Honda 50hp and Fuel Issues
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Timm Miller
- First Officer
- Posts: 213
- Joined: Wed Jan 07, 2004 4:15 pm
Carbs
Mine did the same thing one year.......high speed circuits were clogged. Tried Seafoam.........I like this stuff but it wouldn't clear them. I do use it to pickle my carbs in the Fall for layup. Go to Walmart and look for Berrymans ChemTool B-12........I have two 12 Gal. tanks. I bought two cans and put them both in one tank........ran it hard.....cycling through high and low circuits until the tank was emptied.................no more problems....runs great. You may have to do this more than once......double dose.........but they will clear. I would try this before you yank the carbs........it worked for me, might work for you.
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Frank C
Great idea just above from TM, but before you even try his idea ...opie wrote:My Honda 50 idles great, runs to 3000RPM great, but above that gets sluggish. I ordered carb parts yesterday. Unless anyone can diagnose my problem from the scant clues above, I'll let you know what happens with my first-time-in-my-carbs overhaul. I am thinking it is gum in the "cross-hairs" that my dealer says exist in the jet.
your symptoms could easily be an air leak in the fuel delivery system. When the motor reaches 3000 rpms the fuel pump has to suck harder to provide enough gas. If that extra suction pulls air instead of fuel, the motor will starve. Fuel delivery systems simply 'wear out' after about 3 years.
How old are your fuel tanks and fuel hoses? The QR fittings can leak air at either end (tank or engine), either male or female parts, so there are 4 potentials. And of course, the primer bulb can leak. In my case, the plastic fuel pickup tubes (inside my Duratanks) had both split where they were pushed over the hose barb, so changing to a new hose and new QRs didn't solve my problem. Search on the word starvation.
A heavy-duty treatment with B-12 is advisable too, but the treatment will work better if the fuel hoses are working right up to WOT. Further, chemicals like B-12 might recondition rubber parts just enough, temporarily, to mask the real source of your problem.
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Timm Miller
- First Officer
- Posts: 213
- Joined: Wed Jan 07, 2004 4:15 pm
Yep
Excellent points Frank.......These are things that should be checked out also.Frank C wrote:Great idea just above from TM, but before you even try his idea ...opie wrote:My Honda 50 idles great, runs to 3000RPM great, but above that gets sluggish. I ordered carb parts yesterday. Unless anyone can diagnose my problem from the scant clues above, I'll let you know what happens with my first-time-in-my-carbs overhaul. I am thinking it is gum in the "cross-hairs" that my dealer says exist in the jet.
your symptoms could easily be an air leak in the fuel delivery system. When the motor reaches 3000 rpms the fuel pump has to suck harder to provide enough gas. If that extra suction pulls air instead of fuel, the motor will starve. Fuel delivery systems simply 'wear out' after about 3 years. ... etc.