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E-start setup

Simon

Simon

Joined Jun 2001
1K Posts | 3+
Berkshire, England
OK folks,

I have just installed an e-start system into a 2003 650 and low and behold it doesn't start on it - I'm not totally surprised, mind you.

Now the engine is set up impeccably - stator works fine and the readings off it are fine. Valves are adjusted to spec and the engine is mint. Dellorto carb is spot on too.

It takes a whisper to start the thing hot or cold on the kick start and even after being upside down.

Obviously I want to get it working on the button.

My first suspicion heads towards the autodecomp. mechanism....

Second, is the Dellorto so bad on e-start and therefore do I really need to fit an FCR to get this working?

What else might be worth me looking at?

Next question is: what should the rpm of the engine be when being spun over on the button?

Any other ideas?

Thanks,
Simon
 
Did you do the auto decomp device update on the cam shaft?

You might want to try that. Ady swears by it.

Otherwise, enjoy your E-REstart.
 
simon,
i believe that the wire that activates the starter soleniod must also go to the ignition box.
i bet without this, you may have troubles.
good luck.
if the decomp wasnt working the motor wouldnt spin.
tuts :devil:
 
I've got an 03 650 with Dellorto and it'll start no worries hot or cold on the button but I'm in OZ and it doesn't get as cold here as it does over there so you might have more trouble.
If it struggles to spin around TDC and/or only turns over a couple of times then check the auto decomp for lift and valve adjustment.
And yes I know it's only a re-start, sometimes I use my leg to stay in practice.

Coops
 
Thank you all for your replies.

I haven't updated the decomp.

The white to the ignition box is connected.

Glad to hear the Dellorto isn't such an issue.

It seems to have a little trouble turning the engine over - the starter really tells me it's working!

Cheers,
Simon
 
Simon said:
It seems to have a little trouble turning the engine over - the starter really tells me it's working!
Click to expand...

when the decomp lobe wears it has two problems; it does open enough and it opens too late.
from my own personal experience, its the opening too late which is the major problem.
you can grind the decomp 'arm' so that it activates earlier.
i have a like new 03 decomp i could send you, or some pics if that helps.

you maybe live near taffy....how close is the uk to england?

tuts :devil:
 
tuts said:
Simon said:
It seems to have a little trouble turning the engine over - the starter really tells me it's working!
Click to expand...

when the decomp lobe wears it has two problems; it does open enough and it opens too late.
from my own personal experience, its the opening too late which is the major problem.
you can grind the decomp 'arm' so that it activates earlier.
i have a like new 03 decomp i could send you, or some pics if that helps.

you maybe live near taffy....how close is the uk to england?

tuts :devil:
Click to expand...

tuts! did i ever tell you that you're beautiful!!!! :oops: :oops:

regards

Taffy
 
tuts said:
when the decomp lobe wears it has two problems; it does open enough and it opens too late.
from my own personal experience, its the opening too late which is the major problem.
you can grind the decomp 'arm' so that it activates earlier.
i have a like new 03 decomp i could send you, or some pics if that helps.

you maybe live near taffy....how close is the uk to england?

tuts :devil:
Click to expand...

tuts,

Thank you, that is a very kind and generous offer.

I've popped into my local dealer and got a new decomp to play around with. I've closed the valve lash and spun it over and it goes great, now I'm going to set the valve lash proper and hope the cranking speed is maintained!

Otherwise I'm going to start wondering whether my second hand starter motor might need new brushes or something......

In US terms taffy and I are practically neighbours :wink:

Be well,
Simon
 
Not sure how you do your valves but use the turn method - forget the gauges.

Coops
 
that's a bit cheekie coops!

given that only 24 hours ago i started a thread dismissing tappets by feeler gauge! something about a horse and a gate?

regards

Taffy
 
Hi Taff
Why's that cheeky?
Just makin sure our Husabrothers are doing these things right.
BTW I agreed with you in the other thread as well.

Coops
 
Coastie said:
Hi Taff
Why's that cheeky?
Just makin sure our Husabrothers are doing these things right.
BTW I agreed with you in the other thread as well.

Coops
Click to expand...

:puke:
 
hey tuts!

i got my own groupies now so you can take a hike! (LOL!!!!)

you can join my club at yesmen.cum

regards

Taffy
 
Coastie,

Thank you, I'm fairly up to speed on valve adjustments :)

Ady,

Thanks for those links which were very useful.

Now, I've got an interesting thing going on here.

Valves adjusted and everything and the engine turns over quite nicely on the e-start with own battery fully charged, but just not enough to fire the engine up.

Yes, there is a noticable speed difference in speed if I open the manual decomp. for example.

If I then connect a small 130amp starter/booster positive to battery positive, negative to earth at the same place as the starter motor earth, I get a slight rise in cranking speed which is enough to start the engine hot or cold.

Now, if I connect my car battery up to the starter directly, I get the same cranking speed as the YTZ7S and if I connect my car battery to the YTZ7S positive and then to earth, I also get the same cranking speed.

It is only battery plus the booster that manages to lift the cranking speed up to that good enough to start the engine.

I've opened up the starter motor to check the brushes and they are almost prestine.

I am wondering whether to suspect the starter motor (which is a second hand Mitsuba SM-13) which has a power rating of 700W compared to the 600W standard Husa starter.

I'd be grafeful for any input you might have.

In the meantime I'm going to double check the mechanical side of things (it does already have the latest decomp device in it).

Cheers,
Simon
 
there's only one man who can help at a moment like this!

it's, it's BUNDYBEAR!!!!!!!!

I'LL DROP HIM A pm. he's absolutely mustard on stuff like this!

regards

Taffy
 
Hi Simon

I don't wish to 'muddy the water' but is it possible you are fighting what someone here (I can't find the thread) discovered which had to do with taking the spring pressure off the autodecomp before setting the valves - the thread author suggested it cured his long time starting issues.

Just a thought...

Mark

Found the thread....

http://www.husaberg.org/index.php?name= ... holy+grail
 
mark

again, the manual decomp and the auto decomp are on two seperate parts of the engine mon ami.

regards

Taffy
 
Hi Taffy,

I just reread Sean's post in which he states "...manual decomp spring..." missed it the first and second time - sorry to waste your time Taffy

Cheers

Mark
 
chilledspode said:
Hi Taffy,

I just reread Sean's post in which he states "...manual decomp spring..." missed it the first and second time - sorry to waste your time Taffy

Cheers

Mark
Click to expand...

Thank you for trying to help though Mark, I appreciate it!

Simon
 

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