5th September 2013 at 8:09 pm #5393
Hi guys, the starter motor on my B is verty slow and never starts the engine. I have yet to develop a starter technique and have an old knee injury that stops me kicking for hours. Any tips for the motor and tips for a first/second kick starter would be appreciated .5th September 2013 at 10:02 pm #9688
Theses starters do tend to be sluggish. I would suggest you check all electrical connections are clean and making good contact. I would also suggest to refurb your starter motor. I also strongly recommend going for a different battery such as the mottbat one. There are plenty on ebay. They cost double or so the price of a lead acid type but physically are the same size and DO give out much stronger power when starting and also seem to hold their charge better. Ive left mine over 7 months and it has still started on the button
KK6th September 2013 at 10:24 pm #9694
yes, check technical condition / electrical connections.
Pay a lot of attention!
0.) Disconnect the battery !!!
1.) If you remove the PLUS cable from the starter, ensure that the bolt below doesn’t turn while you open the fastening nut. Turning the bolt will cut off the internal cables within the starter motor!
2.) If you remove the electrical starter motor from the engine case, you will have to open the alternator cover to fit it again.
For that you will need a new alternator cover gasket. Get one before doing the job!
You may have to clean the “gaps” within the starter rotor from dust and “coal”-particles.
Maybe new “coals” and springs will do the job.
Cheers, Michael7th September 2013 at 4:08 pm #9698
Thanks for the info guys.
KK, good to meet you last night, small world indeed!
I’ll come to you first next time I need anything.
Speaking of which I do need quite a few things;
Ltd fork legs inc top plugs
The little O rings for the air thing that links the forks
A good starter motor
The little starter cog (for my “bench test” engine for my chopper)
A cheap supplier of gaskets
I’d like a round front brake master cylinder suitable for twin discs too
That should keep me busy for a while7th September 2013 at 5:08 pm #9689
I don’t know what your forks are off but they are not from a 750 twin. The twins didn’t have any air balancing pipes. I would guess maybe a 4 cylinder LTD.
If you don’t want to refurb your starter motor there is a company advertising refurbed starters on ebay.
Also I am not sure if you can get a round master cylinder for twin disc.
We have various gaskets but I doubt full sets. Will see what I can get together there.
Cheers for now
KK7th September 2013 at 6:47 pm #9693dougytParticipant
Just adding in that a poorly solenoid can also cause the starter to be sluggish. If the contact tips inside are burnt they will induce a high resistance and lower the voltage to the starter.7th September 2013 at 8:35 pm #9699
kk think your right about forks, d and k doin vesrah gasket sets complete for 25 notes so will buy a couple of those. Who does the starters on ebay? be interested in price7th September 2013 at 8:42 pm #9700
hey dougy, I’ve had a car battery direct to the starter and its still slow. I’ll strip it out and have a look when time permits. It’s on my list. Luckily I have other bikes to use while im sorting it7th September 2013 at 8:51 pm #9695
I have a customized Z750B with the front fork of a Z750GP/Z750E, four cylinders, 1982.
There is a special kind of “balancer” used regarding the air pressurising system.
Upper legs of the front fork have holes (right above lower stem), tube connected “cover rings” with inner 36mm diameter O-rings and a single air inlet valve is used at right fork leg.
Please post some pictures of your bike / front fork here to give best advice.
Cheers, Michael7th September 2013 at 9:18 pm #9701
Hi Michael, if you look in “introductions” and “new from solihull” you will see my bike with good pics of the forks. I think they are LTD forks off a 4 cylinder bike8th September 2013 at 8:45 am #9696
thanX for the hint 😉
OK, that front fork is different to the road versions used in Z750, 4-cyl.
Very interesting is the front wheel with 5 spokes. Usually at the beginning of the 80’s the wheels had 7 spokes!
Front brake seems to be similar to the ones used in LTD Beltdrive models (and other Kawasakis of course) from 1983 on.
What tire size do you have in the rear? It appears to be a 16″ as used in the chopper version or is it 18″ as used on the road versions?
Cheers, Michael8th September 2013 at 10:44 am #9702
I hadn’t noticed the front wheel was different!Perhaps an early GPZ wheel?
The rear is a 16inch but has 7 spokes.
I think my front end is made up of several different bikes!
It all fits together nicely, just leaks oil and air.
The description of your gpz air valve set up sounds just like mine so I will look for those parts to fix my bike8th September 2013 at 11:40 am #9697
my front fork is from a Z750GP, this nomenclature was only used in 1982. On the side covers there is already a GPz750 logo on it.
It should be the same front fork as used in the Z750E, made a lot of times in the early 1980’s.
They all have 7 spoke wheels.
5 spoke wheels came later.
Cheers, Michael8th September 2013 at 8:52 pm #9703
Update on the slow starter, found an hour today to swap starters, Bike now starts off the button! well pleased! need some good gaskets now tho!
Will look into single carb as soon as I have forks sorted now8th September 2013 at 9:11 pm #9690
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