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09-12-2008, 08:49 PM
| #1 (permalink) |
| Newbie Join Date: Sep 2008
Posts: 1
|  question on vacuum operated fuel valves
I have a 150cc chinese bike that has an engine vacuum operated fuel valve. Do these types of valves operate as just a valve or is there some fuel pumping action also? My valve leaked gas so while I'm waiting for the part I installed a manual shut off valve. (I did leave the vacuum line attached to the old valve to hopefully prevent problems with a vacuum leak). However the bike cuts out when going up hill (about a 5% grade) and won't immediately restart. But when I let set for about 10 - 20 seconds it starts right up and is able to go downhill and on straightaway with no problem. But I don't trust the bike to go too far so I'm not sure if it would happen on the level road at continuous highway speed. The gas tank is mounted in the rear, higher than the engine and I thought it was a gravity-feed system. The engine is based on the honda gy6 engine technology. Any help would be appreciated. |
