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Thread: Yamaha 115 2 Stroke massaging
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03-12-2013, 08:54 PM #1Junior Member
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Yamaha 115 2 Stroke massaging
After completing the 40 Yamaha project , looking to massage a 115 hp 2 stroke yamaha, this motor is on a re-worked and lightened '79 Hewes Redfisher 18...
Was thinking the following
Heads plan on shaving them 1.5 mm
Carbs open to suggestions on jetting it is the same carburetors on 115/130
The inner exhuast cover is the same between the two
The tuner is the same 115/130
Blocks are the same also so that rules out port timing
The purpose is to pop it out of the hole as quick as possible and a great cruise speed of around 4500 rpm
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03-13-2013, 07:11 PM #2
If you want to greatly improve holeshot, get a set of intake stuffers from a 225 Special and then stuff the crankcase side of the intake with epoxy. Chris Crason reeds. Clips the rev limiter wire and prop it for about 6400.
http://www.screamandfly.com/showthre...a+intake+epoxy13' Biel tunnel AKA "Flight Risk"
13" Modified Yamaha V4 - 101 mph
21' Paramount
Mercury 300 Promax
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04-19-2013, 06:43 PM #3New Member
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Is Epoxy A- 788 Splash Zone?
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04-19-2013, 11:02 PM #4
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10-07-2015, 05:55 PM #5Junior Member
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Better late than never, finally getting on track for the 115 build
I scored a set of 34mm Carbs and looking for additional suggestions, plan on stuffing intake and running carson reeds and hydro tec heads.
hydro tec suggests 185 mains, however I am going to ship the carbs to them for reworking
I would love to locate a b115 inshore lower unit but no luck
Current Boat is:
1979 Hewes Super Redfisher (Kevlar)
2009 Yamaha 115 2 stroke
HS Lift Plate
Solas Titan HR 21" 4 blade
boat rigged weighs 1150
can turn 5600 with 4 blade at 57 knots jack plate all the upLast edited by bucketmouth; 10-07-2015 at 09:40 PM.