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how much power can u get out of a 150 xr2
- Thread starter james
- Start date
wired
Well-known member
Drilling the mid will just make it louder.
200 carbs wont do squat except make it run way too rich unless you rejet the carbs and rejetting Mercury carbs can get pricey if you dont have a pocketful of jets and a lot of plug reading experience. See if you can find a set of WMV-2's. They are big bore and jetted right for a mildly hopped up 150.
The short tuner might get you 5-6 HP. More on the top end if you get the compression up.
Reeds will make it idle smoother and transition off idle better. Thats about it. Carson reeds are better than the carbon fiber reeds IMHO. Use late model rubberized 4 petal cages. You have a vertical reed motor. It chokes the motor hard over 5000. *****can the front half of the block and find yourself a horizontal reed front half .
Besides losing the crap vertical front half your best bang for the buck will be milling the heads. Run 92 octane and cut the heads to 28 CC with 23-25 degrees total timing. No idle stabilizers.
If you run it over 6000 make sure you are using metal caged rod bearings.
Do all that stuff and you'll run well over 7000. Might want to get some better rods if you hold it there long. The stock puny rods won't live long there.
200 carbs wont do squat except make it run way too rich unless you rejet the carbs and rejetting Mercury carbs can get pricey if you dont have a pocketful of jets and a lot of plug reading experience. See if you can find a set of WMV-2's. They are big bore and jetted right for a mildly hopped up 150.
The short tuner might get you 5-6 HP. More on the top end if you get the compression up.
Reeds will make it idle smoother and transition off idle better. Thats about it. Carson reeds are better than the carbon fiber reeds IMHO. Use late model rubberized 4 petal cages. You have a vertical reed motor. It chokes the motor hard over 5000. *****can the front half of the block and find yourself a horizontal reed front half .
Besides losing the crap vertical front half your best bang for the buck will be milling the heads. Run 92 octane and cut the heads to 28 CC with 23-25 degrees total timing. No idle stabilizers.
If you run it over 6000 make sure you are using metal caged rod bearings.
Do all that stuff and you'll run well over 7000. Might want to get some better rods if you hold it there long. The stock puny rods won't live long there.
atc250r
Well-known member
Stevenlockamy
Active member
The 2.0l is a great motor! I bought 3 xr2 motors! I have the horizontal reed in mine wh29 carbs a 2.5 tuner and drilled mid section also hollowed out no divider plates inside what so ever(bought it that way) with a stock foot 8in jack plate and I worked my 24p small ear chopper prop and its pushing my 16ft 6in enticer 69mph at 6,000rpm it would turn 6,600 before I worked the prop! So my own opinion is do what u want to your motor if it works good if it don't u can always go back! That's my 2 cents