Max FAQ

Drive

Do you have any idea what size chain would be on a 1970 Max II?

If the vehicle has an original engine that was 340cc or smaller, the long final drive chains are #40, 125 pitches. If it has a larger engine, RI would have used #50 chains on the final drives, 102 pitches. The short chains coming off the jack-shafts are a mix of #50 (46 pitch) and #60 – #60 is the vertical chain. The number of links on the #60 chain varied – RI had various sprocket/gearing options back then.

Max Drive Belts – I am trying to find a drive belt. Would it be possible to get a list or some information from you that shows how all the Max models (Max II, Max IV, and Buffalo) are different from each other, such as the Max IV 900T, Max IV 950T, Max IV 1050T
CATEGORY PART NUMBER NUMBER ON BELT DESCRIPTION CLUTCH TYPE LENGTH X WIDTH SUBSTITUTE BELT
BUFFALO 118000 1930V530 BELT, TRUCK, MAGNUM ENGINE, COMET CLUTCH COMET
MAX IV 018031 BELT – 20HP MAX IV KOHLER MAGNUM BEFORE SN 11423 COMET
MAX IV 018023 BELT – IV-4, 16 & 18 HP TECUMSEH SALISBURY
ALL MODELS 15138 BELT (ALL BIG MAX) SALISBURY
ALL MODELS 15026 BELT 1970 MODELS -295 JLO #3632 & EARLIER SALISBURY
ALL MODELS 15252 15252AA BELT BRIGGS & STRATTON & TECUMSEH COMET 44 7/8″ X 1 3/16″ DAYCO MAX 1039, DAYCO HP3003
MAX IV 018015 BELT IV-2 SALISBURY
ALL MODELS 15241 15241 BELT KOHLER 20/23 HP COMET
MAX IV 018036 018036 BELT, MAX IV KOHLER 20/ 23 HP AFTER SN 11422 COMET
MAX IV 018039 018039 BELT, MAX IV, KOHLER 25 HP, KAWASAKI 27/29 HP COMET 44 9/16″ 1 3/16″ DAYCO HP3029
MAX IV 018033 018033 BELT, MAX IV-VANGUARD COMET 42 3/4″ X 1 3/16″ DAYCO MAX 1092, DAYCO HP3017
MAX IV 018570 JM52-1221-C BELT, ALL MAX IV W/CVTECH CLUTCHES CV TECH
BUFFALO 118500 MM52-1253-C BELT, TRUCK W/CVTECH CLUTCHES, COMMAND CV TECH, COMET
MAX II 70607 JM52-1234-C BELT, ALL MAX II W/CVTECH CLUTCHES CV TECH
MAX IV 018575 018575 BELT, MAX IV, BRIGGS & STRATTON, CV TECH CV TECH

 

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Max Pulls to the Right (or Left)

When a MAX ATV is veering in one direction constantly, the usual suspect is unequal tire pressures resulting in one or two tires being over-inflated, and therefore larger, than the tires on the opposite side, which effectively changes the gearing on one side of the vehicle.

First make sure your pressures are all equal. If the veering is still present, then take a flexible measuring tape and measure the outer circumference of each tire – you may find one is stretched out and slightly bigger than the others. You will then have to compensate by adding a little air pressure to the other tires in order to make them all equal size.

There is no transmission adjustment per-se that controls veering tendencies – but it is possible the brake bands are out of adjustment making lever travel throw or required force on the levers unequal, so I have attached the brake band adjustment instructions for your transmission. I have also included the T20 transmission manual for further reference.

[pdf-embedder url=”https://lappmediacorp.com/maxatvs/wp-content/uploads/2016/01/TRANS-ADJUSTMENT002.pdf”]

[pdf-embedder url=”https://lappmediacorp.com/maxatvs/wp-content/uploads/2016/01/T20-SKID-STEER-MANUAL.pdf”]

Max

How do I convert from 5 pin to 7 pin ignitions switch?

I believe these 2 documents should help you convert your older-style 5-pin ignition switch to the current 7-pin ignition switch.

The document makes reference to the newer style being 6-pin, but I believe it was called a 7-pin if you counted the ground terminal.

[pdf-embedder url=”https://lappmediacorp.com/maxatvs/wp-content/uploads/2016/01/7-Pin-Wiring.pdf” title=”7 Pin Wiring”]

[pdf-embedder url=”https://lappmediacorp.com/maxatvs/wp-content/uploads/2016/01/Key-switch-conversion.pdf”]

Warn Winch Installation Instructions?

Here are the original RI MAX II and MAX IV installation instructions for the WARN winches. Note these instructions cover the installation of the brackets/winch plates in detail, and give an overview of the wiring, but they also refer the reader to the Warn Winch booklet that used to come separately with WARN winches for more wiring detail. Apparently the two sets of instructions were intended to be used together.

[pdf-embedder url=”https://lappmediacorp.com/maxatvs/wp-content/uploads/2016/01/warnWinchMaxII_RTXT_25Toggle.pdf”]

[pdf-embedder url=”https://lappmediacorp.com/maxatvs/wp-content/uploads/2016/01/warnWinchMaxIV_RTXT_25Toggle.pdf”]

What year was my Max built?

We have posted a record of build dates by serial number here.

Models

What was the Recreatives R.I.M?

R.I.M. was vehicle built for 3 years in the 1970’s and was the precursor to the MAX IV, and looks much like it. R.I.M. stood for “Recreational, Industrial, Military” as it was marketed to those segments. The big letters “R.I.M.” are embossed right in the plastic body, between the headlights, so its identification is unmistakable.  The design of the vehicle was a collaboration between Recreatives Industries and an Attex designer who was on the Recreatives payroll for about one year in 1974 or 1975.  Recreatives subsequently made some changes to the design and badged it MAX IV.