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

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8
votes
1answer
63 views

Suzuki 2004 sv650s wiring

I got a 2004 sv650s Suzuki when I turn the key on the fuel pump does not come on and the CHECK light comes on on the dash. All the lights come on and the starter button does not work.All the fuses are ...
10
votes
2answers
110 views

1982 Yamaha Virago - Several things are wrong and i'd like to repair myself

Several things have happened in the past couple days and I would like to know what could possibly be wrong before I take it all apart. Engine dies after letting off the throttle while on the road. ...
7
votes
1answer
31 views

1973 CB350-four, no spark on 1 and 4 when it's cold

When this bike is cold the 1st and 4th cylinders do not fire. Pulling the plugs and checking them, there is not spark. If you get the bike hot, it runs really bad on the way there, 1 and 4 come ...
12
votes
1answer
94 views

What is cold tire shearing?

I have friends that goto Track Days frequently on their motorcycles. If the first session is very cold they use their old tires and don't ride real hard because they don't want to shear their good ...
7
votes
2answers
68 views

Honda R8X-S heat seize

I've got a Honda R8X that heat seizes when I'm riding it when it goes over 40mph. The lad I got it off said he had it re-bored and that it was run in. Will I need to re-bore this again or is there ...
11
votes
1answer
118 views

How does one use a chain press to remove a motorcycle chain?

I recently found out about this tool from this answer. I'm interested in understanding the steps involved in using this tool to remove/install motorcycle chains. Also, would it be possible to use ...
4
votes
1answer
93 views

Why do old motorcycle engines rev so slowly?

I know someone with an older Yamaha XS750. It's from the late 1970's. When I rev the engine in neutral it rev's up really slow. It comes down from the revving a slowly as well. When I rev a 2005 ...
5
votes
1answer
43 views

Lacing spoked motorcycle rims

I have a friend that is rebuilding an old Triumph. He is getting ready to lace his rims and has all the parts ready to go. He has never done it before and lacks knowledge. We have watched a few ...
3
votes
1answer
102 views

Top speed of my Bajaj Pulsar 135 is decreased after changing Clutch plate

I would like to know if my clutch plate can be the reason that my top speed is now lower. Top speed of my bike is 115. I drove my bike after the clutch plate replacement and the top speed is now 90- ...
6
votes
1answer
75 views

Can I Mount auxiliary lights for Hero Honda Passion 2002 bike?

I am having a Hero Honda Passion 2002 model bike. The head light is very low and it works on engine power not on the battery, due to this riding bike in no light area with lots of ups and downs are ...
6
votes
1answer
65 views

2009 Aprilia RSV1000 - Piggy Back ECU, Should I get one?

I have an Aprilia Tuono, 2009. It seems to run lean after putting an Akrapovic exhaust on it. It makes exhaust popping sounds on deceleration. My boyfriend said I need a power commander on it to ...
5
votes
1answer
75 views

How do I pull error codes from my Kawasaki motorcycle?

I have an FI light on my Kawasaki motorcycle that is 2002 or newer. How do I get the error codes so I can troubleshoot it?
8
votes
3answers
1k views

KTM Duke 390 - Does it have to be hot to ride?

I have a KTM Duke 390 - 2013, single cylinder 373 cc motorcycle for 4 months now. I bought it from another owner when it was around 9500 km. now It's at 12000. This is my first bike, and I'm trying to ...
3
votes
2answers
302 views

Who gets title if you sell a frame and an engine separately

I have a POS (Piece of S**t) salvage motorcycle I purchased cheap for a purpose which has now passed. I'm ready to get rid of it and there's a guy down the street that mentioned possibly wanting to ...
4
votes
2answers
84 views

Replace Yamaha FZ6 radiator for two smaller ones

I bought the engine of a Yamaha FZ6. I want to use it to run a competition single seater car we are builiding in the university. The engine didn't bring the radiator with it. I would like to ...
3
votes
5answers
133 views

1980s motorcycles and engine size: still good performance?

A buddy of mine is considering a fix it upper road bike for fun and to learn (prior dirt bike rider). I still go by the rule of thumb that 600cc is iffy for beginners but a lot of used 1980s bikes are ...
5
votes
1answer
92 views

Motorcycle Starting Issue - no longer starting after attempting to jump with a car battery

I tried jump start my bike with my car battery because the motorcycle battery was really low and would not start. I mistakenly touched both ends of the jump leads together and cause a big spark, ...
5
votes
2answers
349 views

Honda CB400 Super-Four - Power Issue

I have a Honda CB400 Super-Four. My bike starts and rides but I can't get more than 5000rpm out of her. If I do then she floods and cuts out. Two of her exhaust pipes are cold and two are warm. ...
3
votes
2answers
131 views

Honda Unicorn skids every time I use the rear brakes only

Honda Unicorn 160cc motorcycle skids every time I quickly hit the rear brakes. Even at slow speeds such as 10kph (about 6mph) Is there a problem with my riding style or could it be the bike? I have ...
3
votes
1answer
64 views

Does putting vehicle in neutral at slope cause clutch plate spoilage?

