Quadmaster 50
#2
$1799 list, I am getting one for my kid, I am looking for more info on restrictions that the mfg installed-example, they put an exhaust restrictor at the exhaust outlet. I also heard there is a restriction in the carb, anyone know anything about this??
#5
Buckweet,
My son just turned 5 and he loves the bike. He wishes it would snow so he can ride around the yard.. The only problem I have had with it is it's very cold blooded. I checked my latest Dirt Wheels and it no longer had the ad for the rebate. I bought mine just before the rebates were announced. I believe $200 in accesories was the rebate.
There is a post elsewhere here regarding the lt-80 that lists a lot more you can do than just take out the exhaust restricitor to liven it up some.
My son just turned 5 and he loves the bike. He wishes it would snow so he can ride around the yard.. The only problem I have had with it is it's very cold blooded. I checked my latest Dirt Wheels and it no longer had the ad for the rebate. I bought mine just before the rebates were announced. I believe $200 in accesories was the rebate.
There is a post elsewhere here regarding the lt-80 that lists a lot more you can do than just take out the exhaust restricitor to liven it up some.
#6
LT50 mods are as follows:
First, there is a washer in the exhaust at the cylinder head. Remove it.
Second, take off the top of the carb and remove the spacer that prevents the slide from moving to WOT.
Third, remove the intake manifold from the head and extract the hardened steal insert that looks like a key slot. Once removed, fill the area with JB Weld and refit as if it was the stock manifold diameter. Finish file the surface with a file.
Next, go to a GOPed shop and get one of the air filter adapters that are used on the GoPeds. Remove the stock air filter system and install that adapter (use locktite on the bolts). For the air filter, the K&N #RU-20 works best.
Finally, take the float bowl off the carb. Remove the smaller of the two jets. It is a pilot jet. Notice that there is another pilot jet located below the one you just removed. Leave that one alone! You will now be able to adjust the pilot for proper response using the pilot air screw. (Start at 1 turn out.)
The last step is the main jet. You will need a number drill set from #60-80. Get it from a Hobby store or tool supply. Use the drills like plug guages to determine stock main jet size. Write down that size. Then, go 4 drill sizes larger and give it a go. If it is flat on top speed, go up one drill size at a time till it works properly.
For some added response, you can take the baffle out of the pipe and open up the spark arrestor area. I add a 1.5" long piece of 1/2" diameter emt tubing brazed to the stock exhaust outlet. It helps direct the exhaust down and away from the plastic body.
IF you really want to spend some money on this little machine, get a 17mm VM carb from a 50-90cc youth atv. Raise the cylinder .050" and deck the top of the cylinder .050" Reduce the head volume .7 cc'c. On the clutch, it is difficult to take apart but you can find stronger springs that will help allow the engine to build rpm before moving forward.
NOW, the question is --- why do you want your 4-5 year old going that fast?? If it is your ego, put the kid up for adoption.
First, there is a washer in the exhaust at the cylinder head. Remove it.
Second, take off the top of the carb and remove the spacer that prevents the slide from moving to WOT.
Third, remove the intake manifold from the head and extract the hardened steal insert that looks like a key slot. Once removed, fill the area with JB Weld and refit as if it was the stock manifold diameter. Finish file the surface with a file.
Next, go to a GOPed shop and get one of the air filter adapters that are used on the GoPeds. Remove the stock air filter system and install that adapter (use locktite on the bolts). For the air filter, the K&N #RU-20 works best.
Finally, take the float bowl off the carb. Remove the smaller of the two jets. It is a pilot jet. Notice that there is another pilot jet located below the one you just removed. Leave that one alone! You will now be able to adjust the pilot for proper response using the pilot air screw. (Start at 1 turn out.)
The last step is the main jet. You will need a number drill set from #60-80. Get it from a Hobby store or tool supply. Use the drills like plug guages to determine stock main jet size. Write down that size. Then, go 4 drill sizes larger and give it a go. If it is flat on top speed, go up one drill size at a time till it works properly.
For some added response, you can take the baffle out of the pipe and open up the spark arrestor area. I add a 1.5" long piece of 1/2" diameter emt tubing brazed to the stock exhaust outlet. It helps direct the exhaust down and away from the plastic body.
IF you really want to spend some money on this little machine, get a 17mm VM carb from a 50-90cc youth atv. Raise the cylinder .050" and deck the top of the cylinder .050" Reduce the head volume .7 cc'c. On the clutch, it is difficult to take apart but you can find stronger springs that will help allow the engine to build rpm before moving forward.
NOW, the question is --- why do you want your 4-5 year old going that fast?? If it is your ego, put the kid up for adoption.
#7
The $200 rebate was a holiday offer & is no longer available. However, there is currently a $75 rebate & it is good till the end of March. The dealer had to do paperwork that takes the $75 off the price of the bike, but it was worth the extra 15 minutes of hassle!
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#9
Absolutely!
Suzuki uses the same old power plant.
Here is one other cheap mod. Remove the cylinder, make a copy of the stock base gasket using aluminum that is about .060" thick (anywhere from .043-.060" will work). Now, remove the same thickness as the new aluminum base gasket from the deck (top)of the cylinder. This will allow the transfers to completely open, it raises the exhaust port and retains nearly the same compression. What you will get is alot more response.
Also, if you are still running the same protruding electrode spark plug, install a standard plug instead. (BP5HS is stock --- Replace with B7HS) I have never found that the hot 5 heat range was necessary and the protruding electrode is not intended for this type of application.
You can also add a small portion of unleaded race fuel (VP MS103 is a good choice) With the fuel, it will usually start without the choke and run substantially better than just straight pump gas.
Suzuki uses the same old power plant.
Here is one other cheap mod. Remove the cylinder, make a copy of the stock base gasket using aluminum that is about .060" thick (anywhere from .043-.060" will work). Now, remove the same thickness as the new aluminum base gasket from the deck (top)of the cylinder. This will allow the transfers to completely open, it raises the exhaust port and retains nearly the same compression. What you will get is alot more response.
Also, if you are still running the same protruding electrode spark plug, install a standard plug instead. (BP5HS is stock --- Replace with B7HS) I have never found that the hot 5 heat range was necessary and the protruding electrode is not intended for this type of application.
You can also add a small portion of unleaded race fuel (VP MS103 is a good choice) With the fuel, it will usually start without the choke and run substantially better than just straight pump gas.


