470/170 mercurise 2bbl carburetor<br />boat bogging down at 32000 rpm<br /><br />i look down the carb at 3200 rpm i see gas from both side dripping<br /><br />should it be spraying gas<br /><br />and if so that would be the accelator pump bad
i think it is a mercarb 2bbl carburetor<br />came with this 470/motor .<br />i was told if you look down carb at full wot <br />you could tell if the accelerator pump is working or not. mine has like dripping i think it should be spraying not for sure. i hope some one that work on carb , could tell me
so why do i see gas dripping from both sides at a constant speed<br /><br />low rpms i dont see gas<br /><br />higher rpms i dont see gas<br /><br />only at mid range<br /><br />does carb need rebuilt
Westdevil,<br /><br />You seem to be running 2 threads on the same subject. This is confusing to people trying to help. I answered the other thread and didn't have the information you have posted here. That will have given me a very different perspective and you would have gotten a different answer.<br /><br />Chris.........
sounds like you need a carb rebuild. definitely check the float level. i have the 2bbl rochester on my boat. it is not that hard to rework. according to my info, the mercarb has 1 idle adjustment screw and the rochester has two, otherwise they are identical.
ok achris60<br />i thought i need to change the title to get some one to answer me.<br /> so do you think that it is the carb. i thought it was the points again, but now it looks like it might be the carb, what do you think. and how much is a kit for it. i have rebuilt carb on cars before, is it about the same.and what should i be looking for after i get it done, far as looking in to the carb <br /><br />thanks
Westdevil,<br /><br />If you've done car carbs you're ok to do this one. No difference. <br /><br />I will assume that the carb is a 2bbl Mercarb (easy to identify, has only one idle mixture screw). If it is then the kit number is :<br /><br />Overhaul kit : 1397-6367<br /><br />And will cost you $45.91 from Mercruiserparts.com<br /><br />Chris.............
yes it is a mercarb it has only one idele screw.<br />im going to get the kit. thanks for the part number. does it sound like the carb achirs60.<br />i have replace points condensor again,same thing happens.when run at 3200 rpm for a few minutes it start to boging down.but if you go to neutral, and then go back up two speed it will run for a minutie or two then boggs down. i have new gas pump on it and filters.so the only thing that i no to do is to put a kit in the carb. what about when i look down the carb and see gas drippng on both side. when this bogging down is happen. should this be happen.<br /><br />thanks
Westdevil,<br /><br />Definitely worth a carb rebuild. But also check that the ignition timing is advancing correctly. If you need a timing chart I can e-mail one to you.<br /><br />Chris.........
