Questions tagged [motorcycle]

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

200 questions with no upvoted or accepted answers
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6
votes
2answers
292 views

What causes an engine idle to increase briefly?

I have an 82 Honda 450 Nighthawk 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 ...
5
votes
1answer
2k views

Honda Shadow Phantom VT750 2016 trouble starting

Having a little trouble here. My current Phantom is my 4th bike, and I drove it off the lot at 0 miles just a few months ago. The other morning (It was a cold morning relative to the surrounding days, ...
4
votes
0answers
129 views

Honda XL250R-C Carb ISSUES

I have a UK Honda XL250R-C 1982 pro link just purchased, I was told it had the wrong carb fitted which was a (PD70A) which is why it was running so bad, I was also given at the time of purchase a carb ...
3
votes
1answer
77 views

Battery charging issue

I've got a 2012 Yamaha WR450F motorcycle which has a 3 phase alternator with a regulator/rectifier. Currently the battery is not charging when the bike is running and testing the voltage when running ...
3
votes
0answers
250 views

honda cg125 why won't any of my lights work when the pilot light is connected

i'm stumped and hope that one of you guru types can help. my boy smashed the headlight on his cg125 in a low speed spill. i've fitted a complete headlight unit but gremlins have attacked. every light, ...
3
votes
0answers
289 views

2004 suzuki sv650s fuel pump does not prime or start

I've just purchased this bike as a non runner due to the alarm ( datatool system 3) I bypassed the alarm and it run like a dream. I then proceeded to remove the ararm by following all the wires and ...
3
votes
1answer
641 views

BS4 Royal Enfield Classic 350 stops all of a sudden as not enough fuel is coming out in On position. Even changed the petcock and cleaned the tank

Bike stops suddenly when in ON position. Removed the fuel line from petcock to carburetor and saw that not enough fuel is coming in ON position. Changed the petcock, cleaned the tank from inside, but ...
3
votes
0answers
1k views

Grinding sound comming from gear Box

I own a TVS Apache RTR. Recently I have started to hear grinding sounds from the gear box. When I showed it to a authorised service centre, says that it's due to the sprocket being damaged. But the ...
3
votes
0answers
5k views

Is my bike running rich or lean - I have both symptoms

Symptoms of Lean or Rich carb settings on a motorcycle I have a '71 Honda CB350 that is new to me. I recently rebuilt the carbs and replaced the petcock and had it running pretty good for awhile. I ...
2
votes
0answers
34 views

bad idling on my Kawasaki W800

Any help much appreciated, my w800 surges not all the time but sometimes on idle. It goes from 1300 revs down to almost stalling and then back up again but only occasionally, like when stopped at ...
2
votes
0answers
40 views

crankshaft rotation R6

I am performing a valve adjustment, I have been reading the yamaha r6 workshop manual, and it tells me to rotate the crankshaft counterclockwise, by doing this I hear gear sounds that I did not like, ...
2
votes
0answers
40 views

I have a 2001 gsxr 750 bogging down between 7000 and 9000 rpm but good before and after that?

I've got a 2001 GSXR 750 bogs down between 7 and 9000 RPM but anything before and after that it runs great... ive got new stator new injectors ,new coils and new fuel pump and filter. oh and new ...
2
votes
0answers
45 views

750 will not idle or run without choke fully on

1977 Honda 750 will only run with choke fully on, it will only idle at 3000rpm, idle setting does nothing. Carbs are clean and rebuilt. It will rev up but appears to be burning quite lean.
2
votes
2answers
780 views

'94 Kawasaki ZZR600: Electrical issues

first post here, be gentle :) I have an (presumeably) electrical issues with my '94 Kawasaki ZZR600 (ZX6). Two weeks ago, I was ready to go to work when suddenly the bike died on me, all electrical ...
2
votes
0answers
58 views

Motorcycle won't start

My bike (Honda Hornet 160R) has been resting idly for more than a week. It has both a kick-starter and an electric starter. When I tried to start my bike day a couple of days back, I found the kick-...
2
votes
0answers
257 views

Honda CBR150 Race Bike Engine Problems

I have a Honda CBR150 race bike with some engine problems. The bike struggles to start, think of the way a carburetor bike would struggle to start if it hasn't been run in a long time, but it does it ...
2
votes
0answers
70 views

Why would this happen:

If anybody could help me understand this behavior, I'd be grateful: 2003 R1 5PW, Fuel-injected, has an alarm/immobilizer fitted, doesn't report any fault codes: Motorcycle would occasionally (three ...
2
votes
0answers
191 views

