Dylan57
New Member
I have some new ngk plugs laying around from my last CG, will give that a go, was just hesitant since they are longer than the Z8C plugs, I’ve been trying to find one that matches better under NGK, Denso, or Champion to no avail. I didn’t know the float could be adjusted, I’ll most definitely look into that aswell, thanks.Don't forget that the ignition plays a role in how well an engine runs, and often reveals it's weakness or other issues under load and at high RPM. Try an NGK plug from the parts store Part 3922 aka BR6HS. The plugs these engines come with are very iffy quality and often cause a lot of running issues. Your top speeds in each gear also indicate the engine itself is having problems going above about 5500rpm (22mph with a 44t and about 30 with a 36t) also making me believe your issue is ignition related more than fuel.
It may also be worth looking at your carbs float height and adjusting it as necessary. There should be a sticky in this section covering how to check and set the float height.