Reed Valve Modification : Write-up: DLE-20 reed valve block mod - RCU Forums - I didn't take as many pictures as i would have liked but i hope this gives you a good idea of how to do the mod.. You will be buying a precision product made with american materials, tooling and equipment. Although comparatively new to the market place in reed valve production, we have 35 years experience in modifying outboards and cutting reed valves. It has a flange on it for mounting to flat carb & engine surface and reed part is. The reed block surfaces are not flat and reeds in some cases don't lay perfectly flat against block. I found that on the rear intake's there is a black plastic or aluminum reed block between engine & carb.
You will be buying a precision product made with american materials, tooling and equipment. And bad reed valve and a pick and place system was designed. Koso dual display egt gauge. Reed petals are a high wear item and should be inspected more often than not. I didn't take as many pictures as i would have liked but i hope this gives you a good idea of how to do the mod.
JS Motorsport TechnicalThe Oil tight Norton - JS Motorsport from jsmotorsport.com I didn't take as many pictures as i would have liked but i hope this gives you a good idea of how to do the mod. All china engines reed block mod. Reed valve modification for maximum performancedalm video ni aku nak share dengan korang semua macam mana nak modifikasi reed valve standard motor supaya jad. You must be certain not to ding or gauge the reed pedal seating surface when modifying the cage. I did it to my honda cr250 and was successful. Reed petals are a high wear item and should be inspected more often than not. Here are the photos and a short explanation of the reed valve mod and the bowman ring installation for the dle 35ra. 2) because the reed petals only need to travel half the distance of that on a.
I recently replaced the stock reeds on my 85 270r flat tracker with the boyesen brand pro series carbon fiber reeds and found that the design of the reed cage was actually blocking off quite a bit of flow that the reeds were actually open for.
As the factory developed the engine they ran into breathing troubles. It prevents the mixture from moving back to the carburetor. The unique design of the vforce reed valve system features double the reed tip surface over a conventional reed valve design. And bad reed valve and a pick and place system was designed. Koso dual display egt gauge. This is a simple modification that can easily be done at home with a dremel or other tool. From the tip of the air cleaner to the tip of the silencer your 2stroke is a series of varying sized and shaped passages dealing with varying rpm, load and harmonics so increasing the size (or You must be certain not to ding or gauge the reed pedal seating surface when modifying the cage. The reedcage is one of the easiest to modify and first attacked pieces of a 2stroke. All china engines reed block mod. This was done after about 500 flights and two. On a shoestring budget and a single patent in hand eyvind boyesen revolutionized reed induction performance. They ran the engine on a dyno.
If you don't have reed valve covers, then we need a large vacuum cap to block the air intake on the vacuum switch that feeds air to the reed valves. As the factory developed the engine they ran into breathing troubles. On and off the race track circuit, the boyesen name became synonymous. 2 in order to physically sort the reed valves from one location to another. 1) the reed petals only travel half the distance as a conventional reed valve design to get the same airflow.
Performance Reed Valve Assembly Full Fiber Reed US 820/610 from www.kprecisionllc.com It prevents the mixture from moving back to the carburetor. It dawned on me that there is no write up for a dle55 reed block mod, only one for the dle20 which is not the same engine. From the tip of the air cleaner to the tip of the silencer your 2stroke is a series of varying sized and shaped passages dealing with varying rpm, load and harmonics so increasing the size (or The unique design of the vforce reed valve system features double the reed tip surface over a conventional reed valve design. Porting your stock reed cage. All china engines reed block mod. With a manometer hooked to the crankcase. On a shoestring budget and a single patent in hand eyvind boyesen revolutionized reed induction performance.
If it's direct crankcase reed induction, about the only thing you can do is find a bigger reed cage and carb.
Dle 55 reed block mod with pics! From the tip of the air cleaner to the tip of the silencer your 2stroke is a series of varying sized and shaped passages dealing with varying rpm, load and harmonics so increasing the size (or This was done after about 500 flights and two. I get a significant boost in low end torque, with no sacrifice in top end power for it. It has a flange on it for mounting to flat carb & engine surface and reed part is. 2 in order to physically sort the reed valves from one location to another. 2) because the reed petals only need to travel half the distance of that on a. With the coil out of the way take an 8mm or 5/16″ wrench and remove the bolts that hold the reed valves in place. I found that on the rear intake's there is a black plastic or aluminum reed block between engine & carb. I also talk a little bit about s. Unplug the black wire w/ white stripe and the yellow wire w/ blue stripe from the coil and you should be able to rotate the coil back and out of the way to get a perfect shot at the reed valve. I didn't take as many pictures as i would have liked but i hope this gives you a good idea of how to do the mod. You will be buying a precision product made with american materials, tooling and equipment.
You must be certain not to ding or gauge the reed pedal seating surface when modifying the cage. He includes instructions for the reed valve mod as well (recommended for all china engines). On a shoestring budget and a single patent in hand eyvind boyesen revolutionized reed induction performance. March 21, 2013, 03:15:26 pm » hi uwe and dj, it seems that the tdr reed is actually a special made by an american race specialist, his #34 seems to be the type that fits rd 250/350/400 cages with a single petal and the centre support cut away. It has a flange on it for mounting to flat carb & engine surface and reed part is triangular shaped.
Write-up: DLE-20 reed valve block mod - RCU Forums from farm9.staticflickr.com This is a simple modification that can easily be done at home with a dremel or other tool. The reedcage is one of the easiest to modify and first attacked pieces of a 2stroke. In this video, i explain the function of a reed valve and the issues you might have with them when servicing your dirt bike. Although comparatively new to the market place in reed valve production, we have 35 years experience in modifying outboards and cutting reed valves. If it's direct crankcase reed induction, about the only thing you can do is find a bigger reed cage and carb. Mriggs,i have studied reed valves a lot in the last few years,i also have been in the outboard business since the early 70s,and have seen a lot.the industry standard untill recently has been carbon steel reeds on aluminum cages,with great success.in the mid 90s merc went from alum to rubber coated cages,somewhat after omc went with rubber cages on their 3 litre motors,and looper v4s.the. Motorcycles using boyesen reeds were consistently outperforming bikes using other models of intake induction. If you don't have reed valve covers, then we need a large vacuum cap to block the air intake on the vacuum switch that feeds air to the reed valves.
In this video, i explain the function of a reed valve and the issues you might have with them when servicing your dirt bike.
Motorcycles using boyesen reeds were consistently outperforming bikes using other models of intake induction. Rd reed valve modification « reply #3 on: You will be buying a precision product made with american materials, tooling and equipment. I did it to my honda cr250 and was successful. 1) the reed petals only travel half the distance as a conventional reed valve design to get the same airflow. Koso dual display egt gauge. Find the reed valve covers on the front and back cylinder (see pics above) and take an 8mm (or 5/16) wrench and remove the bolts that hold the reed valves in place. Dle 55 reed block mod with pics! If it's direct crankcase reed induction, about the only thing you can do is find a bigger reed cage and carb. Reed valve modification for maximum performancedalm video ni aku nak share dengan korang semua macam mana nak modifikasi reed valve standard motor supaya jad. If you don't have reed valve covers, then we need a large vacuum cap to block the air intake on the vacuum switch that feeds air to the reed valves. In this video, i explain the function of a reed valve and the issues you might have with them when servicing your dirt bike. Also a couple of smaller vacuum caps to plug some other holes that are gonna reed valve covers are easy to make from 6 mm aluminium plate.
