{"title":"BMW 2-Valve Boxer Carburetor Tuning Dyno","description":"\u003cp\u003eBMW 2-valve boxer carburetor tuning on the dynamometer - The right carburetor tuning is decisive for the running smoothness, power, torque, and reliability of a BMW two-valve boxer. What is controlled by bits, bytes, and maps in modern motorcycles today was adjusted in classic boxer engines via carburetor jets, jet needles, needle jets, float levels, and ignition timing. Technology has changed, but the requirements of a four-stroke engine for a clean fuel-air mixture have remained the same.\u003c\/p\u003e\n\n\u003cp\u003ePrecise carburetor tuning is especially important for BMW 2-valve conversions. Modified exhaust systems, open air filters, different camshafts, displacement increases, or reworked cylinder heads significantly change the requirements for mixture formation. Standard jetting is often no longer sufficient in these cases. To ensure the engine responds cleanly to the throttle, runs stably, and can reliably deliver its power, the tuning must match the specific motorcycle exactly.\u003c\/p\u003e\n\n\u003cp\u003eDynamometer tuning of carburetor engines requires a great deal of experience and a delicate touch. Changes to the main jet, pilot jet, jet needle, or needle position usually do not just affect a single area, but influence the entire riding behavior. That is why simple trial and error is rarely enough. A clear measurement basis is crucial.\u003c\/p\u003e\n\n\u003cp\u003eAt Sport-Evolution, we use our in-house Dynojet i 250 motorcycle dynamometer with precise exhaust gas measurement for this purpose. Powerful vacuum pumps guide the exhaust gas to the dynamometer's lambda sensors. The mixture composition is displayed in real-time and overlaid directly under the torque and power curve during the measurement. This allows us to see exactly in which range the engine is running too rich or too lean.\u003c\/p\u003e\n\n\u003cp\u003eWhether original BMW Bing carburetors, Dellorto PHM38\/40, or Mikuni TM36\/40\/42 - we professionally tune carburetors and ignition systems to work in harmony. The result is a smoothly running BMW boxer with better throttle response, optimal power delivery, and a technical setup that truly suits the motorcycle.\u003c\/p\u003e","products":[{"product_id":"bmw-2-ventiler-vergaser-zundung-grundeinstellungen-leistungsmessung-express","title":"BMW 2-valve carburetor\/ignition basic settings + power measurement Express","description":"\u003cp\u003e\r\n\t\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eIn the Basic package, the basic settings of the carburetors and ignition are made. The float levels are adjusted, the throttle valves and throttle cables are synchronized and the idle mixture is adjusted using the idle mixture screws. The ignition is adjusted, setting the ignition timing by means of the ignition light gun and the contacts (only for contact ignition system) by means of the closing angle tester.\u003c\/span\u003e\r\n\u003c\/p\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eSynchronization of the throttle valves\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eSynchronization of the throttle cables\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eAdjustment of the idle mixture\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eAdjustment of ignition timing\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eAdjustment of the ignition contacts (contact ignition)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eExpress power measurement\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cp\u003e\r\n\t\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003eIf no changes have been made to the air filter, exhaust and engine, the Carburetor Basic setting is the right one for your BMW two-valve engine. If changes have been made, we recommend the Carburetor Pro package.\u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/p\u003e\r\n\r\n\u003cp\u003e\r\n\t\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\" style=\"font-family: verdana,geneva,sans-serif; font-size: 10pt;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Any carburetor adjustment or tuning only makes sense if the carburetors, engine and ignition system are working correctly. If the carburetors have never been overhauled, it is recommended that this work be done before a tune-up. However, this also involves sealings that cannot be achieved so easily. First and foremost here are the O-rings of the throttle shaft. These are usually hardened after 30 years and no longer seal correctly. As a result, the engine draws secondary air and adjustment and smooth engine running is no longer possible. In the worst case, this can lead to engine damage because the mixture is too lean.\u003cbr \/\u003e\r\n\t\u003cstrong\u003eAn adjustment is not a panacea\u003c\/strong\u003e. If your motorcycle spits and jerks, it is usually not done with just one adjustment. If this is the case, we recommend our diagnostic package. \u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/p\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805946032508,"sku":"BMW VERGASER BASIC","price":305.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/397A3893_9083.jpg?v=1781347536"},{"product_id":"bmw-2-ventiler-vergaser-zundung-auf-prufstand-abstimmen-leistungsmessung-pro","title":"BMW 2 valve carburetor ignition tune on dyno + power measurement Pro","description":"\u003cdiv\u003e\r\n\t\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eThe Carburetor Package Pro is the tuning for all BMW 2V Boxers where changes have been made to the exhaust, air filter, carburetors or engine. Here, in the first step, all basic settings are made as in the Carburetor Package Basic. Subsequently, various driving conditions are run under load on our performance test bench and the exhaust gas values are measured in real time. Based on these measurements, the jets, jet needles and ignition timing are determined. This process is repeated until the mixture and ignition perfectly fit your boxer and its periphery. Finally, power and torque are measured again at the rear wheel and clutch. