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Long overdue update. Finally had the work done on the bike! Yesterday they changed spark plug caps, did the valve timing, new air filters, new head gasket, lubed and cleaned too many things to list... No more shocks, but problem is still there. I pull the cap off of the left spark plug and the...

We are still waiting on the parts... COVID seems to be slowing down the shipping to canada, I will keep you posted though!

Ordered the non resistor caps, thanks!

Re-gaped to .6mm, same problem. Drove to the mechanic and as he was checking, he got a shock off the left side. Suggested we start by changing the spark plug caps and then work from there... we have ordered them and should know if it helps next week.

Going to try that hopefully tomorrow and keep you posted, again thanks for the help!

Measured the gap at 0.8mm

Right side

Thanks for helping with this! Pulled the plugs, here is the left side.

Dang, any suggestions on what I should do? Plugs are new from beginning of the season...

Ok guys, while bike was idling, I pulled the left spark plug cap off. Bikes rpm went down a little bit... put it back on, back to normal. Then I pulled the right spark plug cap off, bike died... Does this mean I’m running mainly on one spark plug?

Out For a Ride Yesterday

Great info, very appreciated!

Thanks for the explanation, the silver pods do smell like gas. I will try and find some uni filters for my seca... Will it be a straight swap or will I have to readjust anything on the carbs? Sorry for the questions, It’s my first bike and I’m learning how to wrench slowly but surely.

Looks like this

Hey guys, just wondering how often you guys clean your pod filters?

Did you end up trying this method? Does this work? I have a speedo making whining sounds...

Thanks for the eBay link, I might try fixing my speedo, I was thinking maybe buying a digital speedo but not sure about that move. My bike is stored for winter now but looking forward to spring and riding. Your going to love the seca!!! If I get a lead on a gas tank, I will definitely let you...

Chain and sprockets were given to me from the previous owner, he never got around to installing them. I bought the led lightbulbs on Amazon but chose to buy good ones as I have heard a lot of horror stories about cheap ones, I figure I saved about 5 amps give or take. The valves on my bike...

changing out the lights on my dashboard for LED. Does anyone know what the red light to the left of neutral is for (see attached pic)? In the back, the wires go to no where... 1983 xs400 seca

Hi guys, I’m a new rider and have recently purchased an 83 seca. Things that have been done to it since purchase: Brake fluid changed and bled Clutch adjusted New chain and front and rear sprockets New spark plugs Oil change Carbs cleaned Added SAE cable to charge a device and for battery...