Question regarding the newer HP carb

R

Rusty_Nail

Active Member
Hey guys so two other things I'd love to get some assistance with. First thing is I recently bought the new HP carb. It came with tunable jets. Only problem is that when I try to put in one of the jets it came with they barely thread in then get tight to where I can't screw them in any further without stripping the threads in the hole. The jet that was in it when I got it threads in/out fine but has no indication of what number jet it is. I bought this carb because it came with the jets. What could I do to get the jets it came with to thread in properly without damaging the threads in the hole? Paid $55 for this carb and don't want to ruin it. It's mounted up to one of the single cylinder 100cc motors.

The other thing I wanted to get some advice on is when I run WOT this engine only goes up to 31.1MPH according to my speedometer that's wired to my front wheel. I had a 70cc that did almost 40 mostly stock setup. I feel the bigger motor would put out more power than that. Aside from porting or a possible reed valve setup, what else could I do to get more power out of this sucker? I would put an NGK plug in it but the surrounding area where the spart plug goes the cylinder casting won't allow me to get the socket in there I need to tighten the NGK plug properly. Recommendations on that issue? The plug I'm trying to use is a NGK B6HS. I know that plug is far better than the A8N one that came with my kit.
 
For the jets... Hold the threads of the good & bad jets together to see if they match.
I've had jets that did what you're describing, & I made them thread in with just a little oil.

Gutting the muffler (& jetting) is a great way to get more power out of a sluggish engine.

For the spark plug, try a thinner walled socket. ;)
 
Thanks for the reply Venice. When it comes to the muffler, I have the MZ65 clone. Is it possible to gut that particular muffler? Do the 100cc single cylinder engines are they generally known to have fitting issues with spark plugs other than the A8C ones that come with the kit? I was thinking about dremeling the area around the plug as an additional idea not sure if its a good one? Just curious. I'll try your idea with the jets and let you know. Thanks for the advice bro, appreciate it.
 
You must log in or register to reply here.
Back
Top