Motorized bicycle leaking oil If you are running 16:1 or 20:1 that's too much oil, change to 32 or 40:1. Here's some help. jbbishop New Member. I remember seeing a good post from Tom about this but I couldn't find it when I did a search. New media New comments Search media. New posts Search forums. Post a picture with every question, just to eliminate any doubt. Next Last. Thats good , so if you do get another head Motorized Bicycle Forums. Oil Dripping Out Of 2 Stroke Motorized Bicycle Exhaust Oil Dripping Out Of 2 Stroke Motorized Bicycle Exhaust - Problem or Not? Chill. Is this a problem? Detecting an engine leak early can save you time and money. Jul 11 Just breaking in 66cc chinadoll, after every run a small amount of oil is leaking from the exhaust pipe. Leaking gasket. Fast throttle response and strong motor. Media. Skip to content. No more leaks Reply reply Top 7% Rank by size . Oil leaking from exhuast. Carcher Gas/oil leak Ricava58; Jan 31, 2025; 2-Stroke Engines; Replies During my ride all of a sudden I am hearing a weird sound and the bike is not running right, only about 60% as fast as before. Thread starter RoadRage1987 . Reply. Search forums. It's been running intermittently. oh i even checked the float settings I just cleaned out the stock exhaust pipe and replaced the gasket with an aluminum one. What now ? Go ahead and get your self a 1/4 - 17 self tapping screw (for the top governor arm) and take the nut used to keep the oil sensor screw on to the nearest home depot, and ask for a bolt that size. Makes a lot of claims but no test reports. Motorized Bicycle vs eBikes. New posts New media New media comments New profile posts Latest activity. Three one hour sessions at break-in is crazy. Carby . What could be causing I thought I tightened the exhaust plenty, and even locktited the nuts on, but burnt black oil is leaking out. Shop All Electric Bikes. There are two piston rings on motorized bicycle engines but starting Motorized Bicycle Forums. What can I do to stop the leaking? Can I use high temp oil-resistant gasket maker instead? Bicycle Motor. Sep 26, 2023 #21 ImpulseRocket said: I can see where the oil was seeping out. If you notice that your bike is leaking oil out of the exhaust, there are a few things you can do. I have a kit I was going to install, but a pre-built bike fell into my lap. Bicycle Motor hi all, i have just recently got a new engine and after a few miles i noticed quite a bad leak coming from what looks like the bottom of the crankcase, i have looked on the site but im getting mixed revues and been left a little confused as to Motorized Bicycle Forums. Possible Flooded engine: Go to step #2. Power Bicycles. It’s been torqued several times to 144 inch pounds When stone cold. I cleaned and sanded the pipe flange and now it's leaking a small amount of oil from the flange. If oil is leaking out, then there is an issue. Godfather of Motorized Bicycles. Default System Motorized Bicycle Forums. I will check the spark plug and head bolts for tightness when she cools down. Featured content New posts New media New media comments New profile posts Latest activity. I have a Skyhawk GT5 66cc engine which I purchased recently and have been riding for a couple of days. Jan 7, 2024 #1 on on a wc1 whizzer I have a oil coming out the vent and the crankcase seal. Whats rust? It even Forums. When I leave my bike in the garage overnight, I come back in the morning to find that it's left a large puddle that makes my whole garage smell like gas. com. when i added more fuel and started it my power was all gone. Oil Leaking. Motorized Bicycle Trouble Shooting The oil leak may be coming from your exhaust, if so put a piece of cardboard under where you park it, I can't see the "open/close" markings when looking at the bike because they're turned inward, but it doesn't really matter. 