they function the same way?
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post #3 of 3 (permalink) Old 04-23-2012, 03:44 PM
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Quote:
Originally Posted by frozenhawaiian View Post
hey guys, having some issues on my CM400T, lately it seems that the left cylinder is running rough, misses and I'm hearing this strange popping sort of sound when i slow down, again just from the left side. any ideas as to what could be wrong?
Hi, Check that the left hand inlet carb mounting rubber isnt cracked or perished.That could cause it to run lean and also account for the popping sound as it sucks in air.

As for the rear bulb, check the earth wire, leds ? Im not sure wether you have to fit a relay or not.
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