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Old 05-09-2020, 06:57 PM   #14
JerryHawk250   JerryHawk250 is online now
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Join Date: Oct 2016
Location: Houma, La.
Posts: 11,538
Well I got her done. I did take pictures and video but won't be tonight. I have other things I need to take care of but will get then up as soon as I can. I couldn't remove the head and cylinder with the engine bolted to the frame. I unbolted the engine from the frame and let it sit on the bottom of the frame. I was able to tilt the engine to the side a little and removed the head and cylinder. I wasn't to bad. Better than unhooking all the wires and whatever else and removing the engine. The head was about like my hawk head. Exhaust side was restrictive and intake needed a good bit removed right where the intake bolted. Probably 27- 28 mm hole. I did some port matching on the intake side. Now it's a full 30mm. I used a full thickness stock head gasket so my compression ratio is about 10.5:1. I'll probably do a thin head gasket once the engine is broke in and rings are seated.
I got her all back together and she fired right up. Definitely has a thump to it now. I took it out for a short ride to break in the cam and seat the rings. No WOT runs but you can feel more power on the low end and a good bit more on the mid and upper rpm's.
I did have to go from a 110 main jet to a 120 and will probably have to go to a 125. I didn't get to install my AF gauge so once I install it I'll fine tune it. I'm happy with the results so far. I'm sure it will feel even better once broke in.
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