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Big Block Talk! Everything about swapping a big block engine into your cart!



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Old 09-07-2012, 04:54 PM   #1
Dave in VA
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Default CPP 23 -- Yamaha G16

I was trying to keep this under my hat until CAW, but the question was asked in another thread. Yes, I did upgrade to the CPP 23, with cam and rev kit. Needless to say, I'm grinning from ear to ear, and I'm still tweeking things. I think there is too much pedal movement before RPM's increase, and without a tach I don't know engine speed. And if you nail it from idle there is a stumble, but it's new, and I'm sure things will work out. I don't want to push things too early--have less than 10 miles on it.

The install was pretty much a breeze
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Old 09-07-2012, 04:59 PM   #2
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Default Re: CPP 23 -- Yamaha G16

All back together I think I'll leave the top off for now.
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Old 09-07-2012, 05:20 PM   #3
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Default re: CPP 23 -- Yamaha G16

Sorry Dave, didn't mean to spoil the suprize Several things I've learned about V-Twins, expecially the later twin barrel carbs, they will "bog/hesitate" thru mid range. They were desighned to run at idle or 3800 rpm (with your cam and rev kit 4800 and higher). That's why I tried Mikuni's. I'm hopeing Rifter will work his magic with a single Mikuni soon. Talk to Tom, he will give you the the "straight up awnser". Also look up and read CC-John's posts, he is just amazing with his knowledge about V-Twins If you don't like the "sound" from the stock muffler, many of us have used a "Supertrapp" style muffler, you can take out disc's to change the noise level and it also helps in "tuneing" the "backpressure" they like to run at. Welcome to the BigBlock club....aint tourque FUN PS-nice job on the install..mister retired!
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Old 09-08-2012, 10:08 AM   #4
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Default re: CPP 23 -- Yamaha G16

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Originally Posted by smallblock450sl View Post
Sorry Dave, didn't mean to spoil the suprize Several things I've learned about V-Twins, expecially the later twin barrel carbs, they will "bog/hesitate" thru mid range. They were desighned to run at idle or 3800 rpm (with your cam and rev kit 4800 and higher). That's why I tried Mikuni's. I'm hopeing Rifter will work his magic with a single Mikuni soon. Talk to Tom, he will give you the the "straight up awnser". Also look up and read CC-John's posts, he is just amazing with his knowledge about V-Twins If you don't like the "sound" from the stock muffler, many of us have used a "Supertrapp" style muffler, you can take out disc's to change the noise level and it also helps in "tuneing" the "backpressure" they like to run at. Welcome to the BigBlock club....aint tourque FUN PS-nice job on the install..mister retired!
Thanks, Dave The torque is great!
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Old 09-08-2012, 09:54 PM   #5
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Default re: CPP 23 -- Yamaha G16

Thanks Dave, now your gona make me go to the 30hp block
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Old 09-09-2012, 05:31 PM   #6
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Default re: CPP 23 -- Yamaha G16

Nice Dave! You've got to love the BB.

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Old 09-09-2012, 08:03 PM   #7
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Default re: CPP 23 -- Yamaha G16

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Thanks Dave, now your gona make me go to the 30hp block
Go for it, BrandonThat would be way too much for me

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Nice Dave! You've got to love the BB.
Yeah Ron, it's nice Not many miles on it yet, but it sounds good and the power and torque are great.
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Old 09-09-2012, 08:53 PM   #8
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Default re: CPP 23 -- Yamaha G16

I got to many other things to take care of first, plus i can't find one for the right price
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Old 09-09-2012, 09:39 PM   #9
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Default re: CPP 23 -- Yamaha G16

Nice work Dave, those Sparkeys can't keep up now, Climb the hill!!
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Old 09-10-2012, 01:11 PM   #10
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Default re: CPP 23 -- Yamaha G16

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Nice work Dave, those Sparkeys can't keep up now, Climb the hill!!
Thanks alot I need to get a tach--preferably something that can get wet and still function--to check idle and top speed. It hits a plateau that's faster than with the stock engine, but I haven't got it on a straight flat road to really check top speed. It also smells rich at idle.
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