Starter motor noise on starting

The 1990's Japanese market GSX250SSN (GJ76A) and GSX400SSN (GK77A)
User avatar
Kryten
Club Member
Posts: 1795
Joined: Sun Dec 26, 2010 11:13 pm
Location: North Norfolk
Has thanked: 120 times
Been thanked: 257 times

Re: Starter motor noise on starting

Post by Kryten » Sat May 20, 2023 9:51 pm

Hi Bob

Have you had the starter motor out?

It could be the bearings in the motor
Jim

750 SZ (Not So) Skruffy Kat
1000 SZ in bits
7/11 SZ Long term
T509 Back on the road!

It was a New Day yesterday but, by God, it's an Old Day now!

Smallkat
Club Member
Posts: 957
Joined: Mon Nov 16, 2020 10:40 pm
Has thanked: 29 times
Been thanked: 108 times

Re: Starter motor noise on starting

Post by Smallkat » Sun May 21, 2023 4:51 pm

Hmm... that's an odd one then.

As you say, keep going until it doesn't. At least it's easy to bump-start.
GSX250SS Tinykat (gone, but the hole in my wallet not forgotten)
GSX400SS Smallkat
GT250 X7
GT200 X5
BMW R1250R
VFR750FT

User avatar
Uncle Bob
Site Admin
Posts: 1818
Joined: Mon Nov 26, 2012 12:05 pm
Location: Norwich, Norfolk
Has thanked: 638 times
Been thanked: 243 times
Contact:

Re: Starter motor noise on starting

Post by Uncle Bob » Sun May 21, 2023 8:59 pm

Kryten wrote:
Sat May 20, 2023 9:51 pm
Have you had the starter motor out?
It could be the bearings in the motor
Not yet, I think I'll give that a try. A customer of mine runs MotoElectrical and they have the starter motor as same as GSF400 Bandit (Denso) so I should get some discount and they are only near Attleborough so I can go and pick it up. :D
The starter motor did have a harder time last year until I realised it was the Ignitor playing up and got the new Chinese one.

Cheers

Smallkat
Club Member
Posts: 957
Joined: Mon Nov 16, 2020 10:40 pm
Has thanked: 29 times
Been thanked: 108 times

Re: Starter motor noise on starting

Post by Smallkat » Mon May 22, 2023 10:29 am

JohnD says starter motors readily available!
GSX250SS Tinykat (gone, but the hole in my wallet not forgotten)
GSX400SS Smallkat
GT250 X7
GT200 X5
BMW R1250R
VFR750FT

User avatar
fossie
Club Member
Posts: 5186
Joined: Sat Oct 23, 2010 9:16 pm
Has thanked: 179 times
Been thanked: 716 times

Re: Starter motor noise on starting

Post by fossie » Mon May 22, 2023 7:51 pm

As I posted elsewhere I believe ...my 650 does this every now and then ....like to day . ;)
It's the sprang clutch releasing slower than usual ...its been like that since I've owned it ....its no got worse ....r better :lol:
CLUB Chairman


My Gallery

User avatar
Uncle Bob
Site Admin
Posts: 1818
Joined: Mon Nov 26, 2012 12:05 pm
Location: Norwich, Norfolk
Has thanked: 638 times
Been thanked: 243 times
Contact:

Re: Starter motor noise on starting

Post by Uncle Bob » Mon May 22, 2023 9:22 pm

Smallkat wrote:
Sun May 21, 2023 4:51 pm
Hmm... that's an odd one then.

As you say, keep going until it doesn't. At least it's easy to bump-start.
I haven't tried bump starting it (so far not needed to) :shock: - I take it you have had some practice...!

Smallkat
Club Member
Posts: 957
Joined: Mon Nov 16, 2020 10:40 pm
Has thanked: 29 times
Been thanked: 108 times

Re: Starter motor noise on starting

Post by Smallkat » Thu May 25, 2023 10:49 am

Many years ago, I had a Bandit 1200 that had a dicky battery, had to bump start for a few days whilst waiting for a new one.

If a little 'un like me can bump a 1200, the 400 should be no problem.
GSX250SS Tinykat (gone, but the hole in my wallet not forgotten)
GSX400SS Smallkat
GT250 X7
GT200 X5
BMW R1250R
VFR750FT

pookie
Posts: 505
Joined: Tue May 20, 2014 5:47 pm
Been thanked: 124 times

Re: Starter motor noise on starting

Post by pookie » Thu May 25, 2023 6:55 pm

Helps if you live at the top of a hill :)

User avatar
Uncle Bob
Site Admin
Posts: 1818
Joined: Mon Nov 26, 2012 12:05 pm
Location: Norwich, Norfolk
Has thanked: 638 times
Been thanked: 243 times
Contact:

Re: Starter motor noise on starting

Post by Uncle Bob » Wed Jul 12, 2023 9:37 am

So after swapping the sprag clutch rollers etc and that not fixing the strange noise issue, I then decided to replace the 1 year old MotoBatt battery for a Exide Li-ion one from Tayna (heck that is light!) as the MotoBatt didn't sound like it was turning the engine over that fast and also every now and then it would stutter to turn. I also decided to swap the starter motor (which I got from a customer of mine who has an ATV parts business with a side shop called MotoElectrical (starter motor is the same as listed for the GSF600 Bandit). That seems to have fixed it and also the 400 starts bloody quickly now (and we know 400's like to have the odd starting issue)!

Below is a startup from cold after left standing 2 weeks. I did put the fuel tap on Prime for a few minutes prior to starting.

https://www.youtube.com/watch?v=05uDekJgWXY

Next time I'll test without priming the carbs and also we'll see how it goes once the weather starts to get colder. So if you are having starting issues (surely not!) then I can recommend a new starter and the Exide Li-ion battery :-)

UB

Smallkat
Club Member
Posts: 957
Joined: Mon Nov 16, 2020 10:40 pm
Has thanked: 29 times
Been thanked: 108 times

Re: Starter motor noise on starting

Post by Smallkat » Wed Jul 12, 2023 11:42 am

Ooh, that did start right up!

Does that Li-ion battery come in the same size case?
What's the cost?
GSX250SS Tinykat (gone, but the hole in my wallet not forgotten)
GSX400SS Smallkat
GT250 X7
GT200 X5
BMW R1250R
VFR750FT

Post Reply