<br /><br />1) After sitting for over a year, the carbs were clogged up. I removed and cleaned them up and reinstalled them. Also installed new plugs and wires. Engine ran nice except for two things:<br /><br />a) After sitting overnight, it won't start without shooting a little quickstart into the intakes. The primer pump clicks when activated but does not seem to shoot gas into the carbs. It did before I took it the carbs off. All other starts for the rest of the running day are fine.<br /><br />b) The idle was a little too fast for the trolling I do so I attempted to slow it down a bit. I adjusted what I thought was the idle and it did slow down the motor however, I lost top end speed by what feels like 1000rpm and 10 knots per hour.<br /><br />2) The tach (Original OMC) did not work correctly (before and after my work on the carbs), it showed about 1000rpm at idle and dropped to zero on acceleration. Occasionally it would jump up to 3000 and then drop back down. I replaced the tach and the new one (OMC also) works better- seemingly correct until 2800 rpms and then it drops back off. <br /><br />a) Old tach and new tach were/are wired in the following way. Five wires come out of the loom.<br /><br />2 Purple wires- One to 12v ignition, one to the post marked 12v on the OMC tach.<br /><br />1 Gray wire- Goes to the post on the tach marked pul.<br /><br />2 Black wires 1 goes to the ground post on the tach the other is/was not connected to anything. Where does this one go? When I check it with my ohmmeter, it shows that it seems to go to ground.<br /><br />Earlier posts on this tach problem suggest I may have a bad regulator- however, I'm reluctant to replace the regulator without a good manual and until I determine whether that extra black wire is important.<br /><br />I do have a water pressure gauge but I have not yet installed it. Is there a port or outlet for the nipple on my engine or do I have to drill and tap?<br /><br />I know, it's a bunch of problems...<br /><br />Dave
