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Showing posts with label engine starting. Show all posts
Showing posts with label engine starting. Show all posts

Friday, March 13, 2009

In Guanajuato, Motor is OUT!

So we made it to Guanajuato in one piece. We stayed over in Aguascalientes for a night, both for Ben to check out the Museo Nacional de la Muerte (National Museum of Death), from which we have some very interesting photos of the art there, 



but also because we literally got pulled over by a fellow motorcycle enthusiast, Duro, who runs the blog En Dos Ruedas, written in Spanish.



We stopped in Aguascalientes for three hours, putting us off track for our destination in Guanajuato that night, so we got a room, saw the museum and walked around downtown a bit. 

The three hours we spent at the motorcycle shop was pretty hilarious. It involved Ben waving his hands at Harley Davidson enthusiasts, saying, part in Spanish, part in English, "Please, please, no! Don't drill into the head!" For those who don't speak motorcyclese, the head basically equals the motor and drilling into it and leaving metal shavings is a terrible idea. 



We made some quick friends in Aguascalientes, and got a little nervous about the cam chain tensioner being loose--not only are we losing a lot of oil regularly, but the cam chain tensioner is sitting in the motor, shaking around. If it gets completely detached from the outside, it will bash into something important (i.e. the valves or the pistons or something like that) and then the ride is OVER. Capital O-V-E-R. So Ben took the motor out, again. And I helped, a little. Here are the photos:






This is Judiht's courtyard, and the view from our current bedroom. There's Apolo, the collie and the engine sitting out in the courtyard.


Tuesday, February 3, 2009

Roadside Mechanics Series #2 Check, Double Check:

The fuel line was clogged in the petcocks. I had forgotten there was a filter in there. Jen and I had even cleaned them in Dallas, and before we left New Orleans, but I forgot about checking them in Galveston. There was just enough crud getting through the old filters in the petcocks to make it look like our in line filters were doing their job and giving me the false impression that our fuel system was clean. Check, double check, and get it done right the first time.


Our gas tank was in need of an overhaul due to rust. There are many methods to clean out a rusty gas tank. Some people would say the best method is to go on ebay.com and buy a new one, but for our situation we were going to have to get dirty. The prevailing methods for cleaning out a gas tank use a three part system with the last step being the addition of a plastic liner.

I went with the first two steps. This involved shaking the tank excessively with a handful of nuts and bolts inside for over an hour. I even tried to sell this bit of work as a workout and get others to pay me to do my work. Unfortunately that didn't pay off, but my labor did. After the nuts and bolts were drained, the tank was ready for its acid bath. For this part I used a ten percent solution of muriatic acid and filled the tank all the way to the top. I let this sit for 2 hours while I cleaned out those pesky fuel petcocks. Once the acid bath was complete I washed the tank out with cold water, and dried it with an acetone to remove the last bits of water. Now it looks like a brand new tank on the inside.

Our engine starting is still hard. When cold, I can't kick the bike to life, but the starter button gets it going in about twenty seconds. The screeching is still there and the one mechanic that looked at the bike said the noise was related to an air leak. When warm, I can usually get the bike to start on the first kick. The starter button tends to hesitate when the bike is warm, but quickly gets the juice from the battery that it needs to complete the job, and it fires up in three seconds.

I took the carburetors off today to look at the flaps and fit some new gas lines. I found a little bit of Permetex gasket maker on the right side flap. This is in line with the diagnosis that our system is leaking a little bit of air. I also feel that the our RPMs are hanging at 2,000 when I pull up to a traffic light. I have heard that this is a signature sign of an air leak in the intake.

This is what we want our spark plugs look like after our tune-up.

Jen says this picture looks like the spark plug is going to hit on the motorcycle. Oh baby-baby.

My speedometer went out on me in Galveston. I haven't fiddled with it since then. So no diagnosis yet. I will take it apart and see whats up with it when we get a new front tire. When we started the ride I had to fiddle with it to get it to work right. I am not sure exactly how accurate it is, but most of the time it feels pretty consistent with traffic and those speed indicators that police forces use.

80 mph on the freeway is great. The bike handles well, and has lots of guts still to make passes. At first I assumed that we would be cruising at 60mph max, but soon enough 70 mph rolled around just fine, and when we were in a hurry to get to New Orleans 80 mph was no problem.

Benjamin

Tuesday, December 16, 2008

Before we leave Texas.

The Yamaha xs500 came with an alternate kick start for the very good reason that one day it knew you would find its battery dead. The starter wants to turn the engine over, but just doesn't have the power to do so. Almost all motorcyclists have come across this situation, and the same goes for most car owners as well. Some reminiscent memory of the lights being on when you went inside, or my usually habit of forgetting to turn the key off, drifts to mind as you sit there, cold, on a dead battery. We are lucky to have the alternative kick start on days when the bike isn't fully loaded, but i can just imagine the nightmare of jumping up and down on the motorcycle trying to kick start it with all our gear strapped on.

I digress, we have been having an issue with the bike not wanting to start up right away. Getting on the motorcycle and starting it up is a sort of ritual. I always ask Jen to wait to get on until I have it started. Most days it starts just fine. Perfect in fact. Usually all I need to do is touch the starter button and the bike fires up. On cold days the choke becomes a factor, and getting the idle set just right is always an issue. Since we left Louisiana the bike has been hard to start, very hard to start.

When I push the starter button a weak chug-chug emits as slowly the starter motor picks up a little steam. A slight scratching sound of unburnt fuel in the cylinders can be heard as the chug turns into va-va-va-va (I want to start but I am not going to do it) churning. I start to give it a little bit of throttle and the va-va gets quicker. At this point it seems that the engine is doing about twenty percent of the work and the starter motor is doing the other eighty. After about twenty seconds the ratio of work being done by the starter motor and by the engine turning its self over changes as the engine picks up all the slack and starts running on its own.

Before I go to the parts store and plunk down another 50 dollars for a new battery we are going to try to see if a battery tender will save the one we already have. A battery tender does just what the name says, it tends to the battery. It does this when it is plugged in and charging the battery with a current of house hold electricity. Battery tenders are more specifically used while motorcycles, boats, cars, and lawnmowers are parked, or garaged for the winter. For around 30 dollars battery tenders will keep your battery from dying of misuse, or in most cases just plain old non-use. The battery tender maintains a charge level in an unused battery without overcharging it. What I am suspecting is that our daily rides have not been enough to fully recharge the battery, and so we have been slowly draining it to where it now refuses to hold a charge. I need to do some more investigative work but I believe we should be able to install a battery tender and plug the motorcycle in on a daily basis to make sure it is fully charged everyday. I will let you know just how it goes once i have the answer to my dilemma.
Benjamin
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