kz750 ltd h2 1981 engine wont crank problem

hi patton

thank you again for your reply

yes the bike is easy to put on the centre stand, there is a knack to doing it! first bike lesson!..

do i've to grip the spark plug cap with a pair of insultated pliers please? or zap,aaaaaaah!

many thanks

angel

angel_uk wrote:

...do i've to grip the spark plug cap with a pair of insultated pliers please?....

That's the "safest" way, but takes all the fun out of it. :laugh: :laugh:

Good Fortune!

hi patton

thanks for your smiling! a smile a day, makes you happy!

so going back to the 'actual sparks' they're there, but are thin orange, and definatly now fat blue. would you change the coils now then?

what is recommended, pattern or new gizmos? zpower in the uk www.zpower.com do a new ignition kit for better ignition and spark power, less current. is this the best way or just change the coils? i don't know anything about the kz750 ltd h2 1981 oem electronic ignition.

q) are they reliable, or change to modern type?

many thanks patton, we're getting to dinosaur roar slowly but carefully!

many thanks

angel



many thanks

angel

Angie:I"m using Accel coils #140403 on my '80 750H LTD bike.They bolt right up to the stock "A" coil brackets.All I had to do was make a set of "Pig tails" going from the harness to the coils.And the yellow Accel wires look cool too.The tank fits snug but cleanly.These coils give a good fat spark and work well with the stock system.I got mine on E-bay for $50.

hi rider

many thanks for your message. i've never heard of these coils. i will try and find some on Ebay or the Web!


thanks again

angel

hi hav

thank you for your message, good of you!

my bike doesn't have points. are these coils recommended for the electronic ignition type engines please.

has anyone else got these coils fitted to their bikes please?

what i'm worried about is, frying my harness if they're not recommended by the kzr's or the ohms are too high.
the coil manufacturers advise 3-4 ohms, is this not too high?

all this restoration work for a fry up?

any advice greatly appreciated gang!

regards

angel

According to Z1E, the factory ignition coils are each 2.2 ohm resistance.

www.z1enterprises.com/detail.aspx?ID=1306

The wiring diagram does not show a resistor used in the switched voltage line to the coils.

It's usually okay to use a higher resistance coil (higher ohms) in lieu of the stock coil, but it reduces intensity of the spark (so I understand).

Would measure the resistance of each existing ignition coil's primary winding by measuring ohms between the coil's two primary winding terminals (where the small wires attach).
If the small wires are permanently attached at the coil (without screw-on lugs), measure at the bullet disconnects.

Perhaps the existing coils are higher resistance than 2.2 ohms, which might explain the weak spark.

If the existing coils each measure about 2.2 ohms, they may be okay and remain serviceable.

There are several other reasons for weak spark besides bad coils.

Good Fortune!

hi patton

thanks for your message!

where did you obtain the 2.2ohm resistance from please?
we've looked in all the manuals and can't find out anything about the coils etc.

many thanks

angel

angel_uk wrote:

hi patton

thanks for your message!

where did you obtain the 2.2ohm resistance from please?
we've looked in all the manuals and can't find out anything about the coils etc.

many thanks

angel

Checking at Z1 Enterprises on coils for the bike at hand includes the info shown in this link:

www.z1enterprises.com/detail.aspx?ID=1306

Good Fortune!

hi patton

we did read this on z1, thank you!

my dad was talking about changing the whole ignition system to either a dyna or boyer brandson electronic ignition and related coils. please read the attached *.pdf.

q) would the bike's starting/running etc be better with the latest technology on it do you think?

q2) we have also see the allco yellow coils for sale on ebay, are these recommended patton please?

many thanks

angel

hi patton

the forum wouldn't accept *.pdf files.
please download this:-

www.boyerbransden.com/pdf/KIT00101__BOX00033_.pdf


this is what www.zpower.co.uk are currently selling as well as the dyna systems.

q) what is highly recommended for the old dinosaurs electronic ignition please?

many thanks

angel

hi patton

i've seen these coils on ebay com.

cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll...&_trksid=p2759.l1259

are these recommended please.(yellow?)


many thanks

angel