2004 yamaha yz125 compression test|YZ125 and YZ250 Compression Testing : traders I'm using a compression gauge that has a ten inch flex hose, so it could increase the total volume of the combustion chamber and lower the reading. However, it has a valve in . A Programação de TV é a seção da Trivela que mostra onde .
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Yamaha YZ125 Compression Test
My stock 2005 yz125 after breaking read 165-166psi. I don't think it matters much but I don't think you need to disconect the carb. Just hold the throttle open and the kill button .I'm using a compression gauge that has a ten inch flex hose, so it could increase .
YZ125 compression testing.
My first question would be, did you hold the throttle WOT while doing the test? This has a huge effect on cylinder fill and compression number. Just went thru this last week with .
How to do a compression test on a YZ125. This procedure will also work on other carbureted 2 stroke dirt bikes, but check your service manual for correct co.
I'm using a compression gauge that has a ten inch flex hose, so it could increase the total volume of the combustion chamber and lower the reading. However, it has a valve in .
I have had a lot of people ask me how to do a compression test so I decided to make you a video explaining step by step.
Wet compression test is putting a small amount ( 1/2 teaspoon) of oil into the cylinder and the do the compression test. You reading should be higher than the dry test. . I'm looking for the "safe psi range" for both the 2012 YZ125 and 2012 YZ250 compression. I'd like to base my rebuilds on how the compression reads if that's a smart .
I have a 2000 YZ125 and my compression tested at about 150. My bike runs great. Does anyone know what the service manual recommends that it should be at?
YZ125 and YZ250 Compression Testing
Increasing compression is the easiest way to create horsepower. It is also the quickest way to shorten the lifespan of a top-end. For ?04 Yamaha dropped the compression ratio from 11.0:1 to. I checked my compression on my YZ 125, 145 PSI. I just bought the bike, and me and my father are going over the whole bike. My repair book said that the compression . OK, i have had my 02 Yz 125 for about 3-4 months now (moved up from honda 230) and i just got back from a trip to WV and im doing some basic maint. on the bike (dump gear oil, clean air filter, new rear tube and tire, brake fluid) and last night while i had the bike apart i decided to do a compression test, and i tested it 3 times and always got a reading of 105-110 . KAYABA SSS SHOCK SETTINGS For hardcore racing, we ran this setup on the 2019 Yamaha YZ125 (stock clickers are in parentheses): Spring rate: 4.7 kg/mm Race sag: 100mm (105mm) Hi-compression: 1-1/2 .
At the time, Yamaha offered a YGT (Yamaha Genuine Tuning) kit, which had a ported cylinder, a high-compression head, a carb, a pipe and a new ignition that allowed you to get rid of the battery and starter. At the distributor level, . Corey Neuer/5'11"/165 lb/IntermediateI spent a lot of time switching between the 2004 YZ250F and the 2004 YZ125, mainly because the YZ125 felt so light and easy to maneuver—and this is even more . I'm looking for the "safe psi range" for both the 2012 YZ125 and 2012 YZ250 compression. I'd like to base my rebuilds on how the compression reads if that's a smart thing to do. Any info/insight is greatly appreciated. Thanks!
My brother just purchased a very clean '04. Did a compression test on it yesterday and it only read 70 psi. We checked it cold and did not pull the de-compression lever. Other than that the bike runs good and starts easy. It pulls good (not as much as my '03 CR250r two-stroke, but better than I thought a 250f would).
But i came across a compression tester on ebay for like 20 dollars, and after opening the box i imediatly regretted the purchase. So i thought i would go give it a test, and i knew that a 250 should have around 240 psi compression, this stupid thing only reads 125 psi. Is it even possible to have compression that low and have the bike still run?
2022 YZ 125 Introduction. By Matt Mattoon and Jimmy Lewis. Photos By Trevor Hunter . This is the biggest revision the YZ125 has seen since 2005 and the introduction of the aluminum frame. Yamaha has been making a YZ125 since— well, likely before you were born. In your history, 2005 was the last major revision with an aluminum frame. Can't really do a compression test on these due to the decomp plug in them releasing the pressure, typically around 90 pounds. . 3094 posts Compression Ratio. 12.5:1 Starter. Kick Fuel Requirements. Regular . 2004 Yamaha YZ 125. ,099 MSRP. 2004 Yamaha YZ 250. ,999 MSRP. 2004 Yamaha YZ 450F. ,299 MSRP. 2004 Yamaha Road Star Warrior. ,099 MSRP. 2004 Yamaha Road Star Silverado Midnight. ,299 MSRP. >With the AD system enabled: There are no cranking compression figures published that I know of, but it should generate roughly 100-120 within 5 compression cycles. > With the AD disabled. Remove the cam cover, push the AD flyweight out to retract the decomp pin, and wedge a small piece of folded match book cover, business card, etc., in behind .