I am having a Hero Honda Passion 2002 model motorcycle. I have a doubt regarding clutch and Neutral functionality. I have observed that most of the time in our city the roads have ups and down so ...
5
votes
1answer
87 views

Motorcycle petcock leaking around bolts to tank

My petcock is leaking I originally thought it was internal do I took it apart inspected all the gaskets and seals and have it a good cleaning after reassembly it was still leaking and after a better ...
3
votes
3answers
128 views

While raising the accelerator suddenly my bike's speed goes down

While driving, I faced some problem in my bike. when I raise the accelerator suddenly my bike's speed goes down. Anyone knows what is the problem?. I'm using yamaha ss 125 cc bike.
3
votes
1answer
42 views

Motorcycle front brake's are weak

A few weeks ago I was in a motorcycle accident and my handlebar had bent and so had my old brake lever. A buddy of mine who's quite good with motorcycle's bent the bar back and changed the brake ...
7
votes
3answers
319 views

Single-cylinder engine - no camshaft position sensor?

I'm doing some research on the Honda CRF450. This is a single-cylinder engine. I'm interested in the fuel-injected models (not the older carbureted versions). As far as I can tell, this engine ...
2
votes
2answers
128 views

Replacing Spark Plug with Laser Iridium NGK Spark Plug

I have 2012 KTM Duke 125 at 10 000 miles (16k kilometers). I am the third owner of bike for 2 years. Whenever i twist the throttle fastly, motorcycle is chocked up. So i thought the problem could be ...
3
votes
1answer
55 views

How to remove front forks on motorcycle

I've got my motorcycle up in the air about to pull the frame up off the engine but I need to remove one last thing. I got everything taken apart except this center bolt holding the front forks on. ...
2
votes
2answers
43 views

Yamaha Virago XV125 registration year

I have a Yamaha Virago XV125 on a Y plate, this gives the year 2001, but the V5C says the date of first reg is 2000 and DVSA say that it's 2001, who do I trust for this?? (I'm sure Yamaha stopped ...
3
votes
0answers
39 views

Terminator 2 1990 Harley Davidson Fatboy FLSTF technical information [closed]

I am doing a project for class about the Harley Davidson Fatboy, and I need to find the values for the spring constant of the bike used in Terminator 2, and whether or not it used a custom suspension. ...
4
votes
1answer
409 views

Why are most motorcycles 5 speed than 6 speed?

I have a Honda Trigger motorcycle. I have seen most of the motorcycles even like Karizma ZMR having 5 gears. What would be the reason to have just 5 gears even for 223 cc motorcycles?
3
votes
1answer
52 views

Winter is here, what measures should be taken to protect a motorcycle?

After a mere two months of owning a motorcycle, it's already winter and I'd like to know how best to prepare for the inevitable ice/snow/cold. Other than basic cleaning and lubrication, are any other ...
2
votes
1answer
150 views

Engine oil reducing almost to half

I recently changed engine oil of my Apache rtr 160. I used otul 5100 15W50. Later I started experiencing vibrations, a lot of vibrations. I checked on the engine oil. The quantity is reduced to half. ...
3
votes
1answer
54 views

2000 Yamaha R1 Quick Action Throttle

I've 2000 Yamaha R1 that I'm racing in my local Clubman's Championship. At the moment the throttle travel is very long, ie. half a turn or more from fully closed to fully open. I want to change this ...
3
votes
1answer
98 views

Suzuki vl 250 wont start

I have a Suzuki vl250. It's been running great until last weekend I rode it home from work turned it off and the Mrs decided she wanted to go for a ride only problem is bike wont start! Since then I ...
4
votes
2answers
278 views

Is there a key code with my Kawasaki

I hear that there is a key code for my 2006 Kawasaki Vulcan 900 LT that can be given to a dealer who can then cut a new key for my bike if ever necessary. Now it is. But where do I find the key code?? ...
5
votes
3answers
247 views

Hyosung GT250R Leaking petrol

Motorcyle 2006 Hyosung GT250R Syptoms Leaking lots of petrol when engine is on Info Hasn't been ridden in about 10 months. Has been stored outside with cover, leaning on it's stand. I've ...
3
votes
0answers
70 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. ...
1
vote
1answer
96 views

How to check spark plugs on a Yamaha R6

I was hit a few weeks ago and have been trying to get my motorcycle fixed ever since. 2012 Yamaha R6. I replaced the tank among other things and trying to start it it sounds like it's sucking air. ...
3
votes
1answer
166 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 ...
2
votes
2answers
124 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
1answer
200 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
938 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 ...
2
votes
0answers
36 views

Fresh battery, no lights on 1979 Honda CB125 [closed]

I have a 1979 Honda CB125 that was running consistently about 2 years ago. It then sat for two years and the battery was corroded so I replaced it. I've made sure the battery is charged (I have a ...
2
votes
1answer
73 views

Tuning an ancient carbureted Honda motorcycle

I was in an accident recently. Tboned by a minivan at an intersection. Totaled my nice bike. My buddy gave me an old rust bucket he had laying around just to get me to work for a few weeks until I ...
1
vote
2answers
160 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 ...
6
votes
3answers
374 views

Kawasaki EX650 - What causes a stator to burn out?

My motorcycle recently required a new stator (plus a new regulator rectifier and battery) because the stator burnt out and fried everything. What are the typical causes of a burnt-out stator? Does ...
6
votes
3answers
253 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
816 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?
3
votes
1answer
82 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 ...
5
votes
0answers
63 views

2011 Hyosung GT250R - Stalls and Stutters at Lights [closed]

I have owned a 2011 EFI Hyosung GT250R for about a month. I haven't had any problems. Today, I was riding in 2nd gear and I shifted down to 1st to make a quick stop, and once stopped the idle speed ...
4
votes
2answers
77 views

Engine rev in motorcycle

I somewhere read that for a good launch we should hold engine revs at peak torque, not peak horsepower. What does "hold engine revs at peak torque, not peak horsepower" means? How can I hold engine ...