xs650 again black box says “Martek”? for eletrical ignition?
March 3rd, 2010 | Articles | 2 Comments »
adam_andrella asked:
hey the black box under my seat says “MARTEK” if that helps you out. and it had the two stock coils to it. one was bad so i changed coils to the high output replacement coil “part # 17- 6803″. i’m wonderin if i went wrong should i have bought the stock coil part number part # 17- 6805 on this website.. (http://www.mikesxs.net/products-27.html#products) no points. it has advance mechanism
with the stock coils it didnt fire on the left side. and the exhaust pipe was cold(left)while the right one was hot as hell and firing. but with the new coil i put on you cant check spark cause it’ll fry it
go read mikesxs thisWARNING!!! Do not operate or apply power to the ignition system with one
or both spark plugs disconnected. Operating or applying power to the coil or
ignition system with one or both spark plugs disconnected will cause IMMEDIATE
FAILURE to the coil. Ignition coils are NOT WARRANTIED for this reason. is what it says…..
Create a video blog…instantly.
hey the black box under my seat says “MARTEK” if that helps you out. and it had the two stock coils to it. one was bad so i changed coils to the high output replacement coil “part # 17- 6803″. i’m wonderin if i went wrong should i have bought the stock coil part number part # 17- 6805 on this website.. (http://www.mikesxs.net/products-27.html#products) no points. it has advance mechanism
with the stock coils it didnt fire on the left side. and the exhaust pipe was cold(left)while the right one was hot as hell and firing. but with the new coil i put on you cant check spark cause it’ll fry it
go read mikesxs thisWARNING!!! Do not operate or apply power to the ignition system with one
or both spark plugs disconnected. Operating or applying power to the coil or
ignition system with one or both spark plugs disconnected will cause IMMEDIATE
FAILURE to the coil. Ignition coils are NOT WARRANTIED for this reason. is what it says…..
Create a video blog…instantly.
No, the coils you purchased should work fine. If you replaced the coils for a no start issue, and it still won’t start after replacement, then they weren’t the cause of the problem to begin with. Why do you think the original coils were bad? Could be the ignition module or faulty ground if you’re not getting spark at the plugs.
Checking spark won’t hurt anything. Pull the plugs, connect the wires, ground the plugs to engine ground, crank and watch the plugs for fire. The coil can’t tell the difference between a plug installed in the cylinder with a plug externally grounded. Won’t hurt anything.
First off, get out the multi meter and check the primary resistance on the stock coil and the new one. Most points system coils run at 4-5 ohms while older electronic ignitions run at anywhere from 2.5-3 ohms. Many new systems run at less than 1 ohm. With a low resistance coil, you’ll be putting more current through the box, increasing the likelihood of causing it to overheat or frying the transistors.
Contrary to what mikexs says, you can remove the plug and with the metal portion of the plug laying solidly on any metal part of the engine, crank if over to see if it sparks. Take my word for it, I know a heck of a lot more about electronics than most mechanics here do.
If you aren’t getting spark, then check the magnetic pickup that replaced the points for that coil. The true name being a Hall Effect Sensor, most are cylindrical or rectangular in shape with a small metal protrusion on the inside facing the crankshaft. With the ignition turned on and the spark plug laying on the engine block, take something like a flat screwdriver and momentarily tap the protrusion (it’ll be magnetized) and the plug should spark. If it doesn’t then try the other pickup to make sure you’re tapping the correct one. If it still doesn’t, then the pickup is shot. It’s not uncommon for the insulation on the winding to break down, causing them to short out.