1
vote
0answers
36 views

The critical components that define an Adv tourer from other motorcycles [closed]

Mainly want to understand the running of an adv tourer. 1) what is the basic difference between the showa suspensions,WP suspensions and an upside down fork? Advantages & disadvantages of the ...
24
votes
5answers
6k 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
5answers
8k views

How to save fuel on downhill slopes on a motorcycle: clutch or neutral?

I have a two wheeler i.e. bike (Honda company, four stroke) which has four gear. While driving my bike, when I come to downhill slopes, I shift the motorcycle to neutral to save the fuel. (The slopes ...
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 ...
6
votes
0answers
63 views

Idle drop in 1991 Buick Park Avenue

I have a 91 Buick park Ave that is experiencing these symptoms. When starting from a cold start the engine will turn over, reach around 1000 rpm, then die. When applying gas and turning the key the ...
5
votes
2answers
106 views

What is a bobber?

What is a bobber and are there advantages for turning your motorcycle into one as opposed to running it stock?
5
votes
1answer
37 views

Toyota corolla verso 1.794 petrol vvt-1-t2 [closed]

Recently Purchased Vehicle @milage 81.075 in the past vehicle has consumed 5.25 Litres of oil a full oil composition test was carried by my Garage. They also advise it is an uneconomical repair it has ...
7
votes
1answer
67 views

What is a sprag unit and what does it do?

I know a sprag unit is used in the transmission. What is it and how does it work? Is it used anywhere else or is it strictly a thing used in transmissions? Are there different kinds of sprags?
11
votes
1answer
94 views

Are there any plans to update OBD-II?

OBD-II is ancient It predates the Porsche 911 GT1, Windows 95 and implementation of the Schengen Agreement. I would have thought that SAE would be working to add more diagnostic coverage for ...
10
votes
4answers
41k views

Oil burning smell and slow oil leak

I am wondering what types of issues I am most likely looking at with this; My 2003 Ford Escape (V6) has an increasingly pronounced burnt oil smell that has developed slowly over a year or so, coupled ...
4
votes
1answer
35 views

1994 Silverado not accelerating past 35

I have a 1994 Chevy Silverado. On my way to work today my truck would not accelerate past 35 mph but was revving high rpm's. I stopped and checked my fluids and my ATF wasnt showing anything on the ...
5
votes
3answers
79 views

How accurate and precise is a dyno and why?

It was pointed out to me that if you do two back to back runs of the same car on the same dyno the graph of the results will be different. Also, if you run the exact same car on two different dynos ...
33
votes
9answers
63k views

What actually happens when there is not enough oil in a car engine?

When a car is topped up with oil, it clear to most people that you are supposed to fill it to the recommended amount as specified by the manufacturer (normally on a dip stick). What exactly are all ...
6
votes
1answer
135 views

Volvo S80 II 2.4 D5 DPF (Diesel Particulate Filter) regeneration conditions

What are the conditions required for the DPF (Diesel Particulate Filter) regeneration? Is it only exhaust temperature or speed and RPM also? I'm wondering if DPF can regenerate while car is at ...
8
votes
1answer
116 views

Steering Pump whining; no fluid loss

Over the last 3 month, our 2005 Honda Odyssey has had a whining steering pump. Here's a bit of the background, from the day that it started until present. One day in mid-October: Get a call from my ...
7
votes
1answer
55 views

Issues cold starting diesel van

Our van has been progressively getting worse at starting up in the morning. It only has issues when the engine is cold. Initially I thought it might be the glow plugs. I tested their resistance and ...
6
votes
3answers
487 views

Conversion from kW to HP?

