What other photo sharing website are you using, beside photobucket? You know, considering their new policy ... Flickr is OK?

Here you go:


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If you ask me, the cylinder are identical, port wise. I didn't measure them, but there is the same ports number and size.

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The end of the crankshaft seems to be a little different. Unfortunately I couldn't take the piston out, the conrod haven't enough play/space to get out from the crankshaft. Maybe because it is a brand new motor, but how the heck did they installed it???

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I installed the old rotostart and I had to install the old start shaft, the new shaft is a few millimeters thicker at its hex end.

Sweet thanks for the pics. have you had a chance to break the motor in yet?

Yes, I broke it in last weekend. Around 10 fuel tanks. It was kind on annoying, couldn't keep it on idle only to find out two of the shoe clutch springs was broken :) I thought it was because the setting was too rich, happily I didn't over leaned it. Temperatures
between 60°C and 90°C with a cloth wraped around the cooling head. I ran the first tank on the bench with help from a heatgun, just to be sure of the temperatures. Three or four stops with the piston on BDC for heat cycle. Hopefully I will run a few more tanks tomorrow, if it woun't rain too much.

Ok sweet, keep us posted on what you think. If it's like the spec 3 but with better idling I'll pick one up for sure.

My lhs actually had a lrp 28 spec 4 in stock so i threw it on layaway with them. Ill pay it off in a week or two and throw it on my savage x. im pretty excited to try it out. My f4.6 is a good running motor but man it runs hot.

There you go! https://youtu.be/uIk56dsUMDw

I still can't pull a wheelie and the only thing I can think why is this happening (or why not) is the strength of the clutch's springs, maybe they are too weak/thin and the motor doesn't have the time to rev up enough for a higher torque. I would say the carb's settings are rather on the lean side (When I checked the glow-plug it was just started to turn grey on the outside), although it seems is a little rich on the LSN, as you can hear at the first throttle. But when I pinched the fuel line, it started to die after 1 - 1.5 sec, way too soon if you ask me. HSN was 1/4-1/2 turns counterclockwise from the point where the engine would start to cutoff.
The temperatures was just OK (spit method), outside temperature around 28 Celsius, 25% HPI fuel and LRP #5 glow plug

Checked the vid, but seems to me as if its stuck on 2nd gear.

No, the gear shifting is ok. You can hear a perfect gear shift at 1:05 and again at 3:14

It's still soggy rich from idle to high throttle; and at idle it sounds like the idle gap is too wide. It sounded like it was idling too fast. It should idle low and sound a bit lopey.

I think I'll reinstall the original back plate, not the XXL's rotostart. Even though the 454's Pull/Spin Start Shaft is pretty new, there might be a little leak around it. But before this, I'll change the exhaust gasket, it was completely broken, I don't know how I didn't saw that. But not too soon, I just broke my foot, so 3 to 4 weeks... no RC :D

If the aluminum backplate has an o-ring and the o-ring is soft and not broken, it won't leak in most cases. If the bushing in the backplate is worn, it may weep some oil, but that shouldn't cause any tractability problems unless it's badly worn.

i have one of the lrp 32 spec 4 going on a traxxas revo