ukguy
09-24-2007, 01:51 AM
being in from the uk there is a limited amount of information about kids quads and tuning so im trying to get a little information if possible.
we currently run pro sharks which i think you call apex and are in 3rd in our kids version of national but one series uses mostly modified bikes and he wanted a go so we fitted a poted barrel, carb ex, etc etc and the bike goes ok but we want a bit more as the bike doesnt stay with the leading riders and you can see the power differances.
with regards to the barrels are the aftermarket barrels already ported or tuned you buy a kit and fit the following and you will get x amount of power or does someone have to port the barrels etc, if so when the barrels are ported is it just the exhaust port that is widened (very similar to mine) or is work done on the inlet and transfer ports, is any work carried out to the casing at all or are they just left as is, would the head also be tuned i heard about squish etc but dont understand what they are refering to:confused:
with regards to variators and angles can any one explain what the differing angle will do in relation to rev range, pick up top spead and gearing, can you also alter the angle of the rear pulleys to give better results, and what about the torqu spring i changed mine but if any one can can tell me what this controls and its effectiveness on the bike and its running that would be great.
if some of the things i have said seem to confuse you please be patiant there is a lot to make sense of to get the best from the bike and i`m just trying to get information to make the best informed choice of what route to go down to get a competative bike, why not take it to a shop some one might say but the only problem is the shop isnt going to be at the trackside if or when it breaks down so the knowledge can be put to good use.
thanks
we currently run pro sharks which i think you call apex and are in 3rd in our kids version of national but one series uses mostly modified bikes and he wanted a go so we fitted a poted barrel, carb ex, etc etc and the bike goes ok but we want a bit more as the bike doesnt stay with the leading riders and you can see the power differances.
with regards to the barrels are the aftermarket barrels already ported or tuned you buy a kit and fit the following and you will get x amount of power or does someone have to port the barrels etc, if so when the barrels are ported is it just the exhaust port that is widened (very similar to mine) or is work done on the inlet and transfer ports, is any work carried out to the casing at all or are they just left as is, would the head also be tuned i heard about squish etc but dont understand what they are refering to:confused:
with regards to variators and angles can any one explain what the differing angle will do in relation to rev range, pick up top spead and gearing, can you also alter the angle of the rear pulleys to give better results, and what about the torqu spring i changed mine but if any one can can tell me what this controls and its effectiveness on the bike and its running that would be great.
if some of the things i have said seem to confuse you please be patiant there is a lot to make sense of to get the best from the bike and i`m just trying to get information to make the best informed choice of what route to go down to get a competative bike, why not take it to a shop some one might say but the only problem is the shop isnt going to be at the trackside if or when it breaks down so the knowledge can be put to good use.
thanks