fasteddie14
Member
What will happen if I decrease timing from 36 degree to 32 degree trying to get the motor to run cooler, will this make it loses hp using a arc6619 flywheel?
Assuming this is an AKRA/NKA style engine I would try opening up the coil gap to .065 first, or go up on the main jet one size. These type engine make the best HP with 34-36 or so timing. With the 6619 you can use the coil gap to help the timing retard more on the top end, and this would help cool it down some without sacrificing bottom or mid range power.
Have already changed the jet two sizes bigger and the coil is at .075 already the kart is not thight running at 440 degree head temperature that is why i want to change the timing to run cooler temperature
Have already changed the jet two sizes bigger and the coil is at .075 already the kart is not thight running at 440 degree head temperature that is why i want to change the timing to run cooler temperature
Hey Al,. Briggs and Stratton does not sell a jet kit for the clone. Wrong info to the poster again. Please do what I and others on here have requested and buy an engine and play with it so you will be able to give positive info to those asking.
Assuming this is an AKRA/NKA style engine I would try opening up the coil gap to .065 first, or go up on the main jet one size. These type engine make the best HP with 34-36 or so timing. With the 6619 you can use the coil gap to help the timing retard more on the top end, and this would help cool it down some without sacrificing bottom or mid range power.
Would a PVL flywheel react the same way?
What is the max air gap can you have with the arc flywheel and still work good for your ignition system?
Are you referring to one of our PVL ignition flywheels or the PVL that Dyno sells? Cause any PVL ignition flywheel will not be affected by larger or smaller coil gaps. We typically set the gaps around .040-.045 on those. From my testing with the Dyno PVL flywheel it does not react the same as the 6619 in regards to coil gap. Usually .050 or so is as much as you can run on it... your results may vary.
How far is all the way out on the coil?On engines using red or green plates I have run 38-39 degrees and jacked the coil as high as it would go as stated above and found power. Not only does it help retard timing in the upper RPMs, but it will also reduce magnet drag on the flywheel.