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What was the last thing/things done to it before it started acting up?

Will see if I can beg/borrow a known good one and see if any difference. Will also try jumping battery direct to starter to rule out voltage drop over relay etc. Exhaust fumes coming from the valve cover breathers is still a concern, but would be over the moon to find the rings are fine. I'm off to...

quarterback wrote: ↑Wed Feb 27, 2019 9:27 pm Thanks for above folks.

Tried the old oil in the bores trick tonight....immediately compression climbed to 155psi on both cylinders.....guess I need me a set of rings then!

sounds about right. sorry to hear it will have to come apart again

I would do a leak down test if you have the guages / regulator for it. set the regulator to 100psi with ball valve on output hose closed, making sure there are no air leaks in the hoses etc. With the cylinder at TDC, apply the 100psi(aka 100%) at the spark plug hole. Make sure you have a very good h...

Ive come accross a couple sets of aluminum clutch plates. I only need one, so if anyone is interested the other is for sale. $100CAD plus shipping.

The plates I am running are called Hyperplates. They are hard anodized and cryogenically treated. Not sure how they`d hold up for drag racing or with a slipper clutch, but I've had them for many years now and never had a problem (am not a burnout/wheelie guy, however). Unfortunately, the company th...

Not sure what the torque spec on them is. You could probably go a bit tighter if you want, but It should be fine with stock torque specs and some blue loctite. I just slotted mine, Im using blots with a bigger flange and blue loctite.

I agree that only changing intakes can have a good advantage. In most cases I would think you are likely to end up with a mid range power increase with a bit more overlap than stock. I just wouldn't recommend it to the OP because hes on a budget and it can get costly very quickly to get it done pro...

Like you Chris, I did a lot of reading and researching, and finally number crunching, before settling on all my previous set-ups. As you have surely deduced, power is more something you move around than create (within limits of course). Overlap is a wonderful thing at high rpm but it comes at a pri...

I agree that only changing intakes can have a good advantage. In most cases I would think you are likely to end up with a mid range power increase with a bit more overlap than stock. I just wouldn't recommend it to the OP because hes on a budget and it can get costly very quickly to get it done prop...

The pistons will help Lightening the flywheel is also a great cheap mod if you havent already done that.

Much better throttle response, and quicker acceleration... but tends to increase engine braking a bit more

Intakes are what you want on a budget and could work... but its hard to say if it will work out well, lots of R&D is put into each cam profile, and they are meant to be installed as a complete set. Keep in mind that you will also need to buy the stiffer springs webcams offers, as well as new buc...

Martinz wrote: ↑Sat Jan 26, 2019 7:19 pm Thanks thats great information. Did you have to remove the cam sprockets in order to view these stamps ?

Thanks again,

The stamps are visible with the sprockets on... they are off in the picture because I received the cams without sprockets.

May I ask How the cams look ? Have they got any marking on them at all, or any stamps ? The reason I ask is I was led to believe I have Mega cycle cams, but upon inspection, have found no markings or any form of identification. cheers They do use the stock core, but there should be markings stamped...

at least if both, stock and mega cycles are measured at 1mm valve lift, you see the real difference between specs. I found specs for Aprilia race cams, close to yours. See the link https://www.kentcams.com/part/APR03?manufacturer=60&model=64&engine=63 My corrected suggestion would be 30/70/...