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Looking for some help with a troublesome 750 SR41a
Ok guys bottom line is, I recently bought this bike unseen (my mistake) the previous owner said it was a little hard to start and would wind over a bit but would start. He also said that he thought it probably needed a new fuel pump and the carbs cleaning.
When it does start I’d runs and rides fine. 
I should also mention it does sound a little rough on turn over but no clonking etc from the sprang clutch.

Anyway, 
Fitted so far, fuel pump repair kit. No difference to starting.
Carbs removed, stripped and cleaned in the ultrasonic bath.
Starter removed, stripped and tested as a precaution, all fine.
Battery looks recently new and tested ok.
New earth lead from battery to the engine cases, an additional earth lead mounted on to one of the bolts that holds the starter motor on.
New positive lead from battery to starter and also a new lead from positive to the solenoid.
The above didn’t help with the staring either.
It should be mentioned, spark at the plugs wouldn’t be anything to shout about.
Two new NGK Iridium spark plugs.
Coils tested and within range.
Stator removed and checked, on removal I noticed that the ignition part of the stator was a little discoloured, when I checked I found it to giving a very high Ohms reading way outside what is recommended. Stator was sent off to West Country Windings who confirmed that it was reading way above the recommendation. They rewound the pickup and sent it back to me all fully tested and functioning.
Tappets set to SR43 settings.
Decompressor lever set according to the book.
I haven’t done a compression test as some kind hearted chap borrowed my compression tester and forgot to return it, however the problem isn’t compression as she has plenty of it !

So there we have it gentlemen, I think that’s everything covered. I would love to hear from someone that has experience of these machines that could perhaps point me in the right direction.
I am slowly beginning to get a little annoyed to put it mildly.  

Just one last thing, I did mention that the sprag clutch isn’t making any terrible noises as mentioned in other threads however I was wondering could it be at fault ? 

Thanks in advance for any help or advice offered, cheers
(09-12-2020, 08:49 PM)Rwanda94 Wrote: [ -> ]Looking for some help with a troublesome 750 SR41a
Ok guys bottom line is, I recently bought this bike unseen (my mistake) the previous owner said it was a little hard to start and would wind over a bit but would start. He also said that he thought it probably needed a new fuel pump and the carbs cleaning.
When it does start I’d runs and rides fine. 
I should also mention it does sound a little rough on turn over but no clonking etc from the sprang clutch.

Anyway, 
Fitted so far, fuel pump repair kit. No difference to starting.
Carbs removed, stripped and cleaned in the ultrasonic bath.
Starter removed, stripped and tested as a precaution, all fine.
Battery looks recently new and tested ok.
New earth lead from battery to the engine cases, an additional earth lead mounted on to one of the bolts that holds the starter motor on.
New positive lead from battery to starter and also a new lead from positive to the solenoid.
The above didn’t help with the staring either.
It should be mentioned, spark at the plugs wouldn’t be anything to shout about.
Two new NGK Iridium spark plugs.
Coils tested and within range.
Stator removed and checked, on removal I noticed that the ignition part of the stator was a little discoloured, when I checked I found it to giving a very high Ohms reading way outside what is recommended. Stator was sent off to West Country Windings who confirmed that it was reading way above the recommendation. They rewound the pickup and sent it back to me all fully tested and functioning.
Tappets set to SR43 settings.
Decompressor lever set according to the book.
I haven’t done a compression test as some kind hearted chap borrowed my compression tester and forgot to return it, however the problem isn’t compression as she has plenty of it !

So there we have it gentlemen, I think that’s everything covered. I would love to hear from someone that has experience of these machines that could perhaps point me in the right direction.
I am slowly beginning to get a little annoyed to put it mildly.  

Just one last thing, I did mention that the sprag clutch isn’t making any terrible noises as mentioned in other threads however I was wondering could it be at fault ? 

Thanks in advance for any help or advice offered, cheers
Hard to start as in , Turns over slowly or turns and turns with no start ??
Turns over and over and does sound laboursome, occasionally it stops as if the battery is flat
(09-12-2020, 09:44 PM)Rwanda94 Wrote: [ -> ]Turns over and over and does sound laboursome, occasionally it stops as if the battery is flat
They need a good strong battery if it's turning sluggish it probably wont start , put a meter on the battery when your cranking it over and see what the voltage drops to , I haven't checked the valve clearances but why is it not set to the 750 spec ??
Battery has been tested and is good, even so I hooked up a jump pack and tried it along with the battery, no difference.
Originally when I checked the valve clearances they were all too tight. Whilst going through posts on this site I came across a post where it was mentioned that a lot of people preferred to set them to the sr43 setting which give more clearance.
(09-12-2020, 10:03 PM)Rwanda94 Wrote: [ -> ]Battery has been tested and is good, even so I hooked up a jump pack and tried it along with the battery, no difference.
Originally when I checked the valve clearances they were all too tight. Whilst going through posts on this site I came across a post where it was mentioned that a lot of people preferred to set them to the sr43 setting which give more clearance.
Where abouts are you it says N Ireland in your profile ?
(09-12-2020, 10:09 PM)spendango Wrote: [ -> ]
(09-12-2020, 10:03 PM)Rwanda94 Wrote: [ -> ]Battery has been tested and is good, even so I hooked up a jump pack and tried it along with the battery, no difference.
Originally when I checked the valve clearances they were all too tight. Whilst going through posts on this site I came across a post where it was mentioned that a lot of people preferred to set them to the sr43 setting which give more clearance.
Where abouts are you it says N Ireland in your profile ?
That’s correct, Clogher
(09-12-2020, 10:12 PM)Rwanda94 Wrote: [ -> ]
(09-12-2020, 10:09 PM)spendango Wrote: [ -> ]
(09-12-2020, 10:03 PM)Rwanda94 Wrote: [ -> ]Battery has been tested and is good, even so I hooked up a jump pack and tried it along with the battery, no difference.
Originally when I checked the valve clearances they were all too tight. Whilst going through posts on this site I came across a post where it was mentioned that a lot of people preferred to set them to the sr43 setting which give more clearance.
Where abouts are you it says N Ireland in your profile ?
That’s correct, Clogher
OK i'm up the road the other side of Belfast , Where did you get the bike ??

I have a good few spares if your stuck
About the only thing left to try is to fit another CDI unit.

Great diagnostic work so far.
(10-12-2020, 05:17 AM)ladder106 Wrote: [ -> ]About the only thing left to try is to fit another CDI unit.

Great diagnostic work so far.
He says it runs , just hard to start
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