JAN: have you used tha same head bolts? did you do tha 90* thing with 'em?.. if you don't use new bolts you might just torque ta 35 lbs and go with it...
it goes thru tha front side of tha can thru an exhaust tube thats suppose ta be sealed both top and bottom.. its completely separate from exhaust...
without it (like our hot rods) will sometimes completely destroy (melt) tha water pump....
tha tube also prevents tha discoloring of tha down...
if you cut and install yourself tha length will be estimate.. it needs about 1/4" gap at both ends when installed.... these don't need ta be exact measurements......
are you getting any type of overheat alarm??? if not, i wouldn't think twice about it....
those are usually called "diverters".. we would put 'em our hot rods years ago before merc ever thought 'bout 'em.. never seen 'em on any Parts charts except later model Hi Perf. 2 stroke stuff ie: 260, 280 etc... they should not be a problem.. earlier production mercs have ran for years without...
pump tha "bulb" when it starts ta act stupid.. if that works then its bad.. next push tha key "in" (activates tha enrichner circuit) and hold for a few seconds when it acts up.. if that makes tha motor come back ta life ya have a bad fuel pump
go here:
https://www.biggerhammer.net/mercury/
Timing a 2.5
Jay Smith gives the following instructions for setting proper timing on a 2.5
Jay makes a great dial indicator for performing this procedure - it is available at http://www.jaysmithracing.com
his is for a 2.5 motor but they...
don't know your "startin'" routine but most carb mercs have their own quirks on what it wants... trim motor all tha way down.. raise fast idle up justa tad.. hold key pushed and crank till snorts and/or try's ta start.. release key and trim motor up ta level.. raise fast idle up a tad again and...
think you might need ta find an OEM manual and go thru it.. yours has several answers for tha problems it has.. we can all guess but without actually being able ta "reach out and touch it" but with that many concerns it is all just that, guesses...
think this is tha manual ya need ta track...
motor mounted neutral safety switch hadn't come out yet.. was a few years later.. but there should be a neutral safety switch inside tha control box
gear case?.. unless its been changed which is a good possibility is has whats called a pre-load gear case.. its a weaker design than a later...
tha box he's referin' to is mounted on top of tha air box stuff. will have a red, white and black best i remember.. they terminate on a switch box.. its called an "idle stabilizer".. looks like it is there in one of your pics? it has a piece of tape on it aligned with your makeshift pointer...
