Doug Welch

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Viewing 15 posts - 256 through 270 (of 921 total)
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  • in reply to: Rotax SR – Keeps killing battery #58325
    Doug Welch
    Participant

    The wiring on the Rotax is very simple. The hot lead goes first to the starter button and then directly to the starter. That is why it will crank without the ignition switch on. From the starter button, there is a secondary lead to the ignition switch. This switch energizes the coil so that the engine will run. I have seen this switch go bad but if it is mounted in fairing like most of us, it will not short the system. If they go bad, usually the motor won’t start.

    If the battery stays charged will the ignition switch is off, the problem is not in the starter side but in the ignition side. Look very carfully for an exposed wire in this part of the loom. Peal off the sheathing if you have to as the break could be hidden. (Not likely but possible)

    When you say it kills the battery, will the battery take a charge after being completely discharged? If not, I have to ask what type of batterys are you using.

    in reply to: 06/24 Club race / Rmax race ? #58327
    Doug Welch
    Participant

    The IMI race is like the other RMax races so far. They are club races with the RMax added to the program. The RMax classes will be run to RMax rules including fixed gear. It won’t hurt the mini engines one bit to run at max rpm as it is so far below what the engine is capable of it won’t hurt them.

    After waht we ran a senior engine at in SoCal early this year, I have no doubt about how sturdy these engines are. We ran one at 14,000+ rpm for long periods of time (much longer straight that IMI) Temps were well over 100 and the engine was running at 205 deg F. It ran all day with no problems.

    in reply to: Rotax SR – Keeps killing battery #58323
    Doug Welch
    Participant

    If you are using the cheap batteries that are designed for stationary use, its entirely possible to kill them in just a few minutes. These batteries are designed for use in UPS and alarm systems and will not hold up to banging about in a race kart.

    If you are using a quality motorcycle built battery, there has to be a short in your system. I would completely remove the wiring loom from the kart and check every inch of it for a bare wire.

    in reply to: Rotax Exhaust Valve #58320
    Doug Welch
    Participant

    Scott

    Screw it all the way in, then back it out 16 to 18 clicks. It should be close.

    in reply to: TAG Questions #58166
    Doug Welch
    Participant

    You should be able to run in Tag Masters as the rule is usually applied as 200# with driving gear including helmet.

    As far as engines go, the two most popular choices are the Leopard and the Rotax. We could get into big arguments but the bulk of whats at the tracks are one of those two. There is good support for both and they both have their advantages and disavantages. We sell and race both engines in our factory karts so if you want to call, I can give you more detailed information.
    303-781-7829

    in reply to: Newbie Question on Transporting Karts #58170
    Doug Welch
    Participant

    You probably can but who wants a oily go kart in the back. What many guys do is get one of those small untility trailers that lean up againest the wall of the garage. It works fine for running around to you local track.

    in reply to: What Not to do Before the Racing Season #58139
    Doug Welch
    Participant

    Jon

    There’s the problem. Breck is full of Texicans and they bring those snakes up with them. Better to ski at Copper. More natives=less snakes.

    in reply to: AWSOME VIDEO #58145
    Doug Welch
    Participant

    Rick

    The clutch won’t like the landing.

    in reply to: Driver Safety #57988
    Doug Welch
    Participant

    At Stars in the main, the blue flag is the removal flag. Once you see the blue, you report to the pits. Failure to do so and they stop scoring you at all. It is used as a plow for the leaders. It may remove as many as half of the racers.

    I would not advocate that here. I do not think its fair. The slower guys paid their money, they deserve as many laps as they can. I do greatly respect it that they don’t try to “race” the leader, or second or third for that matter. Like Tyson pointed out, you don’t have to get out of the way but you can make it easier. I do like the finger approach ( not the index finger) but I’ve seen too many times a heated battle for the lead get ruined when the lapper lets one by and chops off the second guy. Its not intentional and he knew there were two, it might not have happened.

    Just remember, the fast guys are not going to be patient about getting by. They will not follow for a lap or even a few corners unless they have to. If they do have to follow for a bit, they may not be too polite when they finally get around.

    in reply to: Shockwave closed for the rest of the week. #58069
    Doug Welch
    Participant

    @Mike Jansen wrote:

    And to get a job!

    He didn’t want a real job so he’s coming to work for Shockwave. Look for lots of new products and services.

    in reply to: Driver Safety #57985
    Doug Welch
    Participant

    Actually, at the national level they try to show a number of fingers of the number of karts you, the lapper, are to let by.

    in reply to: Thanks everyone for a great weekend #58008
    Doug Welch
    Participant

    We now have plastic sprocket guards in stock.

    in reply to: Driver Safety #57972
    Doug Welch
    Participant

    I can not comment on most of the incidents this past weekend but I did see the one that put Don in the hospital. From my angle, it looked like a racing accidnet. Two guys trying to get the same piece of ashphalt at the same time.

    I can follow up a bit on Jim’s. We do have very different levels of skill out there in most of the classes. For some, this was their first event. For others, they really are national level drivers. In the Tag classes, a driver who is two or three seconds slow can in fact hold up a much faster driver unintentionally. He can be very difficult to pass and there can be unintentional contact.

    For example, a slow driver often is not consitant in their drving line. Often they are early or late at turn in or they slow more than needed. Yet they come off the corners at full throttle. The line they use in the corner disruptes the momentum for the faster driver turning the pass attempt into little more than a drag race. Given the relativly equal nature of the engines, this can be very difficult. It is not uncommon for the faster driver to bump the slower guy at both entrance or exit. It is not intentional, but it happens.

    This leaves the race director with a very difficult job of determining if it was intentional, which is illeagal, and what was unintentional. Now the reputation of the drivers often becomes a factor. Many of the better drivers who unintentionally bump a racer will appologize after the race.

    To try and enforce a no contact rule would be next to impossible and additionally, would not fully prepare the drivers for the next level of competition. It would be nice if we could seperate the drivers by skill in addition to engine packages but do we have that much time in the day?

    Right now we are suffering from the problem of too much sucess. It’s great that we are getting far more racers than we thought at the start of the year. Reducing the CSC to 5 races, combining the club series in to one has exploded the numbers. It is what we hoped would happen but never dreamed to this level it would happen.

    in reply to: Results on MyLaps for 5-20 TTAC race #57952
    Doug Welch
    Participant

    Oh for Pete’s sake. He finishes one stinking race and he wants to be on the podium. You gotta walk before ya can run Mike.

    in reply to: Results on MyLaps for 5-20 TTAC race #57949
    Doug Welch
    Participant

    How’ed that checkered flag look Mike?

Viewing 15 posts - 256 through 270 (of 921 total)