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 14 years 10 months ago
by seanx450
12 Replies 12.7k Views
Last Post by seanx450 14 years 10 months ago

Engine dies when boat placed in water

Last Post 14 years 10 months ago
by marc
2 Replies 2606 Views
Last Post by marc 14 years 10 months ago

rmck wont run right

Last Post 14 years 10 months ago
by toadfish
5 Replies 3369 Views
Last Post by toadfish 14 years 10 months ago

Installation of EZ Start on the RCMK?

Last Post 14 years 11 months ago
by ezrider
18 Replies 13.7k Views
Last Post by ezrider 14 years 11 months ago

Twin inline 50cc engines?

Last Post 14 years 11 months ago
by Zitch
7 Replies 9436 Views
Last Post by Zitch 14 years 11 months ago

Irridium Plugs Question?

Last Post 14 years 11 months ago
by Mercury94
6 Replies 2970 Views
Last Post by Mercury94 14 years 11 months ago

WT-929 tuning

Last Post 14 years 11 months ago
by marc
28 Replies 20k Views
Last Post by marc 14 years 11 months ago

RCMK EVO PULL STARTER

Last Post 15 years 2 weeks ago
by Tropheus
9 Replies 6498 Views
Last Post by Tropheus 15 years 2 weeks ago

Supertigre 3250

Last Post 15 years 3 weeks ago
by marc
7 Replies 3821 Views
Last Post by marc 15 years 3 weeks ago

How Old's Your Zen?

Last Post 15 years 3 weeks ago
by Plasticman
6 Replies 2933 Views
Last Post by Plasticman 15 years 3 weeks ago

carb specs anyone ?

Last Post 15 years 1 month ago
by road
2 Replies 2934 Views
Last Post by road 15 years 1 month ago

What can I do

Last Post 15 years 1 month ago
by road
12 Replies 6904 Views
Last Post by road 15 years 1 month ago

Engine additives

Last Post 15 years 1 month ago
by adian_ges
3 Replies 2889 Views
Last Post by adian_ges 15 years 1 month ago

RCMK 4 deg Adavance

Last Post 15 years 1 month ago
by Scott
2 Replies 2984 Views
Last Post by Scott 15 years 1 month ago

Ryobi 30cc

Last Post 15 years 1 month ago
by Scott
9 Replies 5561 Views
Last Post by Scott 15 years 1 month ago

rcmk motors

Last Post 15 years 2 months ago
by bnghardy
6 Replies 3139 Views
Last Post by bnghardy 15 years 2 months ago

RE: will not start

Last Post 15 years 2 months ago
by marc
28 Replies 9535 Views
Last Post by marc 15 years 2 months ago

Any thoughts on the Zenoah 270

Last Post 15 years 2 months ago
by Tar18
9 Replies 5341 Views
Last Post by Tar18 15 years 2 months ago

Sx 254 Bearing seals

Last Post 15 years 2 months ago
by Scott
3 Replies 2421 Views
Last Post by Scott 15 years 2 months ago

Returning a Mystery Zen back to STOCK?

Last Post 15 years 2 months ago
by Tropheus
3 Replies 2246 Views
Last Post by Tropheus 15 years 2 months ago

RE: Zenoah Motor Question

Last Post 15 years 2 months ago
by usttraw
4 Replies 2477 Views
Last Post by usttraw 15 years 2 months ago

RE: Scotts RCMK EVO mod write up

Last Post 15 years 3 months ago
by Riggerman
6 Replies 4084 Views
Last Post by Riggerman 15 years 3 months ago

RE: Initial Pipe Length

Last Post 15 years 3 months ago
by usttraw
7 Replies 3168 Views
Last Post by usttraw 15 years 3 months ago

RE: WeedEater help

Last Post 15 years 3 months ago
by Moofy07
3 Replies 2472 Views
Last Post by Moofy07 15 years 3 months ago

RE: RCMK piston swap.

Last Post 15 years 3 months ago
by Ronald Olson
5 Replies 2769 Views
Last Post by Ronald Olson 15 years 3 months ago

RE: Cool Power Blue Oil Ratio

Last Post 15 years 3 months ago
by Redlinemotors
5 Replies 3731 Views
Last Post by Redlinemotors 15 years 3 months ago

RE: rcmk base gasket size?

Last Post 15 years 3 months ago
by damian
5 Replies 2648 Views
Last Post by damian 15 years 3 months ago

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

Last Post 15 years 4 months ago
by marc
12 Replies 6996 Views
Last Post by marc 15 years 4 months ago

EVO cylinder mods?

Last Post 15 years 4 months ago
by Scott
9 Replies 3494 Views
Last Post by Scott 15 years 4 months ago

Shell Nautilus Premium Outboard Oil

Last Post 15 years 4 months ago
by Gone On Racing
7 Replies 10.3k Views
Last Post by Gone On Racing 15 years 4 months ago
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