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May
2
comment What is the yellow precipitate in my outboard's carburetor?
+1 for draining the carbs if you're going to get let it sit. Even with Sta-Bil in the tank, you'll have fewer problems if you simply shut off the gas and drain the carbs before leaving the boat sit for an extended period. And the amount of gas you drain out is so small, I'd suggest draining the carbs every time you think there's even a slight chance you won't be using the boat for a couple of weeks.
May
2
comment 2001 Suzuki Katana 750 won't start after jump start and new battery
So you got a jump start and drove the bike home, but it won't start after you replaced the battery?
Apr
29
comment Should one fit the least-worn tires to the rear wheels?
The general rule "has become" to put the good tires on the rear? I was taught that in my driver's ed class in the 1970s!
Apr
26
comment Car randomly pulls left or right when braking
Are the wheels and tires the same size as the ones they replaced? If they're not, then you should have an alignment done.
Apr
26
comment Is there a way to check for rust on a classic car before purchase?
I can vouch for the magnet test. I once looked at a car where most of the rocker panels had been glassed over. They looked fine to the eye, but the magnet wouldn't stick. That was my clue to crawl under it and check the frame. It wasn't as bad as the picture above, but it was bad enough.
Apr
22
comment Software solutions to lighter flywheel issues
I thought we were just addressing the high idle speed issue. I think OP still wants the performance advantages of a low-mass flywheel, but doesn't want to pay the cost during low-RPM operation.
Apr
22
comment Wheel rim chrome repair
If you do this, you should also get the rims clear-coated after you're done, or after their first exposure to salt you're going to have to do it all over again. Wax will work if you don't mind doing it every month (at least).
Apr
22
comment Software solutions to lighter flywheel issues
You could have a separate valve for venting the "early compression" air (sort of like the old Mitsubishi jet valves, but in reverse). The fuel mapping would have to be revised to compensate for the fact that you're expelling already-metered air, but I don't think there's any way you're going to get out of tweaking the ECU no matter which approach you use.
Apr
19
comment Brakes getting tight on their own
Have you changed the brake fluid with new fluid of the recommended type, and fully bled the brakes? Did you lubricate the sliders when you replaced the caliper?
Apr
19
comment How can I keep stray cats off my car?
Won't that set off dogs as well? Don't think I'd trade dusty paw-prints for a night full of howling dogs, but maybe that's just me.
Apr
15
comment Reviving a vehicle that has been idle for a long time
What I've done when bringing an engine "out of retirement" is to remove the plugs, spray some WD-40 (any light oil would probably work) into the cylinders, wait five minutes to let it work its way down to the rings, then crank the engine (with the plugs still out) until I see good oil pressure (usually just a few seconds). Then I replace the plugs and start the engine normally.
Apr
15
comment Reviving a vehicle that has been idle for a long time
If you take your car to a shop, they should be able to pump the old gas out of the tank and put some fresh gas in. They may charge you for "material disposal", but they at least have the facilities to take care of it properly.
Apr
15
comment Pros and cons lowering sedan?
Are you sure your car has one? From what I can tell, only midsize to large trucks use torsion keys for suspension adjustments. For most cars, lowering is done by replacing (or cutting, if you like to live dangerously) the springs.
Apr
12
comment What makes two-stroke engines less fuel-efficient than four-strokes?
@IhavenoideawhatI'mdoing: I don't think we have any real data to go on. Engine inertia is going to be a negligible factor in motorcycle MPG, so if you really want to measure it you're going to have to run two similar unloaded engines at the same RPM and measure their fuel consumption. I think Anarach's assertion that a two-stroke consumes twice the fuel twice as often is wrong. If the cylinder size and compression ratio are the same, then the fuel/air mixture will be the same, not 2x.
Apr
11
comment What makes two-stroke engines less fuel-efficient than four-strokes?
@IhavenoideawhatI'mdoing: I think a four-stroke engine has considerably more inertia, due to the valve train, and it's not simple rotational inertia, either.
Apr
11
comment What makes two-stroke engines less fuel-efficient than four-strokes?
I'd also add that for small engines, the weight reduction and ability to operate at high RPMs are also important factors. The lack of low-end torque is also less of a disadvantage for a lawn mower than it is for a car.
Apr
11
comment Making a custom exhaust
I have also heard stories (albeit with regards to racing engine operating at high RPMs) of engines getting bent valves from drawing cold air into the exhaust header, so there may be a possibility of engine damage if you do so. But I imagine the noise will convice you pretty quickly that it's not a good idea!
Apr
7
comment Battery Light Won't Go Off Since Changing Battery
Did you check the tension in your alternator belt? If not, might be worth a try to tighten it up and see if the problem goes away again. If not, maybe take the alternator to the auto parts store and get it tested. If it's the original one, it may be marginal at this point.
Apr
7
comment Car rolls back when braking at low speed on 14 ' Audi S4 (B8.5)
By "jerks a bit backwards", do you mean it rotates backwards, or it moves backwards in the wheel well?
Apr
7
comment 06 Solstice LE5 DTCs
Have you checked the charging voltage? If it's high your battery will overcharge, and you may not notice until the electrolyte boils away. High voltage can also trigger false codes.