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Old 01-16-2010, 01:45 AM   #6196
warnabrother
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Quote:
Originally Posted by 1coolbanana
MORE INFO PLEASE
Proycle and Keintech do 725 kits..

But you're a Pumpkin owner.. why you drooling over our Japcrap
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Old 01-16-2010, 01:53 AM   #6197
1coolbanana
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Quote:
Originally Posted by warnabrother
Proycle and Keintech do 725 kits..

But you're a Pumpkin owner.. why you drooling over our Japcrap

I aint racist and who knows what the future holds.

A DR like youres AND a 725 kit............how awesome would that be
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Old 01-16-2010, 01:53 AM   #6198
greendude
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pro cycle dr725 big bore kit .kit requires barrel to be removed ,bored out and have a cast iron sleeve pressed in by a competant machine shop.very high quality forged piston with small raise in compression to 10:1 . 28km on the motor so far.very happyappox price was kit $620oz machining cost $300, grin on my face when i wind it on priceless .Assembled motor myself

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Old 01-16-2010, 02:00 AM   #6199
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Originally Posted by greendude
just got my 725big bore kitted DR back together this afternoon,took it for a run,Wow, What a difference.still running a stock pipe,airbox and jetting with needle 1 clip richer, but what a grunter with more to come. all for about the cost of a staintune.jetting is not right yet but Im rapt with the results so far. mark
how many hp is it then
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Old 01-16-2010, 02:09 AM   #6200
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HP from what i seen on thumpertalk and procycles own dyno sheets about 48 hp with a pumper carb exhaust cam and airbox mods. dunno about mine it will probably never see a dyno
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Old 01-16-2010, 02:14 AM   #6201
warnabrother
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Quote:
Originally Posted by greendude
HP from what i seen on thumpertalk and procycles own dyno sheets about 48 hp with a pumper carb exhaust cam and airbox mods. dunno about mine it will probably never see a dyno
I'd definitely be getting it tuned on the dyno mate.. get the jetting just right.. you may as well make use of the extra cc's..
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Old 01-16-2010, 02:23 AM   #6202
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still waiting on new FMF powerbomb exhaust q muffler.should arive soon and thinking about procycycles pumper carb kit.before i spend any on tuning
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Old 01-16-2010, 02:29 AM   #6203
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48hp is a bit disappointing I would be hoping for over 50hp. I have a programmable cdi for the dr that i would love to stick on a tuned dr725 just to see what we can get out of the pig.
Maybe your next move is to put the head of a xf650,ccm644 or sachs roadster on it. I think they have bigger valves as well as twin carbs.

What are the torque figures like on procycles example.
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Old 01-16-2010, 02:31 AM   #6204
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what hp is the standard dr putting out roughly?
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Old 01-16-2010, 02:40 AM   #6205
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I read elsewhere DRs suffer in HP from tiny inlet and exhaust valves(same valves as th dr200) but motor has good torque
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Old 01-16-2010, 02:45 AM   #6206
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Originally Posted by mcfear
what hp is the standard dr putting out roughly?
41 i think,someone will be along shortly to correct me.
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Old 01-16-2010, 02:56 AM   #6207
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Quote:
Originally Posted by greendude
I read elsewhere DRs suffer in HP from tiny inlet and exhaust valves(same valves as th dr200) but motor has good torque
if im not mistaken which i prob am, the torque comes because the valves are smaller which raises the velocity that the fuel/air mixture enters the engine.
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Old 01-16-2010, 03:05 AM   #6208
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DRs were never ment to make big HP .there a great workhorse motor.The 725kit does exactly what i wanted it to do keeping the same lazy delivery of power but with heaps more grunt all through the range when you open it up.dont really care about any number on a dyno
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Old 01-16-2010, 03:19 AM   #6209
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Gearing setup

Hi all
I picked up my new DR a few days ago and I am thinking of a change. I am considering changing the back sprocket to a 43 from the standard 41 as it appears the gearing is too high for my needs. Anyone else made this change? and if so are you happy with the change and is their anything else I should be aware of. Also how much did it reduce the top cruising speed on the open road.

The majority of my riding will 50/50 between dirt tracks and road (mainly hills) so I want the low down power.

Here is a picture of the new girl

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Old 01-16-2010, 03:31 AM   #6210
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nice choice Not home.43t gives better fuel range smoother cruising and most impotant more grunt got 1 on mine .top speed was also improved as the motor can pull it better.
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