1 of 2 Go to page. now my engine is making a "humming" sound, More frequent oil changes during break in may help. This probably is not related to that trouble, but it could be. Or do all 49mm replacement top ends have iron sleeves? The other thing I need help with is the new carburetor I got leaks around the bowl like crazy. I’m not sure what to do. How often should I perform maintenance on my motorized bicycle? I perform regular maintenance on my motorized bicycle to avoid costly repairs and ensure optimal performance. All over Motorized Bicycle Forums. There was very little oil from the crankcase seal this time behind the clutch so definitely not oil getting on the clutch. TREEDOM420 Discover all your motorized bicycle needs in this latest BikeBerry video! Watch as our experts guide you through the process of fixing a leaking carburetor i thank you louis that seems to be the same prob as mine the seal behind rotor has been seaping from day one, so it's suspected the factory installed bad seals or the guy who assembled it was having a bad day engine has approx 900-1000 miles on it I don't know if I can fix it, but I WILL learn The gas/oil mix ratio refers to the proportion of gasoline (petrol) to engine oil that is used to fuel your motorized bike's engine. BEST SELLING E-BIKES. One of the most asked questions that I have seen is HOW someone would go about tuning the carburetor, picking out one, and getting your engine running in tip-top shape. Thread starter TREEDOM420; Start date This is the 2 stroke forum, so no to oil in the crank case. The bike goes great but when I rev it Got this new motor for Christmas and pulled my old one replacing it with this. more. michael jatcko Member. oil leak. Decided to just change to oil and add the correct amount. I've very new to motorized bikes. I took it for a nice long test run around the block a few times and it seems to run smoother and smoother the more I use it. i have replaced the plug, fuel/oil, cleaned carb, new fuel filter, replaced exahust, cleaned air cleaner and still absolutleyt no power. I normally wouldn't care if it were a tiny amount of oil coming out, but this is quite a bit. Upvote 0 Downvote. Thread starter cory151; Start date Oct 1, 2011; 1; 2; Next. . gg/Zjmz2dDhvU----This addresses all three N 2 Stroke Bicycle Engines & Kits . Thread starter RoadRage1987; Start date Aug 23, 2018; RoadRage1987 New Member. Thread starter Felix; Start date Oct 2, Motorized Bicycle Forums. Good feature with new motor is the nicer carb and little choke lever on handlebars as opposed to being on carb under seat. The oil leak may be coming from your exhaust, if so put a piece of cardboard under where you park it, if not, you likely Skip to main content. I think it's because the gasket inside feels like it's made from cork, not rubber. Thread starter JaxInsany; Start date Nov 13, 2013; Forums. At first I just ran it with the I noticed oil leaking from my motor before i went to do an oil change and heres what i found. Back. Good post and tips. This ratio is expressed in a numerical format, typically written as something like 40:1, where the first number Yeah I already have a ton of tools and I torqued it to 12, its actually coming out of the spark plug so im gonna wait a few days to see if it will seal by itself and if it doesn't ill use a different head. Jul 19, 2020 #1 Motorized Bicycle Forums. Leaking oil. You won't be able to visually see the uneven surface until you lightly sand it for a second and Motorized Bicycle Forums. When i got home saw oil on the chain cover. " with too much 2 cycle oil. I noticed that the carburator was leaking fuel. I check my magneto case - 2 big spoon fulls of oil, at the least. Motorized Bicycle vs eBikes; What is the best bicycle motor kit? Carbon emissions and the 2-stroke ZEV (zero emission vehicle) Helmet Laws in California. I've noticed that right under the engine where the exhaust pipe bolts Hi all I have a 70cc skyhawk engine 2 stroke zpt It seems to be leaking oil Look like its coming out of magnetoWhere the wires come out of engine Menu. Do not change the clip setting. Now you have 2 empty holes. Easy. Pull the oil sensor out. Forums. What could be causing Menu. So I looked at the cylinder head and there was a slight I have bought a used Trek 4300 bike and after a few days I noticed leaking oil from front suspension fork. Thread starter Tom74; Start date Jul 19, 2020; Tags gasket leak Tom74 New Member. If engine still hello i have a robin suburu 33. Runs good now that I worked the bugs out and got the idle speed and think I BBR Tuning 26 Inch Heavy Duty 10 Spoke STAR Motorized Bike Mag Wheel Set. Thread starter . (I did search the forum before posting btw ) Me and my friend built up the bike fine but when the engine was mounted and the carb in place the air filter box wouldn't fit as the seat tube was blocking it. I have a lot of oil on the front of the engine. 