READ this for CV carbs and stock carb fixes on your evolution motors
HDF Community Team
Joined: Dec 2005
Posts: 5,394
Likes: 2,596
From: NC USA
I'd be curious to hear your and reasons for timing @ 20 degrees by the double dots @ 1000 rpms. Not disputing the method, but I've never tried that and have never spoken to anyone who has, successfully. Always went by the 35btc single dot.
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Cruiser
Joined: May 2020
Posts: 144
Likes: 33
From: Carlisle, Pa
The 2 dots are per my service manual. Ive seen and read my share of forums about how this is incorrect but thats what it says. The bike runs strong with the jetting I have in it now, its just odd how it doesn't run as good with the stock jetting of 42/175 (CV40).
HDF Community Team
Joined: Dec 2005
Posts: 5,394
Likes: 2,596
From: NC USA
As mentioned, they all act a bit differently. HD dyno runs all new engines and the ones that make the most power generally get put in Police bikes. The ones that don't make advertised power go to the recycle bin, literally. So, no argument about "they are all a little different."
You may have done this already but if not, have you timed them at 20/2 dot @ spec speed and then rev them above 2000 to verify the 35btc dot is centered? Please, not trying to be controversial here, just curious
Cruiser
Joined: May 2020
Posts: 144
Likes: 33
From: Carlisle, Pa
Yes sir I have. Like I said the bike runs reallybetween strong, zero issues with running.
I was just dumbfounded about the difference between the two engines.
I always thought that since both are configured identical that they'd need the same jetting.
I learned something new, this not ALWAYS going to be the case.
I was just dumbfounded about the difference between the two engines.
I always thought that since both are configured identical that they'd need the same jetting.
I learned something new, this not ALWAYS going to be the case.
Seasoned HDF Member
Joined: May 2008
Posts: 21,095
Likes: 12,639
From: South Carolina
I have to stop every 100 miles or so and drain gas from the tank so it won`t overflow.
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