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Repower 2004 AR210 with MR-1 HO's

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
4 boxes and harnesses to make 2 plus spares... one done and one almost done...
I'll dress off the harness in the boat... There will be some mucking about to disable the security, light the Boat Tachs, and connect the ignition switch harness. thankfully thats all been worked out by others before me...
attachment - 2021-11-04T100133.889.jpgattachment - 2021-11-04T125003.899.jpg
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
attachment - 2021-11-03T072220.486.jpgattachment - 2021-11-03T072229.201.jpg
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
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84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
engine assembly started... the first one gonna take a couple days... its like a jigsaw puzzle... and for reference the wave runner service manual is way better quality than the 2006 AR230 HO supplement... i have the stator on, and the gearbox stuck on with no o-ring as I am waiting for a oil pump drive gear... i have 4 of then and only 1 serviceable and i need 2...
 
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84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
starboard engine Injection/airbox, done, oil tank cleaned and flushed, oil pressure Tee fitting gonna work fine... waiting on parts now for final assembly, making sure all the hoses fit, just need to clean up the bottom part of the header... gonna start on the port engine this week. Im glad i did it this way ... its a little more work however I'm now pretty familiar with how these things go together...


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84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
some more pics from this weekends work... Prepping the exhaust...

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Last edited:

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
attachment - 2021-11-10T152916.413.jpgattachment - 2021-11-10T152927.413.jpg
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
Had to improvise some of these aluminum washers... I could have made them on the lathe but I found these suspension bushings for my old golf cart, a quick snip with my handi cut and I saved $60 and didn't have to wait for unobtainium from Shizuoka....


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84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
started putting together the port engine today... I had so steal some parts from my Milkshake motor :eek: but all the parts I needed were clean and serviceable. I also looked over the oil pump situation... Im guessing that the VX pumps would work however I'm not gonna take a chance this far in... two new 6B6 oil pumps and gaskets on order from Yamaha

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84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
squirted a little zinc chromate on some of the parts after cleaning with a stainless wire brush
 

Attachments

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
ready for oil pumps.... did I mention that there are a boat load of bolts in these motors and they all have different torque specs.... :rolleyes: and there are more hose clamps that bolts i think :banghead:

attachment - 2021-11-16T190133.967.jpgattachment - 2021-11-16T190204.093.jpg
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
ok Just solved the MR-1 oil drain challenge... for less than $30 a side !!

3068-08-125 | Metric Banjo Bolt M8X1.25 $3.80 each
3069HB-04-08 | 1/4" Hose Barb x M8 Metric Banjo (Low PSI) $6.35 each
Stainless Steel Bulkhead 1/4” Hose ID Barb Fitting Fuel Water Boat Air Splicer $16 each
dexierp Protection Force Round Cap for 1/4" 6.5mm OD (Pack of 50) Pipe Post Tube End Cover 1/4-20 UNC 1/4-28 UNF Screw Thread Protectors Elastic Rubber $10

I have a big roll of 1/4" USCG approved 1/4 fuel line

and i already ditched the grease fitting in the thermostat housing so ill pop the bulkhead connector in that hole....
I'll just use my Milwaukee M18 transfer pump necked down to 1/4" to suck the sump dry at oil change....

easy peasy
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
Pictures or it didn't happen!
parts on order today... will post as soon as its complete and installed... trying to get this project wrapped up by Xmas and this has to go on before the new engines go in the boat..
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
Parts starting to trickle in... ill prolly open these bolts up a bit in lathe and mill to flow a bit better.. or not...
you get the idea a banjo fitting to go with the rifle and cross drilled bolt and some 1/4 inch line... and suck the last quart and a half out....

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Last edited:

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
6B6 oil pumps and new gaskets shipped today... be back in business soon...
 

ThatJeepGuy

Jetboaters Commander
Messages
490
Reaction score
714
Points
192
Location
Brooksville Florida
Boat Make
Yamaha
Year
2017
Boat Model
AR
Boat Length
24
Great work! I can’t be the one of the only members that checks this thread daily for updates…?
 

84rzv500r

Jet Boat Lover
Messages
101
Reaction score
139
Points
67
Location
Lower Keys MM29
Boat Make
Yamaha
Year
2004
Boat Model
AR
Boat Length
21
LOL yeah well the REAL job was busy the last few weeks and my oil pumps wont show up till this Tuesday however I may have some updates today in the MR1/VX1 oil drain challenge...
 

Julian

Jetboaters Fleet Admiral 1*
Staff member
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Location
Raleigh, NC 27614
Boat Make
Yamaha
Year
2016
Boat Model
242X E-Series
Boat Length
24
starboard engine Injection/airbox, done, oil tank cleaned and flushed, oil pressure Tee fitting gonna work fine... waiting on parts now for final assembly, making sure all the hoses fit, just need to clean up the bottom part of the header... gonna start on the port engine this week. Im glad i did it this way ... its a little more work however I'm now pretty familiar with how these things go together...


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That engine looks so much bigger out of the boat!!!
 

Julian

Jetboaters Fleet Admiral 1*
Staff member
Administrator
Messages
16,971
Reaction score
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Points
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Location
Raleigh, NC 27614
Boat Make
Yamaha
Year
2016
Boat Model
242X E-Series
Boat Length
24
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