A self propelled two wheeled motor vehicle with an engine larger than 50cc's.

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1
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2answers
137 views

Motorcycle Headlight Dies After Engine Start

I am having a weird problem with my headlamp on my 1983 Honda FT500. When I go out to start it in the morning, insert my key and turn it (engine still not started tho), the headlamp comes on as one ...
2
votes
2answers
114 views

Is there any protective sealant or bladder within a motorcycle tank?

I am learning metal work and will one day build my own motor cycle tank. Do these have any internal sealing or bladder?
3
votes
0answers
69 views

Problems with starting my Motorcycle [closed]

I have a Honda 2003 VTX 1300 S Retro that will not start without a jump. I just purchased a new battery on line (Chinese) for this type of bike charged it and still getting the same results as before. ...
3
votes
1answer
159 views

Big motorcycles at stop lights; why do they keep blipping the throttle?

We've all been near a big Harley at a stop light, where the rider keeps blipping the throttle. I've always wondered why they do this. Is it because those big pistons don't idle very well, and if you ...
3
votes
1answer
158 views

1995 Yamaha virago 535 Fuel pump problem

On my 1995 Yamaha virago 535, why does the fuel pump click 10 or so times before trying to start? I've replaced the fuel pump and fuel pump relay. It still has the clicking issue and will not start. ...
9
votes
5answers
895 views

How to become a self-taught amateur mechanic?

I'm a computer systems engineer (we did a lot of embedded systems and some electrical at university) and I own a Suzuki SV650S. I am considering doing several upgrades to it (e.g. replacing the front ...
1
vote
0answers
224 views

1982 Yamaha Virago 750 [closed]

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 ...
3
votes
2answers
1k views

How reliable is a Honda GB400 (motorcycle) grey import?

I am considering getting a 1985 Honda GB400TT bike as I simply love the look of them and they seem to be selling at a good price. I understand these are grey imports (imported 2nd hand from Japan) ...
6
votes
2answers
194 views

GSX-R front suspension technology timeline

I have noticed that people frequently choose the GSX-R front end for a front end conversion on old bikes to improve handling and comfort. The GSX-R was produced from 1985 through the present, and I'm ...
6
votes
3answers
226 views

Can a valve suddenly break in half? Versys 650 destroyed engine

this week-end, I had to disassemble an engine from a kawasaki versys 650 (early). The bike lost power while making ugly metal sounds. It never started again. RIP. context: 108.000km, mostly higway ...
3
votes
6answers
747 views

Why do they called motor bike instead of engine bike?

In Bikes, major part plays by 4 stroke petrol engine, then why did they named as motor bike or cycle instead of engine bike?
4
votes
2answers
529 views

What does “the bike dyno'd at 125BHP at the rear wheel” mean?

I'm in the process of buying an ebay bike (http://www.ebay.co.uk/itm/121337863485) which I won for maybe 60 - 75 % of its expected value. In the description the owner states that the bike dyno'd ...
3
votes
1answer
80 views

Requirements to use 55W Bi-xenon 6000k projector on yamaha r15 v 2.0

I have a problem with my vehicle headlights. Now I'm using a 35W 8000k projector for my bike. This is not having much light output as I wish. I'm really interested to see powerful light output from ...
7
votes
2answers
901 views

Motorcycle transmission occasionally pops out of gear

I'm having an issue where the transmission will occasionally downshift by itself during a fast acceleration. I have a 2005 Suzuki Vstrom 650 and it's been a great bike so far. At pretty high revs, ...
2
votes
0answers
46 views

2000 Kawasaki Vulcan Vulcan 800 Throttle Cuts at High Speeds (85mph+) [closed]

The bike starts fine but it coughs a lot when giving throttle in first gear. Runs great 2nd - 5th but when pushing around 85 mph or more the acceleration quits. The engine is still running but feels ...
10
votes
4answers
10k views

How to stiffen up a loose ball & socket joint for a motorcycle mirror?