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/div\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u0026nbsp;\r\n\u003c\/div\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eSynchronization of the throttle bodies\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eSynchronization of the throttle cables\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eAdjustment of the idle mixture\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eAdjustment of ignition timing\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eAdjustment of the ignition contacts\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eCarburetor tuning on dynamometer\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003ePerformance measurement Pro \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u0026nbsp;\r\n\u003c\/div\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Any carburetor adjustment or tuning only makes sense if the carburetors, engine and ignition system are working correctly. If the carburetors have never been overhauled, it is recommended that this work be done before a tune-up. However, this also involves sealings that cannot be achieved so easily. First and foremost here are the O-rings of the throttle shaft. These are usually hardened after 30 years and no longer seal correctly. As a result, the engine draws secondary air and adjustment and smooth engine running is no longer possible. In the worst case, this can lead to engine damage because the mixture is too lean.\u003cbr \/\u003e\r\n\t\u003cstrong\u003eAn adjustment is not a panacea.\u003c\/strong\u003e If your motorcycle spits and jerks, it is usually not done with just one adjustment. If this is the case, we recommend our diagnostic package. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/div\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805946065276,"sku":"BMW VERGASER PRO","price":405.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/397A3891_9086.jpg?v=1781347532"},{"product_id":"bmw-2-ventiler-vergaser-abstimmen-und-se-zundanlage-individuell-programmieren","title":"BMW 2-Valve Carburetor Tuning and SE Ignition System Individual Programming","description":"\u003cdiv\u003e\r\n\t\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eThe carburator package Expert is for all two-valve boxers that have a programmable SE ignition system in addition to more extensive modifications to the exhaust, air filter, carburetors or engine. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/div\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eIn addition to all the basic settings of the Basic carburetor package, various driving conditions are run under load on our dynamometer and the exhaust gas values are measured in real time. Based on these measurements, the jets and jet needles are determined. Then, every 500 rpm, the engine speed is approached and the ignition timing is determined by means of the test bench realtime torque measurement.\u0026nbsp;\u003cbr \/\u003e\r\n\tThis process is repeated until the mixture and ignition perfectly fit your boxer and its periphery. Finally, the power and torque at the rear wheel and clutch are measured again. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/div\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u0026nbsp;\r\n\u003c\/div\u003e\r\n\r\n\u003cul\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eSynchronization of the throttle bodies\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eSynchronization of the throttle cables\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eAdjustment of the idle mixture\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eAdjustment of ignition timing\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eTuning of the carburetors on dynamometer\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003eTuning of ignition map (requirements SE Performance ignition system)\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\t\u003cli\u003e\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003ePerformance measurement Pro \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\r\n\u003c\/ul\u003e\r\n\r\n\u003cdiv\u003e\r\n\t\u003cbr \/\u003e\r\n\t\u003cspan data-mce-style=\"font-size: 12px;\" style=\"font-size: 12px;\"\u003e\u003cspan data-mce-style=\"font-family: verdana,geneva,sans-serif;\" style=\"font-family: verdana,geneva,sans-serif;\"\u003e\u003cspan data-mce-type=\"format-caret\"\u003e\u003cspan data-mce-style=\"font-size: 10pt;\" style=\"font-size: 10pt;\"\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Any carburetor adjustment or tuning only makes sense if the carburetors, engine and ignition system are working correctly. If the carburetors have never been overhauled, it is recommended that this work be done before a tune-up. However, this also involves sealings that cannot be achieved so easily. First and foremost here are the O-rings of the throttle shaft. These are usually hardened after 30 years and no longer seal correctly. As a result, the engine draws secondary air and adjustment and smooth engine running is no longer possible. In the worst case, this can lead to engine damage because the mixture is too lean.\u003cbr \/\u003e\r\n\t\u003cstrong\u003eAn adjustment is not a panacea.\u003c\/strong\u003e If your motorcycle spits and jerks, it is usually not done with just one adjustment. If this is the case, we recommend our diagnostic package. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\r\n\u003c\/div\u003e","brand":"Sport Evolution","offers":[{"title":"Default Title","offer_id":56805946098044,"sku":"BMW VERGASER EXPERT","price":495.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/2390\/1820\/files\/397A3891_9089.jpg?v=1781347528"}],"url":"https:\/\/sport-evolution.de\/en\/collections\/bmw-2-valve-boxer-carburetor-tuning-dyno.oembed","provider":"Sport Evolution","version":"1.0","type":"link"}