Many of the European manufacturers of cars and motorcycles publish their ICE power numbers to reflect kW rather than HP. Is there a reason for this? What is the conversion for kW to HP?
4
votes
0answers
96 views

2008 Vw Jetta won't move? Transmission issue!! Help [closed]

I have a 2008 Vw Jetta 2.5l. On the way to work this morning I stopped at a stop sign and when I took off I heard a clunk and had to coast off the road. It is an automatic transmission and I can put ...
3
votes
0answers
31 views

2005 Altima Shuts off while stopped, starts back up [closed]

Nissan Altima shuts off while waiting at a light. While driving at above 45mph it hesitates/jerks. Engine light has turned on only once and gave error code for cylinder#2 it has since not turned on ...
5
votes
2answers
209 views

2006 Jeep Commander - heat problems

My heater blows cold air at idle. and warms when driving. my temperature gauge goes up when the air is blowing. What could it be?
4
votes
1answer
103 views

How Much Grease to Put into the CV joint?

I'll be replacing my CV boots soon and was planning to clean out all the old grease and put in new grease. Should I pack the whole thing full of grease, including the boot, or is just packing the ...
1
vote
0answers
90 views

My mechanic forgot to put Coolant and now my car is not work! what can i do? or who should i blame [closed]

I had a small accident and I hit the whole front of my car and the radiator was damage. I took it to my friends mechanic (which i though i could trust) and asked for an estimate. He owes a Bodyshop ...
4
votes
2answers
96 views

What is meant by bore and stroke?

All engine specifications reflect a bore and stroke number. Example Aprilia Tuono V4 R 2012 Four stroke, longitudinal 65° V four , DOHC, 4 valves per cylinder 998.9 cc / 60.96 cu in Bore x ...
4
votes
1answer
76 views

Best Way to Clean CV Joints of Old Grease

I'll be replacing the CV boots on my axles pretty soon and was wondering what the best way to clean the old grease off is. Are there any common solvents that would be useful, or are just a bunch of ...
7
votes
1answer
203 views

How do old cars actually lose horsepower?

I have heard that when a car gets old it slowly but surely loses its horsepower to some degree. For example, I used to drive a 1997 Ford Fiesta with a 1.25L 1242cc engine that supposedly produces a ...
4
votes
0answers
37 views

VW Golf TDi smoke

My 44k miles 1.6 TDi after a 2m down hill drive from cold and stopped at lights began to smoke - burning the oil smell which lasted fo several miles.Engine has now apparently returned to normal. Any ...
8
votes
2answers
141 views

Scooter: Motor goes off when accelerating

A friend wants to sell me a scooter for a very cheap price. It is a Chinese model (Qingqi QM125T-10M). Probably a 125cc machine. He tells me that the scooter worked fine and he used it to go to work ...
6
votes
1answer
78 views

Trouble starting car, cold weather. MB A140 W168

So, I have a Mercedes-Benz, A140 W168. I moved to Finland about 18ish months ago which is when we bought the car 2nd hand. Last winter temperatures only went down to around -15C (5F) degrees, and ...
12
votes
5answers
5k views

Should negative trickle charger clips be attached to the battery negative terminal, or ground?

I'm trickle-charging a car using direct connections to the battery. I thought this couldn't be simpler: ventilate, unhook the battery, connect the positive first, then the negative, then turn on the ...
5
votes
1answer
51 views

Advice on learning automotive repair knowledge

I am an online customer service selling automotive diagnostic tools. Now I have a question, I came to my company since last October. I don't know much about our product, even though I am just a ...
7
votes
1answer
292 views

ATMA on OBDII not Working

I have successfully connected a terminal android app to the obd port of my car. And tried dry run of many at commands, many are working as expected. But ATMA (AT command to Monitor All) is not ...
9
votes
2answers
67 views

How do I go about replacing the head gaskets in my Dodge truck?

It's a 1999 Dodge Ram 1500 4x4, Laramie SLT, automatic transmission, 5.9l magnum engine, and crew cab (222k mi). It seems to have some head gasket leaks, as there is some coolant burning. I have only ...
10
votes
1answer
100 views

Computing Wheel Torque From Engine Torque

It seems possible to obtain engine torque and RPM from a truck CAN bus. I'd like to estimate tractive force at the wheels given these two values. How should I go about computing torque at the wheels? ...
5
votes
1answer
393 views

Ford Focus engine cuts out at 3000+ RPM

I should provide a little background to this issue as I believe the two are most likely related. The car is a Ford Focus 2008 1.6 TDCi Diesel (UK) which this year has had a brand new battery and ...
4
votes
5answers
2k views

Right hand side blinkers on Holden/Opel Barina not working

The right hand side blinkers in my 2005 Holden/Opel Barina stopped working. When I turn the blinkers on they do the right click-click sound just much faster than usual. All 3 blinkers stopped working. ...
8
votes
3answers
172 views

Can I buy a used car to learn auto repair & DIY?

