"shop-teacher" (shop-teacher)
03/26/2018 at 23:07 • Filed to: Wrenching sucks sometimes
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"shop-teacher" (shop-teacher)
03/26/2018 at 23:07 • Filed to: Wrenching sucks sometimes | 5
| 12 |
I got some good evening wrenching in tonight. My wife took Shop-Teacher Jr to the library after dinner, and Shop-Teacher III had to go to bed early (this is what happens when you don’t nap child!), so off to the garage I went with a belly full of bacon and shrimp quesadillas (which were amazeballs).
I managed to get my Kymco 150 (the red scooter) fully ready to rock. A tremendous about of fiddling, yanking, pulling, etc got the new exhaust on. I changed the oil and spark plug, and let it idle for about 10 minutes to get all that fresh fuel worked through and things moving again. It hadn’t run since the end of August. Of course it rained tonight, so I couldn’t ride it, but at least it’s finally in fighting shape.
The $100 Elite 80 will start on carb cleaner, is drawing fuel down now, and will stay running if I stay on the throttle. It won’t yet idle or restart on it’s own. I only ran it for about a minute or two, because it’s kind of loud and I didn’t want to wake up the kiddo. It was running better even in just that time, so I’m hopeful that a good old Italian tune-up will sort it out.
Original post:
My $100 Honda Elite is mechanically back together. It’s not sucking fuel down to the carb. I added an inline fuel filter and a loop of extra fuel line to keep it away from the shock) spring. Maybe it’s too torturous of a path?
My Kymco Super 8-150 runs now with it’s new exhaust, but the rear mounting bolts holes don’t line up.
I am frustrated.
Urambo Tauro
> shop-teacher
03/26/2018 at 14:26 |
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If you disconnect the line from the carb, can you prime it with fuel up to that point?
cmill189 - sans Volvo
> shop-teacher
03/26/2018 at 14:28 |
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If that carb has a bowl that’s fed via gravity, they don’t take kindly to in-line filters. Too much flow resistance. If that’s the case, the only sucking is happening from the bowl, not from the tank.
Darkbrador
> shop-teacher
03/26/2018 at 15:05 |
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The carb is well below the tank, there is no apparent kink in your fuel line, so unless the filter is clogged/defective the issue is not from the fuel line.
Most likely, the carb has a bowl that fills up with gas, and this is metered by a little needle attach to a float. Once the float ... floats to a certain point, it pushes the needle up in its seat and shut the flow of fuel to the bowl. Did you check that ?
JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
> shop-teacher
03/26/2018 at 16:37 |
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what size Elite is it? the little Honda carbs from older 50cc and 125ccs can get their float valves all gummed up very easily because they are so tiny, if not perfectly clean, no fuel will flow. Also, they use a sealing rubber o-ring that gets gummy when exposed to ethanol and can stick the float valve closed.
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shop-teacher
> Darkbrador
03/26/2018 at 17:40 |
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No, I was hoping to get lucky and not have to pull the carb, because access to the bolts is a biatch.
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shop-teacher
> JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
03/26/2018 at 17:42 |
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Its an 80. Any insight on those?
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shop-teacher
> Urambo Tauro
03/26/2018 at 17:42 |
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Good question, I’ll to try that.
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shop-teacher
> cmill189 - sans Volvo
03/26/2018 at 17:43 |
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Gotcha.
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JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
> shop-teacher
03/26/2018 at 17:48 |
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I don’t know about those carbs, I would suspect they are similar to the 50ccs and older 125ccs though, what year is this scoot? The 80's ones had the sticky float valve seal issue, but they all have tiny flow channels and can clog quite easily.
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shop-teacher
> JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
03/26/2018 at 18:06 |
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Its a 2000, but it’s been sitting with gas in it since ‘09
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JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
> shop-teacher
03/26/2018 at 18:09 |
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I’magonnasay clogged float needle valve in the carb. You might be able to just blow it out with spray carb cleaner without removing it, but I’d take it off and flush it well if I were doing it. The 2000's vintage scoot should have a constant velocity slide valve carb, which is a bit more robust (and complex) than the 80's style carbs, but tiny carbs are tiny and get clogged easy. Honda scoots run pretty lean and the carbs have tiny channels and valves in the <250cc ones.
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shop-teacher
> JawzX2, Boost Addict. 1.6t, 2.7tt, 4.2t
03/26/2018 at 19:05 |
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I’m going to try to spray it down while it’s installed, and hopefully get lucky. Getting the carb off apparently requires pulling the rear tire off.