Yamaha 130 V4 Project Build.

[Ray Neudecker]

The rivets only hold the ring on and can be removed along with the ring.

[Mr. Demeanor]

The rivets only hold the ring on and can be removed along with the ring.

Thank you Sir!
They really wanted that ring well attached!

[dagodiver]

If i drill these holes at just the correct angle this thing should whistle like an F-14 tomcat.!

Cool.!

[Mr. Demeanor]

If i drill these holes at just the correct angle this thing should whistle like an F-14 tomcat.!

Cool.!

It already sounds like an RC boat.

[Mr. Demeanor]

Pulled the head off the bad cylinder today. Cylinder looks good.....piston not so much! Might not have overheated it after all...who knows. Its done either way!

Thinking maybe I should find another crank and fix this one for a spare.





That pic should answer any questions about whether my motor was really stock or not!

[JohnR]

I'd cobble it together as a spare for sure. Doesn't take long to swap powerheads.

[Mr. Demeanor]

Heads are done and it will be in its way back here soon. Probably not much more will get done until late July unfortunately. The is my busiest time of year, I have a wedding in Illinois, and I need to get the balancing done.

[dagodiver]

looks nice.!

Dago.

[baja200merk]

Glad you guys noticed cause the FLywheel is much different!

Chris pull the pistons and check the wrist pins for slop. I just slid 3 pistons in a buddys old 90hp yamaha cause it had a strange noise on decel but it had a billion hours. The pin had a ton of slop in the piston, we slid 3 pistons in it through the front half and it solved the problem.

Slide a couple pistons in that one and run it till the real motor is done. The pistons are $56 bucks! I bet compression comes back

[Mr. Demeanor]

Flywheel is almost done thanks to Dagodiver (Mike). I didnt weigh it before he started but its 9.8 pounds now. Hard to see but he dished the top following the contour of the underside.

[dagodiver]

Pretty.! I think there was a pound of paint on there also.!


Dago.

[baja200merk]

Looks good!

If I stopped calling gordon with stupid questions your motor would be done by now

[Mr. Demeanor]

Looks good!

If I stopped calling gordon with stupid questions your motor would be done by now

Gordon doesnt have my motor. He turned that thing around really fast. Its right here in my garage. I just have not have time to do much. I sold 400 flapoles on the last 4 weeks leading up to the 4th of July! About 100 of the stick anchors and lots of the other stuff as well. Now that the big 4th of July rush is over I should be able to get to work on it but I have 4 of my nieces/nephews coming in plus a wedding that I am in.
I have all the parts ordered, just waiting on some bearings.

[dagodiver]

Gordon doesnt have my motor. He turned that thing around really fast. Its right here in my garage. I just have not have time to do much. I sold 400 flapoles on the last 4 weeks leading up to the 4th of July! About 100 of the stick anchors and lots of the other stuff as well. Now that the big 4th of July rush is over I should be able to get to work on it but I have 4 of my nieces/nephews coming in plus a wedding that I am in.
I have all the parts ordered, just waiting on some bearings.

Quit playing with your RC car and work on your RC boat.!

[mjscrap]

nice job on the lighting of the flywheel
it is a shame you did not weigh it before starting on it so you could post the amount of reciprocating mass you eliminated
bet there is a few hours in it, looks great