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8
votes
6answers
31k views

What does the 'cc' mean on a motorcycle?

I'm relatively new to motorcycles, my flat mate taught me how to drive his two Royal Enfields around New Delhi, and for the past year and a half I've been taking care of them as they break down ;) ...
3
votes
0answers
29 views

Why is this motorcycle burning oil, and how can I get it to stop?

I have a newbie question for you. I'm considering buying a 2004 Yamaha TTR600RE- a single-cylinder, air-cooled dirt-focused dual-sport bike. It's perfectly set up for adventure touring, which is what ...
3
votes
1answer
86 views

Engine on BMW G650GS 2011 does not start when it's hot

I have a rather strange problem with my BMW G650GS. In the morning, when the engine is cold, it starts fine with a single crank. There is no problem with riding, the engine works fine and never ...
0
votes
0answers
17 views

Motorbike Lack of power/speed

I bought an ajs dd125e-8 it was delivered on Monday and I had no problems until yesterday on my way home from work. I got half way home and the bike just started to slow down and no matter how much ...
2
votes
1answer
423 views

Using an open vs closed clutch cover on a motorcycle with a dry clutch

A common modification I've seen on motorcycles with a dry clutch is to replace the closed clutch cover with an open one. Besides the visual and auditory differences, will I notice anything else ...
4
votes
0answers
45 views

Honda XR650l first ride after winterization

Before winter I had the oil changed, filled the gas tank and added the recommended amount of Sta-bil fuel stabilizer. Then rode around for about ten minutes then switched the petcock to off and ran ...
3
votes
1answer
139 views

Semi synthetic oil engine break-in

I've finished rebuilding the engine of my motorcycle (4 stroke 650cc single-cylinder). For now it runned only once varying between 1000 and 2000 RPM for 5 minutes with a couple of short bursts after ...
1
vote
3answers
187 views

What is choppy throttle response and bad fuel mapping and can it be fixed?

I'm looking to purchase a motorcycle and according to it's wikipedia article it has two major flaws: Being the company's first fuel-injected 600cc sportbike, the initial 2000 model had choppy ...
4
votes
1answer
241 views

What is this part and how do I remove it?

I am trying to replace my motorbike clutch friction plates, but cannot remove the basket around the plates ( I think that's what people mean when the say 'basket' - the cover over the plates that ...
2
votes
1answer
18 views

Do I have to change the chaincase lubricant when adjusting the clutch during routine maintenance? 2015 HD Road King

I am completely new to motorcycle maintenance, but need to adjust my clutch. I have watched a demonstration video for a similar model (I think) - but couldn't find an exact match. Since I will be ...
1
vote
1answer
74 views

A Suzuki GZ125 marauder that won't power on at all

I've been having a problem with my bike. I went to go to work in the morning and it turned on ok. Left to run for a few minutes then cut out. It turned over again and same thing ... I tried a third ...
1
vote
0answers
19 views

What is Zongshen ZS125ST Carburetor 24mm KF Standard of Japan compatible with?

I have a carburetor "KF Standard of Japan" apparently Zongshen ZS125ST Carburetor 24mm KF Standard of Japan. What other makes/models is it compatible with?
4
votes
3answers
5k views

2001 Suzuki Katana 600 motorcycle won't start

A few months ago I bought a used 2001 Suzuki Katana 600 with about 11,000 miles on it. I rode it without any issues for the first month or so. After that I started having occasional issues with ...
0
votes
0answers
26 views

Is there a source assessing repairability of motorbikes and cars?

For phones you can find ratings based on ease and cost of repairability (assuming you do everything yourself). Is there such a source for choosing a motorbike or car that you want to maintain yourself ...
0
votes
2answers
103 views

Can someone identify this part of the engine on a TVS Apache

I tried looking up everywhere, and this is unique to this bike. Can someone identify the below component. Looks like a pipe connecting the engine with starter motor. Close up of the engine , both ...
4
votes
1answer
230 views

Clutchless Downshifts Using Throttle Blip on a Motorbike/Sequential Gearbox

This is with respect to non synchromesh, sequential transmission. Ducati along with several after market systems, implement clutchless downshifts by automatically applying a slight throttle to unload ...
2
votes
2answers
49 views

Why does my front wheel rotor is heating up more than rear one?