I am seriously considering learning some auto repair knowledge. I don't want to use my good car as my experimental starter kit. So can I buy a used car somewhere and have it towed home just for the ...
8
votes
1answer
50 views

Help me with my hand Brakes

I have a 2007 Honda Civic DX sedan. Recently my hand brakes stop staying up. Mechanic said the cables are good but I need some sort of clip or spring but he isn't sure because he is unfamiliar with ...
5
votes
1answer
54 views

2006 Honda Civic Hybrid - instrument panel lights going haywire

My wife has a 06 HCH that we bought from an individual owner January of last year. It's been running fine, until Jan 5th of this year. It seems the IMA battery is degrading, but that shouldn't cause ...
4
votes
1answer
56 views

Vehicle light problems 101 (2000 buick century)

How can make really dim brights brighter. And the dash light doesn't turn on (the prnd and mileage lights). I've jumped my car once when it died and they all turned on but they never did after that....
3
votes
1answer
56 views

Is a chuffing sound from a 1999 Saab 9-3 sign of an exhaust leak?

I hear this sound when running alongside curbs or concrete walls with RPMs below 2000. I suspect it's a leaking exhaust manifold gasket, and intend to replace this in the near future. When I try to ...
5
votes
2answers
180 views

Reaching top speeds to maintain engine tuned

I live in Central America. Driving is different than in 'Western' countries. Roads are often in bad shape, and it is very common to encounter people / cows / carts / painfully slow cars on the '...
6
votes
1answer
78 views

What precautions should I take when using snow chains?

I have purchased some snow chains, but the manual provides fitting instructions, and it only says to remove them when the road is completely clear of snow, and never drive faster than 40mph (about ...
14
votes
2answers
384 views

'00 Honda CBR929RR - Unknown issue, help!

Sorry for the ambiguity here.. I'm not sure what the issue is with my bike. I have a bunch of symptoms and my hypothesis is that it's a cascading failure and I'm just seeing a bunch of effects down ...
8
votes
1answer
80 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 ...
12
votes
2answers
2k views

What is the motorcycle equivalent of OBD-II?

I once met an OBD-II expert while traveling and asked him if motorcycles (especially the fuel-injected ones) employ a similar protocol. He said that the use of such a protocol is not as widespread ...
6
votes
3answers
769 views

What is the effect of adding more cylinders to an engine design?

I was trying to understand more about torque when I was comparing two engines, totally different engines. one engine ( Straigh 4 ) that produces 149 ft-lb at the maximum HP given (237HP@8300) the ...
8
votes
2answers
80 views

Gear selection on 6 speed box

Hi I have a Peugeot 308 1.6 ehdi with a six speed manual gearbox and have noticed that when selecting first or sixth gear it does not go in smoothly it can be notchy or clunky this is quite annoying ...
15
votes
13answers
78k views

How long should I let me car warm up in the winter?

I have been reading mixed reviews about how long to let your car warm up before driving in the winter months. Most of the articles say that the best way to warm it up is to let it idle for 1-2 minutes,...
5
votes
1answer
81 views

Are there any vehicle engines that don't have a mechanical oil pump?

I my answer to How to move car a small distance without tow dolly I suggested putting a manual transmission vehicle in 3rd gear while towing with a rope or strap to apply back pressure and help keep ...
4
votes
3answers
23k views

Factory panic alarm going off after changing battery [97 Toyota Camry]

We just changed the battery in our 1997 Toyota Camry now as soon as we connect the battery the panic alarm goes off and all the doors lock. How do we stop this / turn it off. ///note: the battery in ...

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