Your On-Line Port'o'Call

Topic Options
Rate This Topic
#408110 - 05/23/08 09:10 PM 2 stroke or 4 stroke - how do I tell
tanjacap Offline
Warrant Officer

Registered: 07/15/06
Posts: 4
Loc: Wyoming MI
I just bought a dinghy. It has a 2001 15 hp Johnson model j15rsib. How do I tell if it is 2 stroke or 4?

Top
A Word from Our Sponsors
#408204 - 05/24/08 09:01 AM Re: 2 stroke or 4 stroke - how do I tell [Re: tanjacap]
GoFirstClass Offline
Retired Boating Bum
Grand Poobah

Registered: 11/21/03
Posts: 14560
Loc: Pasco, WA
Get the model and serial number off the engine and call one of the outboard dealers in Detroit along the river. They'll be able to tell you.
_________________________
"Beachcomber" 1995 Sea Ray 550 Sedan Bridge


Anchor's down......Bottoms Up!

Top
#408206 - 05/24/08 09:04 AM Re: 2 stroke or 4 stroke - how do I tell [Re: GoFirstClass]
jtheile Offline
Admiral

Registered: 02/27/05
Posts: 1897
Loc: North Ridgeville, Ohio
GFC, Wyoming is on the good side of MI, it's outside of Grand Rapids.
_________________________
Joe
Four Winns 225 Sundowner

Top
#408263 - 05/24/08 02:11 PM Re: 2 stroke or 4 stroke - how do I tell [Re: jtheile]
Al Offline
Nautical Alchemist
Grand Poobah

Registered: 01/14/03
Posts: 15070
Loc: Vagabond Wanderer from Mich.
Look for a oil filler cap. If it exists, its likely a 4 stroke. However, many 2 stroke engines also have oil injection for their larger engines - whether or not it includes 15hp or not, I am not sure. For many of the smaller 2 stroke engines, you still have to mix oil yourself (I have to with my 2004 Mercury 5hp dinghy motor)

I am going to guess though that it is a 2 stroke, as I don't think Johnson makes any small 4 stroke engines.

But I don't know for sure, so best thing is to look up the model number on-line or consult a dealer.
_________________________
President and CEO - Napmoor and Doolittle.


2004 Mercury 270 Dinghy.
2016 Grand Design Reflection 29RS 5th Wheel
2016 GMC Sierra 2500HD SLT 6.6L Diesel

previous boats:
1995 Carver 325
1999 Four Winns 268
1999 Four Winns 225
1996 Rinker 180

Top
#408265 - 05/24/08 02:19 PM Re: 2 stroke or 4 stroke - how do I tell [Re: Al]
Al Offline
Nautical Alchemist
Grand Poobah

Registered: 01/14/03
Posts: 15070
Loc: Vagabond Wanderer from Mich.
Look here:

http://www.usboatsupply.com/pdf/EJ/ModelNumberRefGuid2005.pdf

Apparently, a 4 stroke would have a 4 in the model number.
_________________________
President and CEO - Napmoor and Doolittle.


2004 Mercury 270 Dinghy.
2016 Grand Design Reflection 29RS 5th Wheel
2016 GMC Sierra 2500HD SLT 6.6L Diesel

previous boats:
1995 Carver 325
1999 Four Winns 268
1999 Four Winns 225
1996 Rinker 180

Top
#408404 - 05/25/08 03:25 PM Re: 2 stroke or 4 stroke - how do I tell [Re: Al]
deepv Offline
Safety Officer
Admiral

Registered: 03/17/04
Posts: 8606
Loc: SoCal
Use your nose when its running.
_________________________
72% of fatal boat accidents are caused by
boaters that haven't taken a safe boating course.


Top
#408414 - 05/25/08 05:59 PM Re: 2 stroke or 4 stroke - how do I tell [Re: deepv]
seabuddy Offline
Admiral

Registered: 12/15/02
Posts: 28862
See if you can lift the engine without trouble.

Top
#408428 - 05/25/08 08:15 PM Re: 2 stroke or 4 stroke - how do I tell [Re: seabuddy]
Al Offline
Nautical Alchemist
Grand Poobah

Registered: 01/14/03
Posts: 15070
Loc: Vagabond Wanderer from Mich.
Also on a 2 stroke, there should be somewhere inicating to mix oil 50:1 in the gas, or some other ratio.
_________________________
President and CEO - Napmoor and Doolittle.


2004 Mercury 270 Dinghy.
2016 Grand Design Reflection 29RS 5th Wheel
2016 GMC Sierra 2500HD SLT 6.6L Diesel

previous boats:
1995 Carver 325
1999 Four Winns 268
1999 Four Winns 225
1996 Rinker 180

Top
#408443 - 05/25/08 09:42 PM Re: 2 stroke or 4 stroke - how do I tell [Re: Al]
Tanja Offline
Warrant Officer

Registered: 06/19/06
Posts: 16
Loc: Michigan
Thanks for all input, after much looking around, (tanjacap is my husband) he was able to verify it is a two stroke. Working great.

Top

Moderator:  Admin 
Sponsors
New Topics
Have you ever lost your anchor?
by bryan459
09/29/16 01:43 AM
Did I melt my trailer hitch?
by bryan459
09/27/16 01:11 AM
In this age of $600 phones and $5000 per gallon printer ink-
by Frantically Relaxing
09/24/16 10:43 PM
Replaced the floor and carpet in the Mach I this summer
by CharlesS
09/23/16 02:44 AM
New Camper
by CharlesS
09/23/16 02:31 AM
The sales reps at Lumber Liquidators are experts...
by CharlesS
09/22/16 08:51 AM
Horsepower Merc 350 Mag
by Boatbottom
09/21/16 07:22 PM
nine one nine one nine nine one
by Frantically Relaxing
09/19/16 12:16 PM
Two Stroke Blues
by CJS
09/18/16 02:17 PM
Answer about winterizing; ice, 'air gap'
by Frantically Relaxing
09/16/16 10:47 PM

Who's Online
1 registered (WayWeGo), 25 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Newest Members
taylorsharpe, Icarus, Stubie, Indy1K, Andrea
5372 Registered Users
Forum Stats
5372 Members
23 Forums
36839 Topics
557571 Posts

Max Online: 188 @ 09/17/13 04:07 AM