View Full Version : 25hp 2 Stroke crankshaft

11-07-2009, 07:12 AM
"Could anyone set the record straight for me? I have a 2004 25Mshc 2 stroke, 2 cylinder Yamaha with a bad rod bearing on the crankshaft. It developed a small amount of rust in the bearing due to what I think is a bad head gasket. Water in the cylinder. Is Yamaha and Mariner the same crank? Can anyone replace the rod and bearing on these one piece crankshafts? I cant afford a new crank and a used one is no where to be found ,so far. Can I look for a Mariner 2stroke 25hp crank? or is Yamaha the only one? I think I can get my outboard back if I can just find a solution to this crank problem. Thank you for your time."

11-10-2009, 04:30 AM
if you has water in the fuel or oil it would do it also

11-13-2009, 10:35 PM
"Rod and bearings can be replaced and are sold seperatly. These are pressed together crankshafts. You'll need to find a shop capable of separating the crank and then pressing it back together. Parts needed are:
6L2-11651-00-00 ROD,CONNECTING $64.59
93310-424W9-00 BEARING $11.84
90209-24M15-00 WASHER,SPEC'L SHAP 2 x $4.13 ea"

11-14-2009, 05:40 AM
Go with repairing yours it will be a better job

11-14-2009, 05:44 AM
Thank you for all the help! Now I just have to find a shop that will do the repair. No one here in Minnesota will do it that I've found yet.

11-14-2009, 07:27 AM
"What?? No one here in Minnesota??? LQQK below.