I had been facing high fuel consumption lately. To my surprise I discovered that my front wheel free rotation seems bit restrictive to my rear one even when rear wheel drags chain and two sprockets ...
2
votes
1answer
23 views

Mounting bar end mirrors on non-hollow bars?

I bought a CRG hindsight bar end mirror but the CRG adapters and all the adapters I find online seem to be for hollow bars. But the bars on my 12 Yamaha R6 just have a threaded hole for a bolt.
7
votes
3answers
260 views

What are the Advantages of a Single Side SwingArm on Motorcycles?

I have noticed that Ducatis , Honda and Triumph have bikes with a Single Sided SwingArm Much like most of the scooters. Are there any advantages of following this design , if so why are not all ...
2
votes
2answers
92 views

How come I can put in more gas in the tank than possible?

I have a Honda Varadero 2010. When I fill her up to max, the level of the liquid in the tank is at maximum, just a tiny bit below the rim of the nozzle. Then, I poor in some more and the level raises ...
0
votes
2answers
301 views

Headlight problem in my honda 125cc bike

I'm having a headlight problem on my Honda 125cc bike. My problem is that I don't have a battery on my bike and every time I connect a bulb, it blows up within 5 mins. As of this moment I can't afford ...
4
votes
2answers
67 views

How to clean engine when oil is contaminated with metal shards?

During a recent oil change Istripped the oil pan bolt. It took a bit of trial and error for me to realize the stripped hole was a 14mm 1.25 thread so I got a tap and rethread it to 14mm 1.5 thread ...
0
votes
0answers
24 views

Coolster dirt bike wont start

My 125 Coolster dirt bike has no spark. Replaced coil, CDI box ,and stator. Checked kill switch with ohm meter. Wiring seems good.
1
vote
1answer
247 views

Engine oil leak from motorcycle

I'm having this peculiar problem. There is an engine oil leak from my 160 cc motorcycle. The thing is that, I got the engine oil changed couple of days back, by a nearby mechanic. Now the problem is ...
1
vote
1answer
154 views

1982 Yamaha Virago 750

I am considering buying a 1982 Yamaha Virago 750 that I found on craigslist. I have read online that many of these bikes have starter problems and I am just curious as to how hard it is to fix or ...
4
votes
0answers
40 views

2007 Hyosung GT250R not starting, some repairs have been made

Hoping to find some good advice on fixing my (above mentioned) motorcycle. I'll try to keep it brief but with as much details as I can. I had an issue with the bike and it sucked up some varnish from ...
4
votes
3answers
38k views

Symptoms of Lean or Rich carb settings on a motorcycle

I have a 1981 Yamaha XS650. I recently put in K&N stock replacement filter (ie, they are in the airbox and conform to the size of the original), however they may be leading to a leaner mixture ...
2
votes
1answer
62 views

Oil all over outside of engine

I have a 1988 yamaha route 66....I put some oil in, it has a slow leak by kickstand...I took it for a 5 mile ride last night. Afterwards I found it sitting in oil, and the outter engine /side was ...
5
votes
2answers
92 views

Kawasaki H2R flames come out of exhaust system

Kawasaki recently launched the H2R motorcible. The world’s only supercharged production hypersport streetbike. This bike has 326 bhp. I saw few videos of this incredible bike. My question is about ...
2
votes
1answer
400 views

How to determine what carburetors will be compatible with a motorcycle?

What are the parameters to determine whether or not motorcycle carbs are compatible with a certain engine? Is it just the size? For example, I have a 1978 Suzuki GS1000 with Mikuni carbs, and it's ...
-1
votes
2answers
62 views

AJS Regal Raptor cranks but won't run

I have a AJS Regal Raptor DD125E. When I push the starter switch the engine spins but no spark at the plugs. However as I release the starter switch I get a spark from the plugs on the engine overrun. ...
6
votes
1answer
221 views

Idling issues on 1995 Kawasaki ZZR600

The bike was running rough and could not get a constant idle speed. I checked the air filter and it was pretty well shot (contamination, etc.). As I awaited delivery of the new air filter, as a test I ...
0
votes
0answers
33 views

1987 Yamaha fz700 handlebar lock

On my ignition there are a couple positions, on, off, lock, and p. I assumed the lock was for the handle bar lock, but it doesn't lock when I switch it to that, when I switch it to P though it ...
4
votes
1answer
47 views

How to find the cause of sudden high fuel consumption of a motorbike?

