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

Pretty Common Problem with the Duke 390 This is a very common issue with the KTM 390. There are dozens of posts regarding customers who are experiencing the same exact issue. Additionally, there are ...
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6 votes

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

Yes. You should allow your engine to warm up a bit. If the temperature is exceedingly cold, say -10c, you would want to allow an extra minute or two to heat up and even out the temperature between ...
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6 votes

Clutch sticking, wait until engine's warm

It sounds like your clutch master cylinder is initially letting fluid past the piston seals. Pumping the clutch pedal sounds like it gets the piston sealing again so that the clutch starts to work. I ...
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5 votes
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Should I use the heater while warming up my car?

You are right that the heater in internal combustion engine powered vehicles usually uses the waste heat of the engine for heating – that's why in the summer you can use the heater to get a bit of ...
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5 votes

Should I use the heater while warming up my car?

Well, this is a question for a Canadian guy. Here's the thing: in extreme cold (-20C and colder), the moisture coming off your breath will condense as ice and fog on the inside of your windows. Air ...
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5 votes
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1996 Rav4 not warming up properly when driving and heat not hot

If the thermostat is stuck open, you would get the symptoms you describe. A thermostat stuck closed will cause overheating.
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4 votes
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Rough idle while warming up, goes away after a tiny rev

You have two separate idle settings on your carburetor. One is for the choke idle and the other is for your off-choke idle. When you start your vehicle in the morning the idle setting will be fixed ...
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4 votes

Black Spark Plugs that Clean Themselves

I've seen this behaviour on a car with a hairline crack in the fuseboard. The result was that sometimes the car would run beautifully and sometimes it would all but die and bog down on the throttle. ...
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3 votes

Black Spark Plugs that Clean Themselves

You mentioned the coil and leads, but I would inspect the leads for cracks etc. They may test within spec when removed from the car, but when vibrations start or they bend and flex, they could leak ...
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3 votes

Clutch sticking, wait until engine's warm

I agree with @HandyHowie in that it sounds like your clutch master cylinder is on the way out. Something to check before you go this route, though, is the hydraulic fluid level for the clutch. Looking ...
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3 votes

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

Firstly This is common on high capacity single cylinder engines where the compression ratios are very high compared to relatively sized multi cylinder engines. I have ridden a KTM 390 and I have ...
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3 votes

Cold engine works on three out of four cylinders

Background The CBR900RR has the following attributes. Carb and FI versions depending on year. 4 Carbs or 4 throttle bodies, depending on year Two coil packs, 1 for cylinder 1 and 4, 1 for cylinder ...
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2 votes

Motorcycle gears seem really stiff and hard to shift when cold

You asked Could this have something to do with the clutch? Answer Yes. IMO this is a clutch issue. Background When your clutch drags and does not completely disengage there is a slight load on ...
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2 votes

1996 Rav4 not warming up properly when driving and heat not hot

One possible explanation is that some coolant is bypassing the thermostat altogether. Depending on the thermostat and seal arrangement, this could happen if the thermostat isn't properly seated in ...
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  • 39k
2 votes

Should I use the heater while warming up my car?

If I understand things correctly...the thermostat will not open until your car reaches operating temperature. So at first, you're just blowing air over a cold heater core. As long as that thermostat ...
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  • 381
2 votes

ATF Warmup (On a cold day)

That is not a good idea, nor will it actually help. When you first start a car in cold weather the engine starts to spin the transmission through the torque converter, which pumps the fluid around the ...
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2 votes

ATF Warmup (On a cold day)

Do not do it! I have no idea if you are talking about a dump truck or a Yaris. Nonetheless, don't do it. Not only is it dangerous (if your foot slips off the brake), in more modern cars it could ...
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  • 9,035
1 vote

Black Spark Plugs that Clean Themselves

Something wrong in the fuel enrichment for a cold start. Too much fuel during the start and warm up, but in normal operation the mixture is correct and it burns soot from the plugs. The ignition is ...
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  • 3,660
1 vote

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

Its always good to warm up a engine before a throttle -away -to glory. I keep my ktm idling for 2 mins and then constant throttle at lower gears when i start off i dont ride it above 50kmph for the ...
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  • 37
1 vote
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BMW R1200GS LC Warm Up

A minute or so is usually fine Unless your riding in sub-freezing temperatures of course, then you'll want to let it warm up a bit, but if not. I wouldn't worry much about this. The LC version of ...
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1 vote

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

When a professional athlete warms up in the cold they don't walk slowly because it does not warm their muscles quickly enough and they don't sprint because they could damage something before their ...
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  • 115
1 vote

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

When the engine first starts in cold weather, the oil is warming. The rings on the pistons are reseating, from being cold, therefore contracted! As the engine runs, and warms the rings, they expand, ...
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  • 19
1 vote

Motorcycle gears seem really stiff and hard to shift when cold

It's clutch problem. The fix: Loosen the locking adjustment and get a little bit of play in the clutch handle. Move your handlebars all the way to the right and all the way to left while doing this. ...
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