Please specify the brand, model and year in your question.

learn more… | top users | synonyms

3
votes
2answers
673 views

How do I know if motorcycle chain & sprocket need replacement?

I'm aware of how important they are, but have been coming up empty in my searches to determine if they're worn to the point of needing replacement. The service manual just says to inspect and replace ...
2
votes
2answers
154 views

Ducati ST4s not starting

I ride a 2002 ST4s that was bought new in 2008 and has now travelled 8800km. I have fitted a power commander and carbon mufflers and done some minor alterations to the air box. Spent some time setting ...
2
votes
1answer
394 views

2 week old disk brake pads rubbing on rotor. Is this OK? (motorcycle)

I got the pads on the front brake of my bike replaced 2 weeks ago. Immediately I heard a rubbing noise at low speed. I thought this would be ok - that the pads just had to be worn in or something, but ...
1
vote
2answers
3k views

Why bikes with gears are preferred when there is gearless(or automatic gear) technology?

I know that lower gears have higher acceleration & low top speeds and higher gears have low acceleration & higher top speeds. But I would like to know why this gear system was designed first ...
2
votes
1answer
234 views

Why don't motorbikes have chain covers?

I notice that except for small commuter bikes and older bikes (before the 80s), hardly any of the larger and/or sportier bikes have covers to protect their chains: . They seem quite practical, and ...
3
votes
2answers
638 views

is motorcycle chain lubrication absolutely necessary?

Lubricating your chain is certainly one of the easiest maintainance tasks for a motorcycle owner, however I frequently wonder how necessary it really is. Are there any negative effects which can come ...
1
vote
3answers
226 views

Frequency for servicing bike?

I have a Hero Honda air cooled single cylinder 4 stroke engine bike. It's about 5 years old, and I've done all the recommended servicing on time. I lost the servicing manual, but I remember that the ...
3
votes
2answers
155 views

Going more than recommended Speed in Break-in Period

I have a new Yamaha motorbike. Seller told me not to ride speed more than 50 Kmph for first 1000KM but I rode it 60 for 10 - 15 minutes due to some reason. How does it affect to my Motorbike ?.
2
votes
0answers
56 views

Motorcycle tire shopping confusion

I'm having a hard time choosing a tire for my bike ('11 Yamaha FZ8n). The main source of my confusion are very similar markings on a multitude of tires that don't make a lot of sense to me. I was ...
2
votes
1answer
60 views

What is the right way to attach the Micarb to the engine head of my Enfield Bullet 500?

Before an upgrade to a new Hitchcock conical air filter, the carburetor was held in place by both the original (massive) air filter and the rubber manifold attached to the engine head, and it was ...
3
votes
2answers
271 views

How to remove all the fluid out of my motorcycle fuel tank?

I will be cleaning out my motorcycle tank using electrolysis. First, I have to remove all the gas from the tank, and then do the cleaning and then remove all the water that's left over, but I have a ...
0
votes
1answer
162 views

Motor cycle maintenance tutorials [closed]

I am searching for a tutorial about motor cycle maintenace. I tried in google search but not much of use: I get only blogs and website which give basic advice that - "go and consult a good mechanic". ...
6
votes
2answers
242 views

Change in exhaust note after extreme backfires--what did I break?

I had quite a morning with my 1986 BMW K75 this weekend. The plan was to ride the bike to a friends house to store it for the winter. The weather was pretty cold on this particular morning, perhaps ...
5
votes
3answers
216 views

What is the best practice to maintain a bike?

I have an Avenger 180cc bike, I want to maintain the bike without much help from the service center, external help etc. What would be the best practice methods?
12
votes
2answers
1k 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 ...
7
votes
3answers
2k views

What may happen if I do not replace my motorcycle's chain

I have a aging (y2k) motorcycle with not too many Ks on the clock. I have been told by a mechanic that I need to replace my sprockets and chain. This seems reasonable since the chain has been poorly ...
5
votes
2answers
261 views

Is it okay to run aviation fuel (100 low-lead) in a dirt bike?

I'm wondering if it will be okay to run 100 octane low-lead aviation fuel in my 2007 RM250 motocross bike (two-stroke). Half of the people I've asked say yes, while the other half say no. Will it be ...
4
votes
2answers
304 views

What's the proper method of replacing the crank shaft oil seal of a Honda Rebel?

