Reply
 
Thread Tools Search this Thread
 
Old 31 July 2014, 06:40   #11
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
Have a read of this listing could be a source for spares?

Breaking Yamaha/mariner outboard 20-30-40hp, flywheel. | eBay

__________________

__________________
bartiny is offline   Reply With Quote
Old 31 July 2014, 10:17   #12
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
Last message for a while dont want you thinking I am a stalker!!

Photos below showing what I did with the dial gauge.

Click image for larger version

Name:	dial gauge 001.jpg
Views:	113
Size:	107.9 KB
ID:	97416

Click image for larger version

Name:	dial gauge 002.jpg
Views:	87
Size:	49.8 KB
ID:	97417

Basically what you are trying to achieve is for the points to just break contact when the piston is 3.35mm or 0.132in before TDC for each cylinder.

Sounds simple but takes abit of patience, the dial gauge does a complete 360deg. for each 1mm.

Hope all that makes sense

Good luck
__________________

__________________
bartiny is offline   Reply With Quote
Old 31 July 2014, 11:04   #13
Member
 
Country: UK - England
Town: south west
Length: under 3m
Join Date: Jun 2014
Posts: 85
i have just spoken to a few out board mechanics and they have said it probably is the pulsar coil braking down
but also wanted a min of 70 to diagnose
so looks lie i will be doing it all by myself ime going to whip of the coil tonight and see if i can test it and also swap the points over just incase i there is a duff one there other than that i will then know that everything else is working as it should then ile do the timing [when i can get my brain in to complicated gear ]
have you a price for your parts if i needed them ?
many thanks again [chris]
__________________
stigoftd is offline   Reply With Quote
Old 31 July 2014, 11:21   #14
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
As far as I know a pulsar coil is found on a CDI ignition system not points your coil is a shared primary then seperate secondary's.

What problems are you having ie; will it start, does it miss fire, will it not idle, you get the idea
__________________
bartiny is offline   Reply With Quote
Old 31 July 2014, 11:43   #15
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
To be honest at the end of the day you could easy spend 70.00 on bits you might not need, it could be money well spent having it diagnosed.

Anyway a couple more pics that might be usefull

Click image for larger version

Name:	dial gauge 005.jpg
Views:	96
Size:	97.1 KB
ID:	97419

Click image for larger version

Name:	dial gauge 006.jpg
Views:	93
Size:	97.2 KB
ID:	97420

Click image for larger version

Name:	dial gauge 007.jpg
Views:	97
Size:	79.1 KB
ID:	97421

Click image for larger version

Name:	dial gauge 008.jpg
Views:	95
Size:	87.0 KB
ID:	97422

Click image for larger version

Name:	dial gauge 009.jpg
Views:	93
Size:	102.2 KB
ID:	97423

HTH
__________________
bartiny is offline   Reply With Quote
Old 31 July 2014, 17:29   #16
Member
 
Country: UK - England
Town: south west
Length: under 3m
Join Date: Jun 2014
Posts: 85
it will start easily but only on one cylinder there is a good spark on one plug and a very weak spark on the other
this one has realy got me confused as everything seams to be set up right and clean
BUT tonight i may have found the problem
i removed both the ht coils to test found both ok then i noticed one was a cdi coil and one was not and the one with the cdi ime assuming is taking alot of the load out
so when i have been changing the input wires from one coil to the other the problem has still been there so i tried each seperatly so disconnected the cdi one and the other now has a perfect spark then connected the other input wire to the non cdi it has perfect spark then tried the same on the cdi one and very weak spark then tried both together one very weak and the other ok but not what it was
so i have one cm61-25 + correct coil sparking perfect
and 1 cm61-26 cdi coil verry weak and reducing the proper coil
so all i need now is another cm61-25 coil god help me find one
__________________
stigoftd is offline   Reply With Quote
Old 31 July 2014, 18:02   #17
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
Nice one now you know why I would not give you a price for what I had you would have been wasting your money.

Interesting about the coil I cant see why it has to be an exact match as long as the mounting holes are the same, same handed, and it is a points coil but someone will know for sure strange that nobody else has offered any advice yet, still time though.

Just looked at my coils and 1 is the same as yours but the other does not have any numbers or markings at all?

I posted a link earlier to a guy breaking a Yamaha Mariner (same engine) send him a message with what you want.

Lets hope that sorts that for you.

__________________
bartiny is offline   Reply With Quote
Old 31 July 2014, 18:25   #18
Member
 
Country: UK - England
Town: south west
Length: under 3m
Join Date: Jun 2014
Posts: 85
i just couldnt figure out why i was only getting one good spark no matter which way round they were wired untill i disconected the cdi one it was making my head hurt
i sent a message to that one on ebay asking about the ignition side of things but think it is a cdi one by the loks of the pic just awaiting the reply
i have found one in the us for 20 ish just awaiting reply on shipping
__________________
stigoftd is offline   Reply With Quote
Old 01 August 2014, 00:29   #19
Member
 
HughN's Avatar
 
Country: UK - England
Town: Littlehampton, W Sx
Length: no boat
MMSI: 235101591
Join Date: Jan 2012
Posts: 732
Quote:
Originally Posted by bartiny View Post
But you have to fix it securely in the bore somehow, what I did was to saw the thread bit off a spark plug wrapped a bit of tape round the end of the dial gauge screwed the threaded bit of spark plug into the spark plug hole and then pushed the dial gauge into it worked a treat but fiddley.
Other (low tech) options include:
Using a TDC-finder tool:
- move it away from TDC and make a mark on it and the flywheel
- move it past TDC until it is back to the mark, mark the flywheel
- TDC is halfway between the two marks on the flywheel
Making a manometer-style gauge (using a sawn-off spark plug or similar). The 'gearing' is the ratio between the cylinder bore and the i.d. of the tube used, so a 60 mm bore and 4 mm tube would give 15 mm change in column height for each 1 mm moved by the piston. Use two readings, as above
__________________
"Can ye model it? For if ye can, ye understand it, and if ye canna, ye dinna!" - Lord kelvin
HughN is offline   Reply With Quote
Old 01 August 2014, 01:53   #20
RIBnet supporter
 
bartiny's Avatar
 
Country: UK - England
Town: Accrington
Length: no boat
Join Date: Oct 2012
Posts: 451
Quote:
Originally Posted by HughN View Post
Other (low tech) options include:
Using a TDC-finder tool:
- move it away from TDC and make a mark on it and the flywheel
- move it past TDC until it is back to the mark, mark the flywheel
- TDC is halfway between the two marks on the flywheel
What do you mean one of these?

Click image for larger version

Name:	dial gauge 001.jpg
Views:	80
Size:	107.9 KB
ID:	97447
Making a manometer-style gauge (using a sawn-off spark plug or similar). The 'gearing' is the ratio between the cylinder bore and the i.d. of the tube used, so a 60 mm bore and 4 mm tube would give 15 mm change in column height for each 1 mm moved by the piston. Use two readings, as above
Not a clue what you have just said

Move the piston back 1mm and the dial gauge shows wait for it........1mm WOW.

__________________

__________________
bartiny is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 15:46.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.