Head gasket Yamaha outboard motor replaces the following numbers: 6E7-11181-00-11181-A1 REC6E7 6E7-11181-00 SIE18-3828 GLM33890
C25 90-93, CV25 HP 90 HP
C40 HP 90-93, HP CV40
C55 HP 89-91, HP CV55 89
30 HP 87-97
Head gasket Yamaha outboard engine: 40 HP HP CV30 (1989) (1984-1994) (1986-1993) HP 50 P50 HP (1984-1993) Replaces: REC6H4-6H4-11181 11181-00-00-00 SIE18-00 6H4-11181-A1-3830
Head-gasket Yamaha 250 HP (61B) 90-94
25 hp 2 cyl. 88-93
03-05, 05-09, 03-09, LZ250 VZ225 03-09, VZ200 VZ250 Z250 03-05
6G5-11181-A2-00, 6G511181A200, 6G5-11181-A2, 6G511181A2, 6G5 11181 A2, 6G5-11181-A3-00, 6G511181A300, 6G5-11181-A3, 6G511181A3, 6G5 11181 A3, 6G5-11181-00-00, 6G5111810000, 6G5-11181-00, 6G51118100, 6G5 11181 00
225 HP EFI 3, 0 l b
8 (232cc)/9.9 HP 4-stroke 2cil
A head gasket is een afdichting die zich bevindt tussen de cilinderkop en het motorblok.
By aging or overheating and use exhibits a head gasket wear, so after much use replacement will be necessary. The most common leak is that between the cylinder and the cooling water slot. A leaky head gasket can have different effects of small oil leakage, less power due to lower compression to cooling water loss and overheating. A leaky head gasket is rather common, in both gasoline and diesel engines and regardless of the manufacturer of the engine.
Replacement is easy in theory, but in practice, especially in modern Yamaha outboard motors quite some time, because many parts have to be removed, for the cylinder head can be kept. Especially with the modern Yamaha injection engines is that the case. The cost for a repair for more than 95% are in labor. The head gasket yourself often costs but a few tens of euros, so better do it yourself and purchase a repair manual. The cylinder head bolts should be tightened with a torque wrench, in multiple steps and in an order specified by the manufacturer.