hi guys
i own a 1984 700cc my cylinder 2 burns the sprak plug every 2 days what can i do? what do i check? is it my carb wrong? o the cylinder it self?
please help
My vote would be valve clearances that age too tight.
doscoras,
Welcome aboard. Like LateStart says it sounds like you may need a valve adjustment. Have your run a compression test on the engine to see if the number two cylinder has lower compression?
Or maybe your carb for the #2 cylinder is lean? Do you have any idea how your carbs are set up?
How many miles are on your bike?
thank you for the response. magnaman and latestart
well i have been keeping an eye over the bike, in case of leaks, weird noise etc.( by the way im triying to restore the bike). and i have notice from the left exhaust pipe when its idling and you pump up the gas, it looks like burned oil smoke coming out.
no OD working but the last measure says about 30,400 milles
no compression measured yet
and it suppose the last owner sent the bike for carb service. so im not fully aware about that
how do i adjust the valves?. i know about cars but bikes are really diferent do you have any idea where to check the marks in the fly wheel.
Send a private message to Latestart. He can probably help you with the shop manual for your generation of Magna. The manual should have the valve inspection and adjustment procedure in it and cover all you need to know.
If you're restoring it and you have time. It may not be a bad idea to pull the carbs off and clean them then bench sync them so you know what you've got. But that's me. I just want to eliminate the "unknowns".
Then I would check the valves to make sure they are all within spec. If they are in spec and your carbs clean and adjusted well, and you still have the oil smoke then... I'm not sure but I would suspect you have bad rings or something and you're burning oil. Latestart can probably provide some guidance there.