2004 Yamaha YZ 125 pictures, prices, information, and specifications. Specs Photos & Videos Compare. MSRP. ,099. Type. Off-Road . YZ 125 Year. 2004 . Compression Ratio (Secondary) 10.8:1Compression Ratio (Secondary) 10.6:1 Starter. Kick Fuel Requirements. Regular . 2004 Yamaha YZ 125. ,099 MSRP. 2004 Yamaha YZ 250F. ,599 MSRP. 2004 Yamaha YZ 450F. ,299 MSRP. 2004 Yamaha Road Star Warrior. ,099 MSRP. 2004 Yamaha Road Star Silverado Midnight.
I need to know the compression numbers for the TTR-125. In this case the bikes are 2000 & 2001 models. . even run and like a strong engine is like 130psi or so hope it helps and i hate how these engines are a normal size compression test fitting doesnt fitt its bull but oh well hope i helped alil or alot lol . Yamaha Motorcycles ; TTR . Test Ride: 2004 Yamaha YZ250. . result was a busy-feeling front end on faster straights.We quickened the rebound on the front a bit and stiffened the compression two clicks, and were happier at . KAYABA SSS SHOCK SETTINGS For hardcore racing, we ran this setup on the 2018 Yamaha YZ125 (stock clickers are in parentheses): Spring rate: 4.7 kg/mm Race sag: 100mm (105mm) Hi-compression: 1-1/2 . 2015: The YZ125 was upgraded to the “arrow” design plastic of the Yamaha four-strokes (and that included a new airbox). 2016: A gold chain, black rims and BNG were added in 2016. 2017: The .
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We understand both views. The fact remains, however, that riding the 2022 Yamaha YZ 125 is the most fun you can have on two wheels. You can’t possibly dislike the bike, no matter who you are and what you ride. Most things about the 2022 Yamaha YZ125 have changed, except the fact that it’s the best-handling dirt bike in the world.
Some believe that small-displacement bikes are dull, but if they took a ride aboard the 2003 Yamaha YZ125, they'd most likely change their minds in a matter of minutes. Built around a bulletproof . Test Ride: 2004 Yamaha YZ250F. By editorial staff. February 24, 2009. . Then we adjusted high-speed compression from 11/4 turns in to 1, running sag at the recommended 100mm. All our finessing .
Yamaha 2 Stroke ; YZ85 compression Facebook; Twitter; Youtube; Instagram; Pinterest; Newsletter; YZ85 compression. By 03rkjc, February 23, 2014 in Yamaha 2 Stroke. Share . Now we know you have compression but if your having issues with the bike you can have a air leak. A leak down tester will tell you that.
YZ125 Low Compression
Leak down test is irrelevant on a 2t because a compression test is going to give you a pretty good idea of the state of health of the rings. A leak down would only tell you if your head gasket is OK. Well I just purchased a compression test kit just for checking the top end at different meter hours. The 2005 Yamaha YZ125 frame was 4-1/2 pounds lighter than the 2004 steel frame. The bike weighed 197 pounds and got Honda-style brake routing and 7/8-inch Renthal aluminum bars for the first time.
YZ125 Compression test
Does any one know how many PSI the compression is supposed to be at on an 06 yz 125? I have a compression tester and need to know. Jump to content. Yamaha 2 Stroke; Activity. . The best way to know for sure is to do a comp. test on a fresh, broken in top end. . Yamaha 2 Stroke ; yz 125 compression? Theme . Light Mode (Default) Dark Mode . Being trustworthy, timeless & true to its purpose make the 2023 Yamaha YZ125 the Boy Scout of the 125 class. Studboy, I am holding the throttle wide open. The highest I can get it to register is 165. Maybe it has something to do with the "Harbor Freight" compression tester, and before anyone jumps me, I know I should have bought a reputable brand. The MAC Tools tester doesn't look to bad for the price. A: The 2005 YZ125 is the base for the 2017 YZ125. The 2005 engine was all new, sharing only the kickstarter and clutch plates with the 2004 engine. It was smaller, lighter and faster. Yamaha .
YZ 125 Compression?
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2004 yamaha yz125 compression test|YZ125 and YZ250 Compression Testing