About my bike Model: Honda CBR 250R Total Run: 35000kms Total Time: 2 years 3 months Clutch Plate changed at 30k kms after an accident Engine oil, engine oil filter and air filter changed in ...
0
votes
1answer
21 views

2005 Suzuki Katana stalls when put in gear

I have reworked all the carborators on the motorcycle. All seemed well but once it was put in gear, it stalled. What do I need to look for?
-1
votes
1answer
50 views

Suggestions for replacing/upgrading exhaust/silencer for a 125cc Motorbike [closed]

I have a 125cc Yamaha Gladiator SS125, which is about 3 years old. I had my stock air filter (paper-based) removed and installed a K&N conical filter about a year ago. I wanted to know if anyone ...
0
votes
0answers
55 views

Why my bike shows petrol missing before 2000 RPM in all gears?

I am using Hero Karizma R (225cc, 5 gears). Recently I feel a missing in all gear befor 2000 RPM. Sometimes my bike turn off due to this missing. Usually it happens at 1st/2nd gears. After 2000 RPM ...
1
vote
0answers
36 views

What causes an engine idle to increase briefly?

I have an old twin cylinder motorcycle that I'm rebuilding and I need to tune/balance the carbs. I have them bench-balanced and reset the idle screw on both. Now it runs a lot better, but every 10-15 ...
1
vote
2answers
57 views

Find the version of a motorcycle

I need to know the exact version of my motorcycle, I can't find this information on the frame nor the user manual. It's a Kawasaki ER-5 sold in October 2005 in France. I want to replace the fork oil ...
13
votes
4answers
3k views

What is the technical reason the engineer decided the motorcycle gear pattern as follows?

The gear pattern is selected by clicking a lever with your left foot, and is typically laid out as follows: 6th gear (if applicable) 5th gear 4th gear 3rd gear 2nd gear NEUTRAL 1st gear What ...
4
votes
4answers
2k views

How to add hybrid technology to a 4-stroke engine motorcycle?

I am enthusiast of automobile, and especially of motorcycles. I don’t know much about engines practically, but I read a lot. I was reading an article at How Stuff Works about the hybrid technology ...
-1
votes
2answers
19 views

Bikes power is iffy [closed]

Hi I have a 03 katana and for some reason the bike won't power on anymore...I turn the key and nothing no lights nothing. I'm not sure if it's the battery or what. What should I do to trouble shoot ...
1
vote
2answers
2k views

Should motorcyle exhaust headers ever glow red hot

I've got a '99 Pegaso 650 which hasn't been running for about 7 years. It's was in a quite a deteriorated state when I got it, i.e. seized carbs, tank full of water, sump full of an ugly fuel/oil mix, ...
2
votes
0answers
36 views

Rear wheel wobble

I recently took my '12 Yamaha R6 completely apart when I repainted it. When I put it back together I didn't realize but I'd forgotten a washer on the swingarm axle which was causing some movement of ...
1
vote
0answers
13 views

BDL primary driver inner plate install

I am for the first time ever, in the process of installing a replacement Ultima 6 speed transmission with the same make and model on my 1994 Harley Davidson softail custom trike conversion. It has a ...
2
votes
1answer
577 views

Motorcycle heats up within minutes of driving in the traffic

Ice cold engine of my KTM Duke 200 heats up and shoots the highest temperature and the gauge reaches the extreme within like 15-30 minutes of driving it in traffic. And the engine stops and doesn't ...
2
votes
2answers
897 views

Larger cylinder volume, but less power, how?

KTM Duke 200 which has an engine of 200 cc, and, on the other hand, Royal Enfield Bullet 350 with a 345 cc engine. I.e. Enfield has 150 cc more than the Duke. But KTM produces 25 BHP of power, whereas ...
2
votes
1answer
58 views

Car and bike. How to keep it in good condition when unused for two months?

I've seen this post, this one and this one. But what about a bike like a Hero Honda Splendor+? Apart from keeping the fuel petcock off, what else should be done to ensure that the bike runs fine after ...
2
votes
2answers
74 views

Why is martensitic steel used instead of grey cast iron for ATV disc brakes?

Grey cast iron has better thermal properties -- conductivity and specific heat -- lower density, better castability, and better friction than martensitic stainless steel. Why are OEM parts made of ...
4
votes
3answers
17k views

Start Motorcycle Garaged for Over a Year

What do I need to do to get my motorcycle running again after I've left it in my garage for over a year?