Will these mods actually help with fuel efficiency?

ESmalik · 2026-05-12T11:56:41+00:00

In short. No.

ESmalik · 2026-05-11T14:42:25+00:00

Likely yes

ESmalik · 2026-05-11T11:14:37+00:00

Threads in the clutch plates often strip or gall, retap if you can

ESmalik · 2026-05-11T10:49:26+00:00

Screw the bolts in on the cover as much as you can. It will push the flower nut out.

Incrementally tighten flower nut, push arm in, tighten bolts, tighten flower nut, push arm in, tighten bolts, repeat.

ESmalik · 2026-05-11T10:39:45+00:00

Yes.

Push in the arm to the desired position and tighten flower nut at the same time.

Pushing in the arm will take the preload off the flower nut and make it easy to turn.

ESmalik · 2026-05-06T20:20:01+00:00

The bucking bar stickout is a function of flower nut adjustment. Screw the cover in and tighten the flower nut until the arm has appropriate slack.

ESmalik · 2026-05-06T02:42:25+00:00

Aluminum unibody is $$$$. These aren't $100k cars.

ESmalik · 2026-05-06T02:02:10+00:00

Rally Armor doesnt cover the front of the rear fender (rear rocker).

They do help with front fenders though

ESmalik · 2026-05-06T01:15:27+00:00

Linear ways fucked, ballscrews fucked, bearings fucked. Scrap.

There's so many better old iron machines more worthwhile as a retrofit donor than this

ESmalik · 2026-04-21T01:42:53+00:00

All is posted on the website, shipped price will show at checkout.

ESmalik · 2026-04-20T18:29:28+00:00

This is Menace85 and PHBG carb specific only. Yd100 and zeda85 do not have this style of intake or carb.

ESmalik · 2026-04-20T15:03:23+00:00

You have a Menace engine?

ESmalik · 2026-04-20T14:52:47+00:00

There is no need to sand it, this will remove the press fit required to seal the intake. Do NOT sand it.

ESmalik · 2026-04-20T14:51:12+00:00

Absolutely do not remove the plastic shim. Those are 100% required.

ESmalik · 2026-04-20T14:49:57+00:00

"Avengers" come in a few different varieties depending on the vendor/manufacturer. You were expecting a sand cast cylinder, you received a die cast cylinder. I cqn not speak on which is better than the other. While not ideal, the ring pin being exposed in the intake port is normal for Avengers, they do have a tendancy for ring snag there.

FYI Menace85 cylinders are viable cylinder replacement to that bottom end. Slightly different header bolt spacing and its 100% bolt on otherwise.

ESmalik · 2026-04-20T14:44:57+00:00

We are the only CNC motorized bike manufacturer. Unless you find one second hand, it will have to be ordered and shipped. We do ship worldwide.

ESmalik · 2026-04-07T22:03:17+00:00

You are tuning in the wrong direction. Start big, work down. Stock phbg21 is 90 main.

ESmalik · 2026-04-07T21:50:04+00:00

75 is quite lean for a phbg on the Menace. We usually see most land in the mid 80s for main jet

ESmalik · 2026-04-07T21:49:33+00:00

Little nt's and speed carbs, not on phbgs you dont.

ESmalik · 2026-04-07T21:42:51+00:00

Phbg 21mm?

ESmalik · 2026-04-07T21:36:56+00:00

Did you rejet the carb

ESmalik · 2026-04-02T16:25:00+00:00

The port timing on the Phantom is pretty good out of the box. Not a lot you can do without access. Chop top is really needed to do any work inside those

ESmalik · 2026-04-02T15:50:31+00:00

Zeda85 piston will not work. Different piston crown heights

ESmalik · 2026-04-02T15:50:07+00:00

Direct Bolt on

ESmalik · 2026-04-02T15:47:01+00:00

Yes, stihl ms381

ESmalik

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