That iron block and dual counter balancers add a few pounds huh? Cant wait to see how it runs.

Interesting observation, theres a timing scale stamped on the outside edge of the flywheel. I believe they bench tested this engine at the factory. The pointer could of been attached to one of the rear tranmission holes that are threaded. Any way there is white paint at 7 degrees btdc.

Finished porting on Fast Freddy's intake manifold, The plenium or venteri circles match the weber carb are 44mm, these have to be there or the butterflys would not open,then i opened up the ports to 32mm all the way to the intake valves. I ported the manifold on the head with gaskets,so its slick as whistle all the way in. I don't know why Fast Freddy used such a huge carb,i know will have all the fuel this baby can handle. On the main peg there are 14 larger sizes. We will see what happens. Tomorrow ill pull the oil pan, want to make sure all cam timing marks are right and ill mark them with white paint. Whis i had a junker motor, i wonder how rough it would run without counter weights,i know thats costing some power loss. Will

Hi Roots, tell me about the new buggy, have you made any threads. I want to know what you like and don't like about it. Will

Weighed the engine with the valve cover and carb, 119 lbs. Pulled the oil pan you notice this one stout motor. Can't believe how big the crank and rods are for a 650. From the under side looks like small tractor motor.

Another view of underside , 18 bolts holding oil pan on, don't see adjustment for counter balancers chain,seems a little loose to me,if any body knows about this please let me know.

Hi, wanted to give some tips on lapping in valves. I start by taking a marking pen and black linning the seat angles. That way you will see exactly were the lap is while your stick rotating the valves. The compounds comes in two grits 120,280. I use 120 on newly ground valves or if there's a small pit on a refresh engine,then i polish with 280. You can see in the picture the fine shiny line way out on the edge. You also see the mated edge othe valve.

Picture of lapped in valve. I chucked these valves in a lath and polished the faces and undersides.

Completed cylinder head

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