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  1. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks. I have already bought some tools I need to rebuild the thing. When I opened the box trying to start it the first time, try after try it eventually ripped a piece of skin from my finger. I really don't remember how many times and how hard I had pulled the rope. Took it to a shop, after...
  2. 2

    What's wrong with my new 6hp Tohatsu?

    It looks like I have solved the problem. It feels so good when you can start the engine with one pull everytime. First time I can do it. What I did is adjusting the valve clearance of exhaust side. After every adjustment I did the compression testing. When clearance is enlarged from 0.15mm to...
  3. 2

    What's wrong with my new 6hp Tohatsu?

    I really don't know what's going on, the leak down tester is very straightforward to use. I thought the first one was not working correctly, but the second one is the same. The compression test reading went up to almost 60psi from 35psi after adding some oil to the cylinder. That's why I am...
  4. 2

    What's wrong with my new 6hp Tohatsu?

    I got a new leak down tester from Harbor Freight, it's the same. No leaking but I can hear the high pitch noise. I have no idea about this. If you have done this before, please let me know what you are thinking about.
  5. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks. I went back and reset the valves. Did the compression test, it's 30 psi. I am planning to check everything or even rebuild it. I will keep you posted. It's going to take a while to get it done.
  6. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks. The Harbor Freight's Maddox branded leak down tester has really puzzled me. It shows not leaking but I can feel and hear the air coming out from the intake silencer and from the oil cap. I will contact the Tohatsu again. I don't worry too much about the warranty if I can fix it myself...
  7. 2

    What's wrong with my new 6hp Tohatsu?

    Just started the engine with 4 hard pulls. Let it run for 5 minutes then turned if off. Try to restart it, after more than 15 hard pulls, I gave up on it.
  8. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks Paul! It looks like I made a mistake by adjusting the valve clearance on the exhaust stroke instead of compression stroke. I have cleaned the carburetor multiple times which didn't solve my problem. Could you be more specific about the needle not seating correctly? Which needle? I just...
  9. 2

    What's wrong with my new 6hp Tohatsu?

    I found the "T" mark on the flywheel. Removed the cylinder head cover, measured the clearances of the intake and exhaust valves, they are just so tight that the clearance is thinner than 0.0024 inch (0.06mm). So I adjusted them by the manual, did the compression test, the reading is 75psi. but...
  10. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks my friend, I am determined to find the answer for the problem.
  11. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks, if the exhaust rocker is removed, then will the valve spring be kept in place? I am aslo having trouble to find the flywheel “T” mark and cylinder mark by the service manual, please kindly let me how to locate them. It's so confusing for a newbie.
  12. 2

    What's wrong with my new 6hp Tohatsu?

    Please take a look at 2:06 of this video I believe it looks like the same one. Now if it does have the automatic compression release, then how can I do the compression test? Taken from the Tohatsu service manual, those are simple steps. It does mention that removing Exhaust rocker arm will...
  13. 2

    What's wrong with my new 6hp Tohatsu?

    The Tohatsu's service manual has some detailed instructions of compression test which doesn't mention the automatic compression release. I guess since it has single cylinder so it's safe to assume it doesn't have it.
  14. 2

    What's wrong with my new 6hp Tohatsu?

    Thanks, the fuel cap was open. I might have bought a lemon, didn't know much about the outboard motor. I borrowed two compression testers from Autozone and Oreily to double check it, the reading is very low like 15 psi. I will do a leak down test to find out where the leaking is coming from. I...
  15. 2

    What's wrong with my new 6hp Tohatsu?

    I bought it new about 3 years ago and started to use it last year. It has only about 10 hours of usage. I could not start it the first try. Cleaning it the carburetor has made it easier to start it. Sometimes it is easy to start it and sometimes it takes forever to start it. And sometimes it...
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