gary55
Well-Known Member
2 cups boiling water 1 red jimmy.
We're talking about how to begin the process of tuning the engine not by leaping straight to the exhaust port and raising it.5500 RPM, huh? I'm using the stock CDI, but 5500 RPM means 53km/h for me, which is a cruising speed for me. My max. was 70km/h at 7500 RPM still with the stock CDI. So what are we talking about? Without any load it can rev up to 10 000 RPM.
Very nice but you also have the drill press to put it in!7.5mm carbide drill bit View attachment 80825
Very nice but you also have the drill press to put it in!
Is no one selling drilled out wrist pins? Would be a bit cheaper than a drill press lol.
I should think a lathe is preferable but there's only so many members have either so I'm just pointing out that the less well equipped members and lurkers can still get good results by doing all the other stuff I mentioned which doesn't require any larger tools. Although it would be better and easier to lighten the wrist pin, if you can.Would a lathe work? I have one of those kicking around.
I should think a lathe is preferable but there's only so many members have either so I'm just pointing out that the less well equipped members and lurkers can still get good results by doing all the other stuff I mentioned which doesn't require any larger tools. Although it would be better and easier to lighten the wrist pin, if you can.
I wouldn't attempt it with a hand drill either! There's absolutely no chance of getting the hole centred all the way through the pin, and it is a very hard steel which will need to be cooled and lubed with cutting fluid.Yes defiantly, I agree
They can be pricey so if you buy hoping just to use a hand drill I wouldn’t attempt it and may be an expensive lesson
Even a bench drill will be tricky without a good vise.
As Jag mentioned it’s probaly easier to go to a machine shop
I had the idea of drilling them out and selling them, see how it goes
I’ve been very lazy in doing it all though haha
How please teach me I'm very very dumb to this because I'm new but I will remember if you make it easy for me tnks5500 RPM, huh? I'm using the stock CDI, but 5500 RPM means 53km/h for me, which is a cruising speed for me. My max. was 70km/h at 7500 RPM still with the stock CDI. So what are we talking about? Without any load it can rev up to 10 000 RPM.
It also depends on the brand of engine you have some Brands don't have high RPM tuned cdi's but yours may have came stock with something a little bit better.5500 RPM, huh? I'm using the stock CDI, but 5500 RPM means 53km/h for me, which is a cruising speed for me. My max. was 70km/h at 7500 RPM still with the stock CDI. So what are we talking about? Without any load it can rev up to 10 000 RPM.