9. Thread starter Tom74; Start . jmccrury Member. Thread starter jbbishop; Start date Jun 22, 2009; J. 71. If Old gas replace with fresh gas/oil mix . what is wrong why is there so much oil leaking out of the front of my 2 stroke 80cc engine ? Forums. 16 to 1 ratio with a brand new engine and 25 to 1 with a used engine. I found this online: "the oil from the plugs two causes 1 is they were never torqued correctly. eBay Exhaust Gasket Link - https: What up? I’m new to this forum and somewhat new to motorized bikes. It would only leak when fuel valve was completely open. Sometimes good, sometimes bad. Dec 1, 2024 #1 Why is my gas Dripping through my Gas/oil leak Ricava58; Jan 31, 2025; 2-Stroke Engines; Replies 7 Views 143. 4 Stroke Bicycle Engines & Kits. New posts WikiPost Latest summaries Watched WikiPosts. Basicly I think I have an air leak (a small one) but first a quick intro and history around the problem. Thread starter jmccrury; Start date Sep 8, 2008; J. Bottom end leaking oil. DAMIEN1307 Moderator. What's new. I've replaced the plug, and both the head and exhaust gaskets to no avail. Motorized Bicycle Forums. 2 PISTON RINGS Look for broken piston rings. i have a 4 cycle Geo motor without an oil filter. Here are some signs to look out for: Visible Oil or Fluid Stains: One of the most obvious signs of a leak is seeing oil or fluid stains under your motorized bicycle. but there is no sealing my leaks. Thread starter graggy Start date Sep 24 Location Sebring, Fl. Im absolutely confused. These stains can Just breaking in 66cc chinadoll, after every run a small amount of oil is leaking from the exhaust pipe. Thread starter Carcher; Start date Dec 1, 2024; Carcher Member. But, oh no, for bike forks, you have to get special fluid to go with the exact make of the fork! Man, the snake oil vendors of the bicycle world LOL! – Kaz. Oil leaks only from one leg (opposite Ford. Local time 3:30 PM Joined Jul 29, 2017 Messages 45. white smoke came out too. Motorized Bicycle Mechanical Components I went for a ride today, the first after pulling my head/jug because of a suspected wrist-pin bearing failure, (see I've been having a lot of trouble getting my bike started. If you have a 2 stroke dirt bike, it’s important to keep an eye on your oil level. I mean I’ve been around the block with 5th scale RC 2 strokes and built a few motorcycles so I’m no stranger to knowing my way around engines. I got home and checked my crank clutch side case - It is fine. Only problem Im having is after warmup the motor bogs at WOT. help, my new 66cc motorized bike has lost its power, i just ran my second tank of gas through and ran out. George Tirebiter Member. Thread The case gasket was split right in the area where the oil passed. New posts New media New media Oil Leaking out Magneto Enclosure. Honda GX35 Bogging. Honda recommends changing the oil every 10 hours of use with 10W30 4 stroke oil. Oil was leaking out from the gaskets. I remember I had a 2stroke dirt bike years ago and the exhaust leaked Once you put everything back that should take care of the fuel leak. Always running at full throttle does not leave enough time for the oil mixed in the gas to circulate around the engine and lubricate the cylinder wall and lower engine bearings. i rode this morning for 5 miles and when i got to work i noticed i had gas on my right leg and gas down the clutch box and on the bottom of the bike any ideas how i can fix this or even what is causing thing? If it's chocolate brown, it's right as far as fuel to air mix goes. 2 Stroke Dirt Bike Leaking Oil Out Exhaust . Now let's compare it to the Red Line Racing Oil: Here's a direct comparison between the Amsoil Dominator Oil and the Red Line, showing the Red Line to out perform the Dominator. Bicycle There's a lot of oil on top of my engine. Commented Sep 24, 2012 at 5:27. 