yamaha xt500 compression test|1977 yamaha enduro xt500 : warehouse Hey all, I'm doing more work on my non-running 1980 XT500 and today checked the compression and got a surprisingly low number of 90psi. My friend drop GTA RP: quantas advertências um jogador pode tomar? O conjunto de regras para jogar GTA RP no Cidade Alta é um documento de 21 páginas, que rege todos os tipos de ação dentro do jogo.
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Have you checked the valve clearances? They might be a little tight. And like the other guy said the automatic comp. release might be the problem. When you open the throttle that allows more air to get pulled into the combustion chamber, giving you more mechanical . Hey all, I'm doing more work on my non-running 1980 XT500 and today checked the compression and got a surprisingly low number of 90psi. My friend drop
Intelligent gearing had reduced the amount of effort needed to kick the engine over, with a compression release fitted to the left handlebar. Even a newcomer could fire up the beast in two or . 1) Compression test. It should have ~120+ PSI. If you don't have a compression gauge, kick it over WITHOUT using the compression release. It should be hard to kick on compression stroke. If its hard to kick, you're OK. If it doesn't seem to have compression, check the adjustment of you compression release cable. 1976- (1979) YAMAHA XT500 XT 500 COMPRESSION TEST MOTOR AND PARTS FOR SALE ON EBAY. STEELESCYCLE1. 2.09K subscribers. I took it to a track last year and spent some time going up and down a field trying to tune the carb in. Ultimately the bike was just low on power but I did a 4 lap moto on it that day and it ran fine. I did a compression test on it later that day and found out I was really low.
The dirt bike comes to life – thanks to an air-cooled, 4-stroke SOHC engine with an 87 × 84 millimeters (3.42 × 3.31 inches) bore-stroke ratio, 9.0:1 compression ratio, and 2-valve-per-cylinder design also found in Yamaha . Yamaha XT500 TT500 Forum > Technical > Power Train > Compression release stopped working and running poorly . If you have a strobe, then easy enough, or alternatively do a static timing test (there is a really good post on that here somewhere). patuca. 797 220. Viking Member . Got it all apart and initially my thought is "it looks pretty . Yamaha XT500 TT500 Forum. Login; Join; HOME. Yamaha XT500 TT500 Forum. The International Home of The Yamaha XT500 TT500 & HL500 For Riders, Restorers Racers and Customisers. FORUMS. DISCUSSIONS. MESSAGES. . then kick her over hard maybe 10 times or so and try your compression test again. Whilst that plug is out you could even check .
Yamaha XT500 TT500 Forum > The Garage > Modified > Electric Start V2. Moderators: mudmantra . but was just too weak against compression sometimes and required 'fanning' of the de-comp lever. So the cam was .Cycle magazine test riders explored the dirt and road-going capabilities of the 1976 Yamaha XT500 for a favorable review that appeared in the May 1976 issue. . a 34mm Mikuni and compression was .Many people still put some real miles into their XT500’s and they have a big smile on their faces. The Yamaha XT500 is a twin-valve single-cylinder enduro-adventure motorcycle made by Yamaha from 1975 until 1989. It shares its power plant with the street version SR500 and its off-road brother, the Yamaha TT500. Hi thanks for adding me I'm looking for some help with my xt 500 I've just put new rings in and valves.and there's no compression I can kick it with m . Yamaha XT500 TT500 Forum. Login; Join; HOME. Yamaha XT500 TT500 Forum. The International Home of The Yamaha XT500 TT500 & HL500 For Riders, Restorers Racers and Customisers. FORUMS. .
The Yamaha XT500 is a twin-valve single-cylinder enduro-adventure motorcycle made by Yamaha from 1975 until 1989. It shares its power plant with the street version SR500 and its off-road brother, the Yamaha TT500. All parts such as the transmission and chassis were produced in Japan.. The first XT 500 was shown at the US dealer convention in September 1975, and in . The stock TT500 has the same 9:1 compression ratio as the XT500. I'd check you valve clearance and compression release. If your bikes starts and runs good, I'd also check for a faulty compression gauge. Plus remember to check compression with the throttle wide open. The XT500 engine makes some mechanical noise normally.
Yamaha XT500 TT500 Forum > Technical > Power Train > Compresion release not working? . Just so I could sleep at night, I went back downstairs and took the sparkplug out for a last test. Engine spins like usual without the plug. . (compression loss). Any ideas? I will tackle this again tonight. Thanks! yamahaha. 1,793 1,083. Viking Member . Yamaha XT500 TT500 Forum. Login; Join; HOME. Yamaha XT500 TT500 Forum. The International Home of The Yamaha XT500 TT500 & HL500 For Riders, Restorers Racers and Customisers. . The compression test must be done very accurately and only 5 cycles to build the compression on a cold engine. Any more then 5 cycles you are simply building . Opinions vary, especially within the biking world but just try and find a ‘Pre-Pensioner’ that has anything bad to say about the XT500 .now that is a legacy. Grant Ford for classic-motorbikes.net . Technical Spec Yamaha XT500C. Engine. Type: 4-stroke single-SOHC/30bhp @5800rpm; Displacement: 499cc; Bore & Stroke: 87 x 84mm; Compression 9.0-1 A very simple compression test is if you need the decompression lever to move past top dead centre on the firing stroke then you probably have sufficient compression. . Yamaha expected that an XT500 might wet-sump on rare occasions and they specify checking the oil after the bike has run a few minutes. They also advise that if you check the .
