Cruisers Forum

Thread Tools Search this Thread Rate Thread Display Modes
Old 08-03-2016, 21:16   #1
Registered User
hapibeli's Avatar

Join Date: Oct 2014
Location: Galiano Island, British Columbia, Canada
Boat: 1974 North Sea Pocket Cruiser
Posts: 38
Yanmar YSM 12 starting issue

Our 1981 Yanmar YSM 12 was hauled out of the boat last June, gone through by our mechanic (50 years of experience), cleaned out with muratic acid as the head had never been off and the water jacket was loaded with salt residue. Everything checked out on the bench.
We got her back onboard, all hooked up, begin trying to get her started and after many attempts and searching for the issue, we finally added an electric fuel pump in line with the second filter, which then would go into the fuel lift pump. She started after 3 or 4 cranks, and ran like a dream. High fives as it were between mechanic and me.
Next day, I went to start her, and lots of motor turning over, but no catching. She tried a couple of times, but no go.
When the key is on, the pump pushes fuel through to the high pressure pump, but nothing.
Does anyone have any ideas? Batteries strong, alternator and starter work fine.
hapibeli is offline   Reply With Quote
Old 08-03-2016, 22:17   #2
Registered User

Join Date: Jan 2016
Posts: 429
Re: Yanmar YSM 12 starting issue

Not knowing what work your mechanic carried out makes it difficult to offer much advice except it's usually fuel - and if I were the mechanic I'd want the opportunity to fix a customer's problem with an engine I'd just rebuilt/reinstalled.
unclemack is offline   Reply With Quote


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Want To Buy: Yanmar YSM 8 parts Compass790 Classifieds Archive 3 22-11-2014 16:20
Yanmar YSM 8 Compass790 Engines and Propulsion Systems 0 31-10-2014 09:20
For Sale: Yanmar YSM 12R complete rumiko dan Classifieds Archive 0 07-04-2014 09:01
Winterizing Yanmar Model YSM Diesel GaryMayo Engines and Propulsion Systems 1 31-10-2012 19:53
For Sale: Yanmar YSM-8G, Rebuilt 2006 - $2,000 obo chrisarias Classifieds Archive 2 06-07-2012 17:31

Advertise Here

All times are GMT -7. The time now is 18:09.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.