Minnesota Machine Shops and Engine Builders

A & C Engine Machining 3207633500 1515 N Nokomis NE Alexandria MN 56308
Town & Country Parts Unlimited Inc 3207635138 1423 Broadway St Alexandria MN 56308
A & K Auto Machine Inc 7637124980 626 East River Rd Anoka MN 55303
Northern Sports & Machine 2186341089 651 County Rd 1 SW Baudette MN 56623
NAPA Auto Parts Brainerd / Baxter 2188292823 14751 Edgewood Dr. Baxter MN 56425
Majerus Garage 6519234195 602 Main St Bellchester MN 55027
S & S Machine 9528734362 10520 W 280th Belle Plaine MN 56011
Cylinder Head Express 7637831300 1453 92nd Ave NE Blaine MN 55449
Headwerks Inc 9528846306 8317 Pillsbury Ave S Bloomington MN 55420
Jamsa Machine 2182451989 1027 County Road 440 Bovey MN 55709
Carquest Auto Parts 2188292816 703 Charles St Brainerd MN 56401
Savage Parts Service Inc 9528945826 3715 Highway 13 W Burnsville MN 55337
Cambridge Truck & Auto Repair 7636891246 515 N Emerson St N Cambridge MN 55008
Chubbs Performance Inc 3202483660 12273 57th St Clear Lake MN 55319
Wagamon Bros Engine Rebuilders Inc 7637897227 3719 3rd St NE Col Hghts MN 55421
Block Head Engine Machining LLC 7635335099 5140 West Broadway, Ste B Crystal MN 55429
Superior Balancing 2185468417 23245 Agate Lake Rd Deerwood MN 56444
Swansons Repair 2188472157 Randolph Rd Detroit Lakes MN 56502
Duluth Auto Parts and Machine 2187222688 2022 W 1st St. Duluth MN 55086
Midwest Engine Rebuilders 2187231651 732 E 4th St Duluth MN 55805
Miller Mall Auto Parts Inc 2187225056 1341 Sundby Rd Duluth MN 55811
PDQ Engine & Machine Inc 2186280293 3001 W Superior St Duluth MN 55806
Dons Machine Shop 2184356379 PO Box 244 Fosston MN 56542
Cylinder Head Exchange 7634348334 17243 Rockney St NE Ham Lake MN 55304
Ginthers Auto Machine & Repair 6514372221 8498 190th St E Hastings MN 55033
Carquest Auto Parts Hutchinson 3205872618 PO Box 354 Hutchinson MN 55350
Hartwig Performance Engines 3205875778 23214 County Rd 7 Hutchinson MN 55350
Hennes Machining and Repair 3203826290 9001 E Highway 12 Kandiyohi MN 56251
National Bushing & Parts Co 3206323651 101 2nd Ave SE Little Falls MN 56345
Standard Parts of Little Falls Inc 3206326671 116 2nd St NE Little Falls MN 56345
T C Automotive 5073883402 1930 N Riverfront Dr Mankato MN 56001
Johns Machine & Diesel Repair 3207344441 226 Main St Milan MN 56262
Crankshaft Supply Co 6125212235 2726 Washington Ave N Minneapolis MN 55411
Cylinder Head Service Inc 6127214112 2500 23rd Ave S Minneapolis MN 55404
Matts Motor Worx 3202692262 123 W Nichols Ave Montevideo MN 56265
Bernies Machine Shop 3205894455 402 Atlantic Ave Morris MN 56267
A.O.K. Engine Parts & Machine 2185752755 32517 Highway 10 Motley MN 56466
A & C Automotive & Machine Inc 6516744733 38971 Forest Blvd North Branch MN 55056
NAPA Auto Parts - Northfield 5076459526 108 7th St E Northfield MN 55057
Schultz Machine Shop 3205232402 307 E Lincoln Ave Olivia MN 56277
Auto Value Princeton 7633894381 212 Rum River Dr. N Princeton MN 55371
Dan's Auto Repair 9524473668 16095 Main Ave Prior Lake MN 55372
Baiers Engine Service 5072825586 2915 20th St SE Rochester MN 55904
NAPA Auto Parts 5072808590 1225 Eastgate Dr SE Rochester MN 55904
Scharf Auto Supply Inc 5072893396 620 1st Ave SW Rochester MN 55902
Southern Minnesota Auto Supply 5072884151 504 6th Ave NW Rochester MN 55901
Lloyds Cylinder Head Repair 7634282294 12721 Main St Rogers MN 55374
Broadway Automotive 6514595719 228 Broadway Ave Saint Paul Park MN 55071
Carquest Auto Parts 3203522281 212 Oak St S Sauk Centre MN 56378
Motor Parts Service Co 6514511813 1111 Concord St S South Saint Paul MN 55075
McGill Engineering 5073782921 28809 County 1 Spring Valley MN 55975
Juers Repair, A Div. of Russ Davis Wholesale 2186314332 217 Harry & Rich Drive Wadena MN 56482
Motor Parts & Equipment Inc 5074545930 PO Box 48 Winona MN 55987
The Engine Store 5074520695 116B W 2nd St Winona MN 55987"

11-14-2009, 07:51 AM
"I have called 7 or more machine shops (automotive) and they wont touch it. They can fix or machine a typical crankshaft or journal but these pressed together cranks are a different story. This type of crankshaft is new to me so Its a learning experiance. Even Crankshaft Supply, the largest in the midwest, who does repair marine crankshafts, cant do it. It just baffles me that motorcycle and snowmobile cranks are set up this way. So I will continue my search with the small engine machine shops. Thanks for the list though, I will knock them off, one by one."

11-14-2009, 07:54 AM
"By the way, I've got a 1992 C25ELRQ 25hp crank if you want to do a test run on separating one. $30 + shipping."

11-14-2009, 07:59 AM
"Joe, It's a liability issue with them. Their affraid they'll damage it and you'll make them buy you a new crank assy. ($500 +) You'll have to relieve them of all liability."

11-14-2009, 08:11 AM
"Ahhh, I see your point. Yep, 527.00 is the best price for a new one. But I just have a rod and rod bearing with a little rust on it so it just seemed to me that I could replace the rod and rod bearing saving alot of money. But its been a tough search for some shop to just do the work. But I see the liability issue. Rod and bearing is around $80.00. so the savings is huge. and its a 2004 25hp so its worth repairing. Thanks again for the advise."

11-14-2009, 09:01 AM
"If all else fails, Give these guys a jingle.
Powerhouse Marine Machine, Inc.
301 Division Avenue, Suite 1
Ormond Beach, FL 32174
Phone: 386-672-6444
Email: [email protected] ("")"