Slipping clutch on my Yahama YZF600R 2002 34,000km

I just bought my Yamaha YZF600r about 2 months ago and at first I noticed first and sec were slipping and last night when I went for a ride I lost all power and had to pull over. Bike will start no ...
2
votes
0answers
49 views

Kawasaki EX400 2012 cold stalling

I got a efi motocycle that stalls when cold at stop lights. It only happens if 4-5k rpm was reached before pulling the clutch. When it doesn't stall I notice very low rpm. Cold starts are iffy. It ...
2
votes
0answers
24 views

1980 yahama idleing issue

I have a 1980 xs1100 yahama , the carbs were rebuilt and synced , so air gas mixture is good to ! But it runs fine when idle is a little higher by twisting the throttle ....but if I stop at a light ...
2
votes
0answers
1k views

Engine loses power at certain rpm once it gets hot

I have a Pulsar 220 which starts good but after riding few kms, engine starts getting too hot. Even the high temp and oil change sign starts blinking. There is no issue with engine oil. As I get it ...
2
votes
2answers
173 views

Honda innova 125 brake problem

Hi I have Honda innova 125 motorcycle and I was riding and the front brake locked and I crashed the person who helped me said this was due to lack of brake fluid, now the front brake doesn’t work at ...
2
votes
2answers
2k views

Motorcycle clutch with grinding sound

I have a Suzuki Gixxer 155 2015 model. After going to a shop for vulcanizing my rear tubeless tire, it felt like I was carrying a very heavy load. It was a very heavy traffic in my area so I used ...
2
votes
0answers
339 views

Sportbike Throttle Body Out of Sync

I recently purchased a 2017 R6. At around ~450 miles I had the 600 mile maintenance done early because I noticed my bike wasn't shifting as smoothly and the engine wasn't running as smoothly (running ...
2
votes
0answers
131 views

Suspected slow leak in carb, mileage low only when time taken to consume fuel

I have a weird mileage issue in my CB Honda Hornet motorcycle. This is a version specific to India, https://auto.ndtv.com/honda-bikes/cb-hornet-160r It has a 160cc engine. During the first 1000 Kms, ...
2
votes
0answers
1k views

honda cb400 super four speed/power issue

Firstly, I have checked a similarly titled post (Honda CB400 Super-Four - Power Issue) and their symptoms are different so it's not relevant to me. My bike is a '97 CB400SF, all stock except for ...
2
votes
4answers
4k views

Motorcycle: Annoying brake disc rubbing. Can't understand why

My bike is two months old. After about 1000 km's. I noticed rubbing on front disks. I think the left one making all sound. And the worse, this rubbing shaking handlebar after about 95 kmph and all ...
2
votes
0answers
49 views

Strange chain sound happened just once and now bike will occassionally come to a halt and wont move even in neutral for 15 minutes

I've been dealing with an issue for weeks now with my Boulevard M95 (2005). It's been keeping me off my bike and has been... well let me just describe it and maybe someone has some educated words for ...
2
votes
0answers
1k views

Convert kick-start motorcycle to electric

Objective: Modify Honda S90 '67 so that it starts by switching the key or by pressing a button. What's needed? What are the downsides? Can I still start it using the kick-start in case the battery ...
2
votes
0answers
87 views

Honda Dirt Bike cr70r not accelerating well

This is an older bike that sat still for over 10 years. Replaced the carb, fuel lines and valve. I have tried tuning the carb to solve the issue. Bike runs fine idle and rides ok slowly (in 1, 2 and 3)...
2
votes
0answers
304 views

Kawasaki Z750S weird electrical problem when starting, any idea what could be the problem ?

I have a 2005 Kawasaki Z750s and this weekend I was on a ride and stopped at a rest stop, and when I decided to leave, I turned the ignition on, pressed the kill switch on and the start switch and ...
2
votes
0answers
75 views

Royal Enfield Classic 350: Dislocating Carburetor Clamp

I own a classic 350. While starting my vehicle, sometimes the carburetor hose becomes disconnected from the mounted clamp area. Has anyone faced this issue? If you have, please help me out.
2
votes
0answers
454 views

Motorcycle won't start sometimes

I have a 2004 Cagiva Raptor 125 (2stroke...) I had the engine rebuilt last summer: New piston, new rings, new gaskets, the cylinder was ( i don t know the correct therm) corrected: they added some ...
2
votes
0answers
552 views

Fork oil for Suzuki GSXR 155 Naked

I want to change the fork oil on a Suzuki GSXR155. Which fork oil should I use? The suspension is not working and the handlebar is vibrating while riding on speed brakers, off road drives.
2
votes
0answers
191 views

Fuel system hose routing - Triumph Bonneville

Can anybody help? I'm putting 2005 Triumph T100 Bonneville back together. I seem to have got confused with the hoses from the carbs and petrol tank and the tip over hose. Anybody know of a drawing ...
2
votes
0answers
282 views

how to get to spark plugs on a C109R Suzuki?

