In hot weather, the yamaha yp400 fails to start, stalls at idle, and intermittently cuts fuel at high speed. Symptoms are nonexistent until the air temperature exceeds about 95 degrees f. Similar problems with the fuel pumps are frequently documented with owners of majesty yp400 models as well as t-max xp500 and zuma yw125, the last of which was subject to a recall of its own.
The worst 2007 Yamaha YP400 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Electrical1
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Electrical1
- Fuel system1
Recalls 2
Fuel system, gasoline: delivery: fuel pump
- What is wrong
- Yamaha is recalling 9,600 my 2006-2007 cp250 and my 2005-2007 yp400 motorcycles. The engine could stall and be difficult to restart because the wire terminals in the fuel pump wire coupler have corroded. Water can enter from the main wire harness end and run through the harness to the fuel pump coupler.
- Risk
- If the water remains in the coupler for an extended period of time, the terminals can become corroded, which can prevent the fuel pump from operating properly. If this corrosion affects fuel pump operation while the scooter is being ridden, there could be a crash resulting in injury or death.
- Remedy
- Dealers will install a sub-harness which is designed to allow any water between the wire harness and the fuel pump to drain out before it reaches the fuel pump. The dealer will also inspect the connectors. If either the main wire harness connector or the fuel pump connectors is already corroded, the corresponding assembly(ies) will also be replaced. The recall began on may 9, 2008. Owners may contact yamaha at 1‑800‑962‑7926.
Recall number 08V180000 · Recall details
Fuel system, gasoline: delivery: fuel pump
- What is wrong
- On certain motorcycles, a leak at the fuel pump seal may allow fuel leakage.
- Risk
- Fuel leakage, in the presence of an ignition source, could result in a fire.
- Remedy
- Dealers will replace the fuel pump seal free of charge. The recall began on june 18, 2007. Owners may contact yamaha at 1‑800‑962‑7926.
Recall number 07V219000 · Recall details
See all 2 recalls for the 2007 Yamaha YP400
Defect investigations
Motorscooter stalling
Odi opened this pe based on owner and ewr field reports alleging the subject scooters would stall while underway.after opening this investigation, yamaha decided to conduct a corrective safety recall (08v‑180) in lieu of responding an odi information request.with that recall, this pe is closed.
PE08018
Technical service bulletins for the 2007 Yamaha YP400 2
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2007 Yamaha YP400 owners say
Most recent owner complaints, unedited.
Scooter stalls and is hard to start again. Just purchased the scooter less than 60 days ago and it is unreliable as we have been stuck twice in one day.
Compare the 2007 Yamaha YP400
Other model years
Questions about the 2007 Yamaha YP400
Is the 2007 Yamaha YP400 reliable?
Owners have filed 2 complaints about the 2007 Yamaha YP400, close to a typical YP400 model year.
What is the most common problem with the 2007 Yamaha YP400?
Electrical system, with 1 complaint. Next is fuel system (1).
How many recalls does the 2007 Yamaha YP400 have?
2 recalls, covering fuel system, gasoline.
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