Originally Posted by davidpm
4695 M Mercury Marine 70 Carburetor Diagram and Parts
I have a Mercury 5 HP 2003 model me5ml serial # 0r030098 outboard.
I would like to rebuild the carburetor. I have been informed that their is no rebuild kit for this unit.
I'm never done this before but I want to give it a try.
1. I think I found the right list of parts, does the above page look right. I could not search on the model number which I found odd but I was able to search on the serial number?
2. Is this the best place to buy the parts?
3. What parts should I replace?
4. I've been told all I have to do is take it apart and soak and clean everything in carb cleaner and put it back together again with the new parts and it should run like a top.
Am I missing anything important. Yes I'll take pictures.
Depending upon the age of the motor a complete new carb can often be less expensive than rebuilding it. Less frustrating too. The newer carbs are not your gran-daddy's Mikuni..... They have pathways so small that even ultrasonic cleaning often does not work.
Honda for example, on their mowers, has had such a problem meeting the EPA regs and that combined with the added Ethanol, has caused nightmares.
The carb for our HRX lawnmower (4th one in 9 years) has gone from $160.00 to $16.00.. That's right the entire carb is just $16.00 because Honda has had such a problem with them. My first one was $160.00 (Honda paid for that one) and they only installed it after they, the dealer/warranty shop, FAILED to make it work by rebuilding it twice. The protocol now is for dealers to simply replace the entire carb.. Everything else about this mower has been simply AMAZING and I really can't complain about Honda when they are simply trying thier hardest to meet USA rules and dealing with CORN in our gas. Considering they have dropped the price of the carb to $16.00, in order to keep customer relations good, kudo's to Honda Motor Company....
NOTHING has worked on this mower to keep the carb pathways clean. Every year I have tried a new stabilizer, drained fuel and even drained the carb bowl but you simply can't get the $hit out of the teeny tiny pathways. Every couple of years I just spend the $16.00, could be $12.00 by now, to replace the carb.. I can now do it in about 6 minutes flat....
Your Merc may also be a Tohatsu/Nissan, depending upon age, and the carbs are very often interchangeable... If your motor is older eg: early 90's and back then re-building the carb often works well...
With lots of the new carbs they do not/will not sell parts for them. This is because the parts such as jets etc. are fixed in place, factory sealed, and can't be tampered with due to EPA standards.