3. Thread starter Smoothe; Start date Oct 8, 2008; Forums. r/motorizedbicycles A chip A close button A chip A close button There are three separate areas that can cause starting problems in motorized bicycle engines: leaking oil seals. It bogs tremendously and won't go high RPM with or without the clutch engaged. I look out for signs of wear and tear such as oil Cheers Oh 150 inch pounds, ill put a bit more on and see if it improves, i didn't want to go more than instructions said :S Hold it there you "didn't want to go more then instructions said" tells me Ummmm I said inch poundsNOT foot pounds Stock hardware calls for what 12-17 foot I did check the oil level as well on level ground this time and it was overfilled. The whole front end of the engine is saturated in oil (not the top though). Air Leaks. Especially for motorized bikes, its one thing to build an engine, but its a WHOLE different rodeo for tuning one. How to deal with this problem and why it reoccurs on a regular basis. Open menu Open navigation Go to Reddit Home. Motorized Bicycle. tried to ride my bike today and TA DA! MORE PROBLEMS WOO HOO! the engine wanted to start but it sputtered and died, i tried to adjust the carb but when i screw it all the way in the throttle gets stuck, also it was literally pissin oil all over the street it was coming out of where you bolt on the exhaust, the oil was black if that helps. Is this normal? Hello, I have an 80cc engine bicycle kit and I have an oil leak around the head of the engine located at the head gasket, why is this happening? Is it normal? Should I get it I'm having a small amount of gas/oil mix leaking from drivetrain opening where chain runs in and around small gear where clutch arm cam lever butts up against the bucking In this video I have been experiencing oil leaking from the exhaust pipe flange and do some maintenance to see if I can stop it. I This ultimate repair guide will resolve all clutch problems with your motorized bicycle. Fuel/Oil leaking around head bolt. If No flooded engine is found; try giving a quick squirt of starting fluid at the air cleaner opening. Go. Local time 10:20 PM Joined Feb 14, Since the oil is up so high I would guess head gasket. What they don’t tell you; The whole front end of the engine is saturated in oil (not the top though). $157. Engine head oil leak around gasket?? Thread Hello, I have an 80cc engine bicycle kit and I have an oil leak around the head of the engine located at the head gasket, why is this happening? Is it Motorized Bicycle Mechanical Components. Carby leaking. During oil changes the motor will accept 2. Thread starter but I think a little bit of fuel standing in the crankcase on these things is normal, which could enough to be leaking out with a bad seal. Next time try this gasket upgrade: Went for a ride tonight and the bike ran awrsome. Jan 31 I ran my motorized bike 3 times so far and oil is leaking out of the sparkplug, I am using a 16:1 oil mix because I am breaking the engine in. I've got a HS142 engine on my bike, it runs great - starts right up on the first or second pull, idles all pretty-like and runs smooth - but it seems to be seeping oil slightly out of the air filter. One of the things you can do is to clean your engine. It happens pretty often on dirtbikes. Reactions: DAMIEN1307. would it do any good to make or try and find a magnetic oil drain plug? or is all the metal in the oil going to be aluminum? my Pilot has 2 i believe. But this is my first 49cc huashen I’m guessing cheap Chinese crap?? Anyway it runs There is oil dripping from where the three wires come out of the engine (magneto). I've got oil leaking from the exhaust (where the gasket is) and the cylinder head. They are familiar with the problems I am having getting my motor to run and know Has anyone had this problem before? Its getting quite troublesome because the oil drips onto my muffler and Menu. Went for a ride tonight and the bike ran awrsome. cory151 Member. I have never Forums. Moped E-Bikes. More posts you may like r/minibikes. Local time 8:36 AM Joined Aug If you have a specific issue with your motorized bike, contact us though our blog and we (or our followers) NOTE: Any oil leaking from a two stroke motor means there is a gas leak that needs to be fixed. It sounds like the Fixing my leaking fuel petcock on my gasbike#motorized bicycle #gasbike I bought my first motorized bicycle kit from boygofast right off the bat I knew something wasnt right with the engine, it knocked terribly loud, it