'My' Dyna is really my wife's, although we both ride it and she lets me tinker on it occasionally. She struggled riding it from new, trying to get the thing moving from stationary, especially on a climb. So I fitted an SE air filter and a carb jet kit plus SuperTrapp 'internal series' slip-ons, with their suggested number of discs. It's a little sharper and sounds just right now.

However the major change that woke it up was to fit an SE 21T crank sprocket kit, to reduce its gearing. It now rolls on in top gear like a Harley should - just the thing a girl wants! I have also fitted a True-Track kit, to tighten up its handling. So subtle improvements, nothing too drastic!

Next step, probably at the next service, is to replace the cam tensioners, which I intend doing with the hydraulic conversion kit. That provides an opportunity to pep it up a little more, by fitting a set of new cams. Not after anything wild here, just improved low and mid-range performance. My wife is NOT going to be revving this thing to the red line everywhere she goes!

What cams can you suggest please?

 

TW26 will work well. That engine must be spinning about 3500rpm at 709mph. The 26 cams, or maybe the 21s in this case, may provide enough low end to let you get back to stock gearing??

 

Good suggestions. I reckon either will do. According to Andrews, their TW21 gives more torque for all around riding with heavy bikes, stock compression ratios and stock pistons. (1700-4800 RPM). The TW26a is also for stock compression ratio and will add torque and HP at lower and middle RPM ranges. (1800-5200 RPM). A Dyna is hardly 'heavy', but I like the rev range quoted. Thanks for that! Current gearing in top is around 19mph/1,000rpm, which is just great.

 

I like the Andrews TW26 cams I put in my RoadKing. I went with the gear-drive set-up as well. Mikuni HSR42 carb. It pulls hard right from the bottom, idles smooth and there are no flat spots anywhere in the rpm range. I wanted a reliable touring bike not something that fouls plugs every week. These cams work great. The only thing I ever do to this ride is change the oil. I put plugs in once a year not because they're fouled but just for general maintenance,

 

3500rpms at cruise is not my cup of tea; but different strokes........................... Good luck with the cam upgrade.

 

We live in the UK and don't have the long open roads you have in much of the US, so our style of riding is different. Riding twisty country roads with lots of bends and hills it is much nicer to do that in one gear, not often using high engine revs, just rolling the throttle. Thanks for your help.

 

As I have posted before I am happy with my 204's.... They did not change the personality of the powerband they just added more of it. I put them in a glide I would imagine they would be more noticeable in a lighter bike.

One thing for sure... there are a lot of cams and a lot of opinions.

 

709 mph at 3500rpm would be very impressive.

 

Live in the hills, mountains, twisties also. 21's work great in a 88" for where and how I ride.

 

Whoops, grbrown is in the UK, should have said 709kph.