I have bar-end mirrors on my Buell 1125CR. They're fairly heavy anodized aluminum pieces that pivot on a ball & socket joint for adjusting the angle of view. One of them fits snugly on the joint, ...
2
votes
1answer
717 views

What is the purpose of a smog block-off plate?

What exactly is the purpose of a smog block-off plate? What does it 'block-off'? How is it installed? And what are the benefits/detriments of installing such plates? In my particular case, I ask, ...
6
votes
2answers
70 views

Rain tyres for motorcyles

I have recently started driving a motorcycle to work (60 km/day). I have a Honda XR125L. Today I had an accident. I was driving at 10-20 mph and wanted to break for cars that were standing still. I ...
2
votes
1answer
79 views

GSF400 Bandit carburetor model or type,

I have Suzuki Bandit GSF400 model '92. May I know the type of carb do I have on it? I am trying to do some replacement on jets but I need sizes.
2
votes
1answer
582 views

2015 hawk 250cc enduro motorcycle

While riding down the street, our motorcycle just died. Tried to restart it and it sounded like it wasn't firing. We changed the plug and ignition coil and still not firing. What should we do now?
5
votes
1answer
68 views

What does an EXUP servo and subsequently EXUP eliminator plug actually do?

This question relates to my 2012 Yamaha R6. I removed the kickstand safety actuator because it was bugging me, I found it useless, and my habit is often to lift the kickstand when I start moving ...
5
votes
1answer
98 views

When should I perform a valve head adjustment?

My 2012 Yamaha R6 has about 12000 miles on it. During that times I've had a couple rough accidents and I think the combination of those two factors it may be a good idea to check my valve clearance ...
4
votes
1answer
1k 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 ...
2
votes
1answer
163 views

How to learn motorcycle maintenance theory

I'm a motorcycle novice and want to learn how to maintain a bike and fix problems that may arise. I've found a few great videos that have elucidated some basics: How a motorcycle engine works: ...
5
votes
2answers
307 views

Why do most mass-production motorcycles have their intakes facing backwards?

Almost every motorcycle I have seen has its air intake mounted such that it is sucking in air from the direction opposing travel. According to fluid dynamics, if the intake is made to face forwards, ...
1
vote
1answer
257 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 ...
2
votes
1answer
74 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.
4
votes
2answers
569 views

Parking a motorcycle with hot engine

I have a question regarding my motorcycle (Yamaha FZ8 - 4Zylinder 800cc). At the weeksend I was driving through a town. It was very hot outside and I parked the bike. The coolingwater-temperature was ...
5
votes
2answers
565 views

Reboring a cylinder: compression ratio of new piston

I'm going to have the cylinder of my 2004 TT600RE motorcycle rebored (because it's damaged, not to increase power). The manual says the piston size is 95mm and the compression ratio is 8.5 : 1. I'm ...
3
votes
0answers
46 views

Help identify round diodes - need a replacements [closed]

Few diodes died in three phase rectifier circuit on a motorbike. I can't find any suitable replacement online since I can't understand what kind of packaging is it. They round like a round pill. 7mm ...
4
votes
2answers
393 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 ...
14
votes
5answers
65k 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 ;) ...
1
vote
0answers
46 views

Motorbike Lack of power/speed [closed]

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 ...
3
votes
1answer
983 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 ...
3
votes
2answers
343 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
277 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 ...
3
votes
1answer
30 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 ...
2
votes
0answers
103 views

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

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?
1
vote
2answers
187 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 ...
3
votes
2answers
226 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
2answers
125 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 ...
5
votes
2answers
449 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 ...
2
votes
1answer
237 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
179 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 ...
3
votes
1answer
1k 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
194 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. ...
3
votes
1answer
46 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
113 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 ...
2
votes
2answers
107 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 ...
-1
votes
2answers
25 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 ...