ok -
first:
"1. Electrics
Change copper plug lead with a better quality copper lead.
Change Spark plug, NGK B6HS, Gap .025" as a base starting point
Plug Cap, NGK has a better qulaity plug cap"
I have seen this upgrade many times, but when looking at my CDI, it's basically a sealed unit - I have not been able to figure out how to open it "knowing" I won't damage it. All the posts state to change it out, which I can definitely see the advantage of doing, but can someone explain "how to" open the CDI - feelin like a noob, but want to know.
"Exhaust.
Make exhaust gasket the same shape as the engine's exhaust port."
Already done for the most part - the original leaked the first few rides. Made my own out of automotive gasket material.
"Seal the carby where the clamp goes on, with oil resistant plumbers thread tape, seal the thread tape with hard setting gasket stuff, and place the clamp back on after it has set. This limits the air leak due to the way it's made."
I noticed the importance of this when my bike started bogging when going up my steep hill. When I got home, I went through the motor trying to figure out what changed. And that was it. The carb clamp was not loose, but not tight either. As soon as I re-tightened it, the bike goes up the hill no problem again. Simple vacuum leak - makes sense, and great suggestion to seal it up. I used electrical tape to do mine, but didn't think of the gasket sealer to make sure it's leak proof.
I am currently using a 20:1 ratio, but when hit 400 miles, I was going to switch to 32:1 - a very comprehensive article I read stated that was the best all around ratio. That should increase the power slightly I'm sure.
SRDAVO - thanks for the heads up. - no pun intended
- that is something to keep in mind for sure.
Anytime you upgrade one part, pretty much have to do everything else so you don't have that weak link show up.
HILL CLIMBER
when milling the head that much it is going to up the compresion quit a bit.possibly causing detination or a ping. higher octane fuel is in order as well as a cooler spark plug. 85 octane go to 91, ngk b5hs go to ngk b7hs.
Have you already machined your head and talking from experience? - or is this useful advice you have read about elsewhere?
I like dealing w/ people talking from first hand experience on these kinds of matters.
If you have already done this process, what did you have to do to strengthen the motor to handle the additional horsepower gains?
Did you go .30 or .40 on the head?
Still curious on the muffler mods. If I create more air mass into the engine - I need to have a muffler to exhaust it as quickly.
If anyone has the steel wool thread - I would appreciate a link to it.
Again, thanks for the input, this is the kind of stuff I want to hear about.
Other ideas?
Troy Fitz.