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Discussion Starter · #1 ·
My starter solenoid failed on me. It was a pattern one, I wished it lasted longer than a year or two. I have a genuine one on order. It is for the later z750 twin, but that only a matter of changing the connectors, which is nothing. I know this is a dumb question, but what sort of things strain the starter solenoid, and cause to fail before time?
 

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GHOSTRIDER
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My starter solenoid failed on me. It was a pattern one, I wished it lasted longer than a year or two. I have a genuine one on order. It is for the later z750 twin, but that only a matter of changing the connectors, which is nothing. I know this is a dumb question, but what sort of things strain the starter solenoid, and cause to fail before time?
A dragging starter and/or poor wire connections. :wink:
 

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Discussion Starter · #3 ·
Ya, thanks, looking. A starter solenoid should last longer. It should be an easy fix. Now hopefully Royal Mail don't go on strike again after that generous settlement with their workers. And I'm happy that the valve stem seals can be done for cheaper than I thought - that's something I'm leaving to a mechanic as I might be able to do it in theory, I can't be sure I'll do it right. Also crouching and bend is harder for me since my accident.
 

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Starter Solenoid Checkout

Some simple steps to determine what is working and what's not:

1.Fully charge and test the battery(most bike shops can load test the battery, and then use a floating ball hydrometer to check specific gravity in the charged cells).

2.Clean all battery terminals of corrosion.

3.Tighten all starting related connections(Positive RED(+) battery terminal, Negative BLACK(-)terminal) and from the terminal to the engine case. All connections must be clean and tight.

4.Clean the cable from the starter solenoid to the starter motor.

5.Clean and check the "bullet connectors" going to the coil side of the starter solenoid.

6.Try again to start the bike.

7.If no luck, go to step #8

8.Wearing eye protection, bridge with pliers or a screwdriver the two heavy duty(large)terminals on the solenoid. If the bike cranks, your solenoid may be bad.

9. If the starter won’t turn over, one of several things has happened; The starter motor has seized due to brushes binding up, lack of lubrication in the bushings of the motor, the battery is weak , the engine has seized or it could be a combination of any of the above. Some websites for starter motor rebuild kits are:

A. RICK'S MOTORSPORT ELECTRIC STARTER BRUSHES
B.starter motor repair kits

10.The dealer may want $$$ for a new solenoid, but take your old one along and visit the nearest riding lawn mower shop. They have solenoids for about $15 that with a little work will fit. Be aware that the new solenoid from the lawn mower shop may require a ground wire for it to work.

11. I’d recommend upgrading from the existing battery cables to at least 6 gauge welding cables.
They are available in two colors(RED and BLACK) have more flexibility due to being constructed with finer conductors, and will fit in tighter areas.

12. The welding cable is sold by the foot, so take careful measurements or bring your old cables along. Most battery shops might be able to supply the cable too, so call to find out. The battery shop should be able to crimp/swage on the end of the welding cable the terminal ends or lugs using either a dedicated crimping machine or a tool that looks like a bolt cutter that has special dies to terminate the cable.
 

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Discussion Starter · #5 ·
Thanks for the tips, Mfolks.

Having had the starter clutch replaced, I haven't heard anything funny from the starting process, until I heard nothing, or rather just a click.

I've done 8 without any eye protection, perhaps no problem if it's done decisively, which means no sparks (but I should use the goggles I bought) when it failed before. I'll have time to try that basic thing tomorrow, once the battery is charged.

I ordered a genuine one for 34 Euro, it's for a later z twin, but only the connectors need changing.

I should master the knack of kickstarting, I think.
 
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