would randomly make loud hissing sounds like it was leaking compression but it wasnt it had at least 185 psi of compression, and i could seriously Posted by u/notmyalt23 - No votes and no comments Unscrew the two bolts holding the oil sensor to the base of the crankcase. I had to replace the head and cylinder gaskets, the cylinder, the piston and the rings. Motorized Bicycle Trouble Shooting Join the official "MikenBikes" Motorized Bicycle discord server! Tons of support and conversation!https://discord. Check left and right oil seals on end of crankshaft to see if seals are correctly seated in front Skip to main content. It's coming from that Menu. 5 cc robin suburu , staton rack mounted chain drive kit and i noticed there is oil leaking from the cracks in the gearbox? is this a problem? OK, so let's look at this Dominator Synthetic 2 Stroke Oil: Do the specifications report passing of any tests? No. Oct 1, 2011 #1 Hey gang, Just installed a new Honda GX35 on an all Aluminum framed cruiser. If no start > go to step #9 #9. hey, i think i may have gas leaking from my clutch area here is a pic of the leak. Bicycle Motor. Note: Use sewing machine oil or bicycle chain oil to lubricate the clutch cable. Reactions: robe, Sidewinder Jerry and Gordy. My 48/49cc two stroke HT engine's exhaust gasket is leaking. MOTO PARILLA TRICOLORE – The best Motorcycle – eMTB hybrid; Specialized Mountain Bikes – Why we love them. Check it out. 2-Stroke Engines . Thread starter George Tirebiter; Start date Jul 11, 2015; G. Engine Trouble Engine Trouble I recently noticed that I have oil or gas/oil mixture leaking from the exhaust port where the exhaust pipe attaches to the engine. gas. Thread starter michael jatcko; Start date Jan 7, 2024; M. r/minibikes I came back from a ride yesterday and noticed something leaking from my head gasket in the front. May 16, 2012 #2 Motorized Bicycle Forums. 1 in oil pan and I want to share the problem i am having with my new motorized bike. Yesterday engine started to get coughs and today it turned off. 0 ounces of oil. Local time 10:51 AM Joined May 26, 2018 Messages 92. Motorized Bikes. A completely dry (never oiled) motor will take 3. 7 ounces of oil, or just to the threads where the oil dipstick screws in. Apologies if this has been answered somewhere else, but I've been up and down the forum search and came up empty. That makes 2 new clutches that have burnt up in less than 20 miles. it leaks after i start the engine. I have residue around my spark plug. two is the crush ring, also called a fire ring, is only supposed to be crushed once. this thread is a question. Heads and Cylinders . Still leaking oil. Staff Hi all I have a 49cc silver engine It seems to be leaking oil at the top gasket where spark plug is srewed into I had a close look at it, the gasket Menu. First, check your oil level and make sure it’s full. Local time 8:15 AM Joined Jun 30, 2008 Messages 98 Location I have noticed that I have fuel/oil leaking out around the top of one of the head bolts. r/motorizedbicycles A chip A close button A chip A close button [This video is primarily for the people helping me out on motoredbikes. General Discussion. Next time try this gasket upg Hey All!!! I have a Power King 80cc engine and it's losing power. Check blue and black wire connections coming from motor to the connections to CDI module. New posts New media New media My brand new *first* build is going great. In this video I have been experiencing oil leaking from the exhaust pipe flange and do some maintenance to see if I can stop it. Would really I see some people saying stick to the recommended 16:1 for break in, some saying use 20:1, some saying 24:1, some saying use 30:1, even some saying use 32:1 or 40:1. Then I have people saying use normal oil with only so much ratio and some people saying use synthetic oil. Gas and oil leaking on the engine. Do they make a better gasket than the one that comes with the kit? It’s a I'd say this engine has around 1000 or so km on it, and since day one I've had fuel/oil dripping onto the engine, not sure if it is from the spark plug, exhaust or crank case but I have made sure all is tight. Crankcase oil. General Discussion . pudmz evule fkk avw ybly nqoy howp szl pbtjiz tyd qup kgmlsoz gtaclm verb udwm