Hondamatic dragbike in pictures:
Small rear caliper (single opposed?) won't hold a lot of power on the starting line especially with all those holes on the rotor. Stock foot petal used to release rear brake. No line lock so line pressure will be a lot lower. This means that the bike can't be launched hard.
No external oil cooler. More run to run variations due to oil heating up beyond ideal range. Too much heat and you get a viscosity change.
Rear sprocket looks a little big. Too many teeth for quarter mile racing unless a very unusual sprocket combo.
Smoothbore carbs. 99 out of 100 people playing with these can't make the the bike launch off of idle. If there is a cam under the bumpy cover, the main jet has to be bigger. That probably loads up the bike on the starting line.
If there's something in the motor, it's only felt on top end. Since you spend a lot of time getting to the top end, the bike is relatively slow. I'd guess high 12's best if it can run quarter mile. Middle 8's for the 1/8th mile.
I'd love to know what's in the motor, but since it's a trade-in, we'll probably never know unless a member buys it. Swap in a set of CV carbs jetted right, add the right line lock, swap a stock undrilled rear rotor, add an external oil cooler, and get the powerband making midrange torque and it can be consistent and fun.
Has the front end forks been shortened a little? Is that a MSD under the seat? Bike might be leaving off of the 2 step at a low rpm. Doing that and the carbs probably will give you fits.
If it's a money maker, it would still be out there racing.
I'd love to see better pictures. Just my opinion. Don't want this to take away from Sam's weekend.