How do I get to the spark plugs on a Suzuki C109R? I just bought the bike and did not get a manual.
2
votes
0answers
99 views

free moving bike in gear

I am using Yamaha FZ. Sometimes in morning, the bike is not start with electric as well as kick start. When i put it in gears and tried to move the bike, it will move like neutral gear. If I move the ...
2
votes
0answers
110 views

When I shut the bike down there is horrible fuel smell

2003 Harley-Davidson FXDL. After I shut it off, I get this horrible fuel smell. The bike has Mikuni 42 carburetor, Pingel shutoff valve, carburetor rebuilt, Pingel holding strong. I do not have the ...
2
votes
0answers
1k views

No power to my motorcycle

I have a Yamaha YZF600 which was running well. I began to have issues starting and had to jump it a few times, so I replaced the battery. After a couple of weeks I finally got the battery and charged ...
2
votes
1answer
781 views

Idle RPM is not setting properly sometimes

I have an Apache RTR 180 (Carbureted) Sometimes, when I downshift, and when shifting down to 1st gear (to stand still), the RPM shows somewhere around 2000. The normal idle is around 1200 - 1400 RPM. ...
2
votes
1answer
838 views

How to drain the fuel tank on a first gen (2000) SV650?

I’ve got some fuel line (top yellow fuel line in picture) from the petcock to a gas can. I disconnected the vacuum line. I read some cryptic hints about Mity-vacs and opening the throttle but ...
1
vote
0answers
33 views

CB400SF Hyper Vtec Spec 3 Sluggish performance @ 5000 rpm onwards

my 2005 CB400SF is experiencing sluggish performance at 5000rpm onwards. I deemed it sluggish because the sound is not as "smooth" as before. It behaves like how a rev limiter would. Vtec ...
1
vote
1answer
60 views

Does the engine oil affect the top speed of each gear

I have an R15v3 with 4.5km mileage, just recently I had no choice but to use semi synthetic oil because the shop I bought the oil from gave the wrong product, now I feel that my engine "roars&...
1
vote
0answers
18 views

Motorcycle turns but won't start

I have a Suzuki Bandit 1250s. It was standing for about a year, after which I decided to ride it again. But it started giving a problem where it won't start when hot. The engine will turn like it has ...
1
vote
0answers
12 views

How can find if the CDI of my bike is working fine?

I have a 2001 Yamaha RX 135 2 stroke motor bike and have installed an aftermarket performance CDI which claimed to give me better performance and RPM rev. But since I have installed it I seem to feel ...
1
vote
0answers
93 views

What is the motorcycle in this picture?

I came across this image while looking for vintage adventure motorcycles and would really like to know what motorcycle it is. The place where I found the image as well as the several alternate places ...
1
vote
0answers
38 views

Electronic starter shaft for 49cc engine

I have a 49cc 2 stroke engine in the following format: I also have a 12V electronic starter like this: However what I am currently lacking is a bolt/shaft to connect the electronic starter with the ...
1
vote
1answer
43 views

I have a 1999 yamaha r1 and it bogs out really bad

So I've cleaned the carbs twice on this bike and its like it's not getting enough fuel because it will only run on starting fluid and I've cleaned the tank and got new hoses and still the same problem ...
1
vote
0answers
53 views

Broken ankle, can't use kickstarter. How can I work on my dirt bike engine?

I'm working on a kickstart-only 1991 DR350 that doesn't run. Unfortunately I recently broke my right ankle so I'm not really able to use the kickstart lever, and there aren't any hills near my ...
1
vote
0answers
72 views

Motorcycle not starting unless I force it into first gear, but the battery itself is ok

I am having a weird issue with my Kawasaki Z650 2019, as per title. It used to start when I just pulled the clutch, now it needs be forced into first gear in order for it to start (while holding down ...