Yamaha XT500 TT500 Forum. Login; Join; HOME. Yamaha XT500 TT500 Forum. The International Home of The Yamaha XT500 TT500 & HL500 For Riders, Restorers Racers and Customisers. . After you do a compression test follow it up with w WET compression test and see what the results are comparing your exact numbers. Also make sure you do exactly .Written specifically for all you Do-It-Yourself enthusiast this manual is 192 pages ranging from your basic maintenance to a complete overhaul of the Yamaha XT500 and TT500. Save yourself time and frustration with these procedures and techniques used by professionals. I am trying to hook up the compression release on my 1980 XT 500. I dont have the stock parts, except for the cable holder on the valve cover and the . Yamaha XT500 TT500 Forum > Technical > Power Train > . The actuator barely touches, best way to test if it's working is to get it on compression and pull the lever to see if it releases the .
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Yamaha XT500 TT500 Forum. Login; Join; HOME. Yamaha XT500 TT500 Forum. The International Home of The Yamaha XT500 TT500 & HL500 For Riders, Restorers Racers and Customisers. FORUMS. DISCUSSIONS. MESSAGES. . You would need to do a dry compression test and then wet compare the results. Then do a leak down test.
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Pretty basic test. Don't judge a single by its compression. I recently retied as a mechanic after 42 years and have seen single cylinder Briggs & Stratton side valve (flat heads) run on compression so low, it hardly registered on my tester. It takes 3 things for an engine to run: Compression, spark (at the right time) and fuel/air.
Readings can be wrong or Tryed takeing a test before start of my motor I was geting 75psi HA Something aint right then was going to get back and do it but your thed here Mykul reminded me to try test again.You have to kick a few times with carb. open that is all it would go.The book reads 135-150 It must be good.New 9-1 first over :th- Specifications Yamaha XT500 Supermoto Phase 4. Engine air-cooled single cylinder four stroke SOHC Capacity 540cc Bore & stroke 90 x 83.5mm Compression Ratio 13 :1 Carburetion 38mm Mikuni VM Max Power 50bhp @ 7250rpm Torque 36ft-lb @ 5000rpm Ignition Power Dynamo digital, 16 programmable curves Transmission 5-speed, wet clutch, chain final .Yamaha XT 500. Make Model: Yamaha XT 500: Year: 1980: Engine: . Bore x Stroke: 87 х 84 mm: Cooling System: Air cooled: Compression Ratio: 9.0 :1: Induction: 32mm Mikuni VM32SS carburetor: Ignition . help in their bid to keep all bikers out of the Lake District National Park when Yamaha said they weren't having an XT500 on their test fleet .
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Yamaha XT500 TT500 Forum. Login; Join; HOME. Yamaha XT500 TT500 Forum. The International Home of The Yamaha XT500 TT500 & HL500 For Riders, Restorers Racers and Customisers. . On the compression test I recall getting 75 PSI and then Musky clued me in to the fact the throttle must also be wide open and 10 or so kicks. steelescycles ebay contact [email protected] or call us at 303-781-5339 or toll free at 1 888 781 5339 You may recall that I had the same problem late last year. I could find compression on one attempt to start it but then couldn't if I tried again (due to not starting). I had too many other things on the go at the time so I just left it on compression and parked it in the garage. I tried it a couple of months after and it started second kick! Yamaha XT500 TT500 Forum. Login; Join; HOME. . NGK BP7 ES is the XT 500 standard spark plug, but also BP8 ES (cooler than 7) can be used on XT. . Cooler spark plugs are used on engines with more power, more compression, more revs, etc. than original. Not knowing if your engine has "performance" parts (piston, camshaft, etc.), is hard to .
The cable at the head rotates a shaft that presses down on one of the exhaust valve buckets, holding it open, this reduces compression, which permit the engine to gain some momentum before the actuator snaps closed, full compression occurs and the engine fires. On the kick start side, it is a ratchet mechanism that pulls the cable, holds it about 75% of the .Yamaha XT500 TT500 Forum > Technical > Hydrocarbons > Trouble with a Mikuni VM38. Moderators: mudmantra, YamaHead, kevins, Tommy10bikes. Share. Share with: . On the smoking, I would do a compression test. If the bike has low compression it will make tuning a big carb even harder.
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yamaha xt500 compression test|1977 yamaha enduro xt500