MGB Engine Clinic

Forum for Engines Only ...
Modifications, Repair help, General engine discussions.
Subject Replies Views Last Post

RCMK 254 EVO AND ZENOAH 260

Last Post 15 years 8 months ago
by seanx450
12 Replies 13.1k Views
Last Post by seanx450 15 years 8 months ago

Engine dies when boat placed in water

Last Post 15 years 8 months ago
by marc
2 Replies 2811 Views
Last Post by marc 15 years 8 months ago

rmck wont run right

Last Post 15 years 8 months ago
by toadfish
5 Replies 3570 Views
Last Post by toadfish 15 years 8 months ago

Installation of EZ Start on the RCMK?

Last Post 15 years 9 months ago
by ezrider
18 Replies 14.2k Views
Last Post by ezrider 15 years 9 months ago

Twin inline 50cc engines?

Last Post 15 years 9 months ago
by Zitch
7 Replies 9738 Views
Last Post by Zitch 15 years 9 months ago

Irridium Plugs Question?

Last Post 15 years 9 months ago
by Mercury94
6 Replies 3163 Views
Last Post by Mercury94 15 years 9 months ago

WT-929 tuning

Last Post 15 years 9 months ago
by marc
28 Replies 20.9k Views
Last Post by marc 15 years 9 months ago

RCMK EVO PULL STARTER

Last Post 15 years 10 months ago
by Tropheus
9 Replies 6668 Views
Last Post by Tropheus 15 years 10 months ago

Supertigre 3250

Last Post 15 years 11 months ago
by marc
7 Replies 4174 Views
Last Post by marc 15 years 11 months ago

How Old's Your Zen?

Last Post 15 years 11 months ago
by Plasticman
6 Replies 3139 Views
Last Post by Plasticman 15 years 11 months ago

carb specs anyone ?

Last Post 15 years 11 months ago
by road
2 Replies 3136 Views
Last Post by road 15 years 11 months ago

What can I do

Last Post 15 years 11 months ago
by road
12 Replies 7445 Views
Last Post by road 15 years 11 months ago

Engine additives

Last Post 15 years 11 months ago
by adian_ges
3 Replies 3121 Views
Last Post by adian_ges 15 years 11 months ago

RCMK 4 deg Adavance

Last Post 15 years 11 months ago
by Scott
2 Replies 3128 Views
Last Post by Scott 15 years 11 months ago

Ryobi 30cc

Last Post 15 years 11 months ago
by Scott
9 Replies 5790 Views
Last Post by Scott 15 years 11 months ago

rcmk motors

Last Post 16 years 2 weeks ago
by bnghardy
6 Replies 3263 Views
Last Post by bnghardy 16 years 2 weeks ago

RE: will not start

Last Post 16 years 2 weeks ago
by marc
28 Replies 10.1k Views
Last Post by marc 16 years 2 weeks ago

Any thoughts on the Zenoah 270

Last Post 16 years 2 weeks ago
by Tar18
9 Replies 5696 Views
Last Post by Tar18 16 years 2 weeks ago

Sx 254 Bearing seals

Last Post 16 years 3 weeks ago
by Scott
3 Replies 2627 Views
Last Post by Scott 16 years 3 weeks ago

Returning a Mystery Zen back to STOCK?

Last Post 16 years 1 month ago
by Tropheus
3 Replies 2438 Views
Last Post by Tropheus 16 years 1 month ago

RE: Zenoah Motor Question

Last Post 16 years 1 month ago
by usttraw
4 Replies 2671 Views
Last Post by usttraw 16 years 1 month ago

RE: Scotts RCMK EVO mod write up

Last Post 16 years 1 month ago
by Riggerman
6 Replies 4219 Views
Last Post by Riggerman 16 years 1 month ago

RE: Initial Pipe Length

Last Post 16 years 1 month ago
by usttraw
7 Replies 3390 Views
Last Post by usttraw 16 years 1 month ago

RE: WeedEater help

Last Post 16 years 1 month ago
by Moofy07
3 Replies 2655 Views
Last Post by Moofy07 16 years 1 month ago

RE: RCMK piston swap.

Last Post 16 years 1 month ago
by Ronald Olson
5 Replies 2914 Views
Last Post by Ronald Olson 16 years 1 month ago

RE: Cool Power Blue Oil Ratio

Last Post 16 years 1 month ago
by Redlinemotors
5 Replies 3938 Views
Last Post by Redlinemotors 16 years 1 month ago

RE: rcmk base gasket size?

Last Post 16 years 1 month ago
by damian
5 Replies 2784 Views
Last Post by damian 16 years 1 month ago

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

Last Post 16 years 2 months ago
by marc
12 Replies 7499 Views
Last Post by marc 16 years 2 months ago

EVO cylinder mods?

Last Post 16 years 2 months ago
by Scott
9 Replies 3718 Views
Last Post by Scott 16 years 2 months ago

Shell Nautilus Premium Outboard Oil

Last Post 16 years 3 months ago
by Gone On Racing
7 Replies 10.7k Views
Last Post by Gone On Racing 16 years 3 months ago
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