I've been searching for a guide, but haven't found anything the deals with the oil seals specifically. My '09 Honda Rebel is leaking oil into the flywheel cover, and I suspect the flywheel and crank ...
8
votes
3answers
1k views

How do you get the carburetors out of a 1983 Kawasaki KZ1000 P?

It's a 4-cylinder engine, and the carbs are really wedged in there. The best way I know is to loosen the boots on both sides, pull the carbs back, and try to slip them out sideways, but what a pain! ...
4
votes
2answers
150 views

Proper fuel for motorcycles?

I've heard that regular petrol (92 octane ULP) from some fuel companies is not good for motorbikes as it is intended for cars only. Is this just an old wives tale?
4
votes
3answers
1k views

Motorcycle Leaking Fuel (1999 CBR600 F4)

Just fired up my motorcycle after 3 years in storage. Changed the oil and replaced the fuel in the tank. It starts easily. It is leaking fuel from somewhere under the gas tank. The engine has a ...
1
vote
2answers
118 views

How can I check if my motorcycle's suspension is working correctly?

How can I check if all of my motorcycle's suspension parts are working correctly, and carrying an even load?
2
votes
2answers
731 views

Weak front brake on dirt bike

After changing the air tube in my front tire and reinstalling the wheel on my Suzuki RMZ450, I noticed that the front brake lost a lot of stopping power. What caused this and what do I need to fix to ...
3
votes
1answer
179 views

How many kms is too many for a 400cc bike

I am looking at getting a Ducati Monster that is 400cc and 1996 but has done around 42,000kms. How many kms is to many before you will start to run into problems
9
votes
2answers
4k views

Why is my motorcycle losing power when accelerating?

I ride a Honda Rebel 250 motorcycle and over the past few days I find that the bike is losing power when accelerating fast. When I twist the throttle to accelerate quickly (in any gear) I hear the ...
2
votes
1answer
476 views

How do I clean/grease my dirt bike steering bearings?

My dirt bike's steering has become increasing harder to steer. Other dirt bikes I've ridden have much smoother, almost effortless, steering. How can I have that same smooth steering? What parts do I ...
0
votes
1answer
774 views

Top Speed varies even when using the same bike

I own a Hero Honda CBZXtreme bike. The top speed that I have reached is 122Km/Hr. But I am not able to reach this speed always. Sometimes the speed does not even cross 105 Km/Hr while travelling on ...
4
votes
1answer
345 views

Can't remove stuck rear dirt bike axle

I'm trying to remove the rear wheel on my 2007 Suzuki RMZ450. I've removed the axle bolt and tried banging the axle with a rubber mallet for about two weeks now. IT WON'T BUDGE. Not even a little bit. ...
1
vote
1answer
90 views

What is the bank sensor attached to on a Honda CBR1000RR 2012?

I am repairing a bike which had its front totally taken out. The instruments panel and headlights are gone. One of the first things I'd like to do is install a new bank sensor. I purchased the bank ...
2
votes
1answer
415 views

Looking for Tyres for Pulsar 150 bike with 180cc engine

I have a pulsar 150 bike modified with 180cc engine. I am looking for tyres(both from and rear). The tyre should have have good cornering capability and a very good grip. Till now I have. I looked at ...
2
votes
1answer
165 views

Squeal (vacuum leak?) and high idle after rebuilding carbs on '82 Yamaha XJ 750 Maxim

I've got an '82 Yamaha XJ 750 Maxim. I rebuilt the carburetors this weekend, and after putting it back together, it seems like it's got a vacuum leak. There's a loud squeal every time a cylinder ...
3
votes
1answer
299 views

How important are swing arm bushing pivot collars ? [ Honda CB400T Motorcycle ]

I've got a project motorcycle which is a bit of a frankenstein. It came to me with a Honda 400T engine but the compliance plate says it's a 1982 CB-250T, looking over the frame though the swing arm at ...
3
votes
1answer
65 views

Carbon Fouled Plugs '74 TX500

I'm somewhat new to wrenching my bikes and I'm loving it! :D I have a 74 Yamaha TX 500 that keeps carbon fouling her plugs :(. I've put on slightly hotter plugs (D7EA from D8EA), narrowed the jets ...
2
votes
1answer
140 views

Motorcycle: Irregular brake bite (front single disk)

My motorcycle's front brake is giving a irregular bite. I don't know how to express it in words pleas check the below illustration --------$^^^^^^^^-^-^-^-^-^^--^^^---^^^^^^----^^^| ~60Kmph ...
2
votes
1answer
153 views

What do I need to put rear shocks on my 1982 Yamaha Maxim XJ 750?

