MGB Engine Clinic

Forum for Engines Only ...
Modifications, Repair help, General engine discussions.
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RCMK 254 EVO AND ZENOAH 260

Last Post 15 years 10 months ago
by seanx450
12 Replies 13.2k Views
Last Post by seanx450 15 years 10 months ago

Engine dies when boat placed in water

Last Post 15 years 10 months ago
by marc
2 Replies 2863 Views
Last Post by marc 15 years 10 months ago

rmck wont run right

Last Post 15 years 10 months ago
by toadfish
5 Replies 3638 Views
Last Post by toadfish 15 years 10 months ago

Installation of EZ Start on the RCMK?

Last Post 15 years 10 months ago
by ezrider
18 Replies 14.4k Views
Last Post by ezrider 15 years 10 months ago

Twin inline 50cc engines?

Last Post 15 years 11 months ago
by Zitch
7 Replies 9817 Views
Last Post by Zitch 15 years 11 months ago

Irridium Plugs Question?

Last Post 15 years 11 months ago
by Mercury94
6 Replies 3217 Views
Last Post by Mercury94 15 years 11 months ago

WT-929 tuning

Last Post 15 years 11 months ago
by marc
28 Replies 21k Views
Last Post by marc 15 years 11 months ago

RCMK EVO PULL STARTER

Last Post 16 years 1 week ago
by Tropheus
9 Replies 6723 Views
Last Post by Tropheus 16 years 1 week ago

Supertigre 3250

Last Post 16 years 3 weeks ago
by marc
7 Replies 4251 Views
Last Post by marc 16 years 3 weeks ago

How Old's Your Zen?

Last Post 16 years 3 weeks ago
by Plasticman
6 Replies 3192 Views
Last Post by Plasticman 16 years 3 weeks ago

carb specs anyone ?

Last Post 16 years 1 month ago
by road
2 Replies 3200 Views
Last Post by road 16 years 1 month ago

What can I do

Last Post 16 years 1 month ago
by road
12 Replies 7590 Views
Last Post by road 16 years 1 month ago

Engine additives

Last Post 16 years 1 month ago
by adian_ges
3 Replies 3172 Views
Last Post by adian_ges 16 years 1 month ago

RCMK 4 deg Adavance

Last Post 16 years 1 month ago
by Scott
2 Replies 3165 Views
Last Post by Scott 16 years 1 month ago

Ryobi 30cc

Last Post 16 years 1 month ago
by Scott
9 Replies 5845 Views
Last Post by Scott 16 years 1 month ago

rcmk motors

Last Post 16 years 2 months ago
by bnghardy
6 Replies 3306 Views
Last Post by bnghardy 16 years 2 months ago

RE: will not start

Last Post 16 years 2 months ago
by marc
28 Replies 10.3k Views
Last Post by marc 16 years 2 months ago

Any thoughts on the Zenoah 270

Last Post 16 years 2 months ago
by Tar18
9 Replies 5762 Views
Last Post by Tar18 16 years 2 months ago

Sx 254 Bearing seals

Last Post 16 years 2 months ago
by Scott
3 Replies 2678 Views
Last Post by Scott 16 years 2 months ago

Returning a Mystery Zen back to STOCK?

Last Post 16 years 2 months ago
by Tropheus
3 Replies 2489 Views
Last Post by Tropheus 16 years 2 months ago

RE: Zenoah Motor Question

Last Post 16 years 2 months ago
by usttraw
4 Replies 2718 Views
Last Post by usttraw 16 years 2 months ago

RE: Scotts RCMK EVO mod write up

Last Post 16 years 3 months ago
by Riggerman
6 Replies 4251 Views
Last Post by Riggerman 16 years 3 months ago

RE: Initial Pipe Length

Last Post 16 years 3 months ago
by usttraw
7 Replies 3440 Views
Last Post by usttraw 16 years 3 months ago

RE: WeedEater help

Last Post 16 years 3 months ago
by Moofy07
3 Replies 2710 Views
Last Post by Moofy07 16 years 3 months ago

RE: RCMK piston swap.

Last Post 16 years 3 months ago
by Ronald Olson
5 Replies 2950 Views
Last Post by Ronald Olson 16 years 3 months ago

RE: Cool Power Blue Oil Ratio

Last Post 16 years 3 months ago
by Redlinemotors
5 Replies 3990 Views
Last Post by Redlinemotors 16 years 3 months ago

RE: rcmk base gasket size?

Last Post 16 years 3 months ago
by damian
5 Replies 2817 Views
Last Post by damian 16 years 3 months ago

Questionning Jennings! - Slanted Ports VS Straight-In Ports!

Last Post 16 years 4 months ago
by marc
12 Replies 7609 Views
Last Post by marc 16 years 4 months ago

EVO cylinder mods?

Last Post 16 years 4 months ago
by Scott
9 Replies 3773 Views
Last Post by Scott 16 years 4 months ago

Shell Nautilus Premium Outboard Oil

Last Post 16 years 4 months ago
by Gone On Racing
7 Replies 10.8k Views
Last Post by Gone On Racing 16 years 4 months ago
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