I bought the bike and didn't notice the previous owner had taken the rear shocks off (worst oversight I ever made, kicking myself now). I want to put some shocks on it, but I'm not really sure what I ...
2
votes
1answer
98 views

Suzuku Katana does not start after an accident

I have a Suzuki Katana GSX600F. So, after an accident I was in, I rode the bike home and all was fine except a little cosmetic damage, then in a rainstorm it tipped over and after picking it up and ...
3
votes
1answer
36 views

Buying a 1981 Kawasaki 440 D questions

There is a 1981 Kawasaki 440 D that is belt driven on Craigslist for $850 and I just have a few questions on about it being a belt drive. Is a belt drive ok to have? Is it worse than chain drive? And ...
1
vote
0answers
38 views

1995 gsx 750 won't start

I bought a katana 750 from a guy that had it sitting for a while. He said he rode the bike and it started but won't cut off, then the bike stopped firing and dosen't try to turn on - the lights come ...
2
votes
2answers
415 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
169 views

Damaged frame on my motorbike

My 10 year old Yamaha Super Tenere 750 has been off the road for a while as when I got it I learned it had had a bad crash which bent the frame. The rest all works, so I plan to take it to a garage to ...
2
votes
3answers
541 views

Honda Unicorn missing during rain and cold weather

I have a 2009 model Honda unicorn motorcycle. It's very difficult to ride during rain or cold weather, because of missing. I asked service center but they did not do anything. I have changed the CDI, ...
1
vote
1answer
364 views

How do you adjust the idle on a 1981 Suzuki GS 650 GL?

I'm asking this for a friend, so if you need more details, I'll have to ask him. He brought his bike with him when he moved, and with the elevation change, the idle isn't high enough. How can he ...
2
votes
1answer
298 views

What can cause gas to blow back into air filter in a motorcycle

I have a 1987 kawasaki ninja. I've had it for two years and it ran good until this year. When I started it this week, gas started to flow back into air filter box. Has anyone ever encountered this? ...
2
votes
0answers
105 views

Motorcycle: Fuel Injection light comes on after 5 mins of riding

I've bought a brand new bike and have had it for about 2 months. Later this week I noticed that after about 5 mins of riding the Fuel Injection light comes back on. I stop the bike, turn the ignition ...
1
vote
2answers
1k views

Exhaust Flame Kit

I have been searching over the past week or so trying to educate myself as much as possible before going ahead and trying to build an exhaust flame kit from scratch (the ones on sale on the internet ...
1
vote
1answer
869 views

Motorcycle Front Forks: Fork tube stuck in bottom pipe - clunking sound when trying to remove

I'm rebuilding the forks on my CB400 project bike [ turning into a street tracker ;) ] The process from the manual is pretty straight forward: 1) Remove the front fork bolts and drain oil 2) With ...
5
votes
2answers
838 views

Why won't my Honda Rebel shift when idling?

I recently ( and successfully ) rebuilt the engine of my '09 Honda Rebel; she's running well but doesn't want to change gears when idling. If I'm moving she shifts gears without any hanging, ...
2
votes
2answers
2k views

Should I grease an axle when I replace it on my motorcycle

I have a taken the front wheel out of my motorcycle to replace the tyre. When I put the axle back in is it a good idea to grease it? If so what type of grease should I use?
4
votes
3answers
2k views

Can a motorcycle's brake lever be bent back into shape?

I recently had a low speed spill on my bike leaving the brake lever rather bent. Can I bend it back (roughly) straight or it is likely to just break? Given that it is cast aluminium, I suspect is will ...
2
votes
2answers
157 views

What do these compression figures mean

This is a follow up question to What are the causes of fluctuating intake manifold vacuum I have a 2005 Honda CBR600 F4i which suffers from occasional hesitation at low rpm when accelerating. After ...