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Service bulletin TST 136437

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10254110
Published by NHTSA2024-05-03
Manufacturer's numberTST 136437
Manufacturer's date2024-04-02
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Rykers 900 engines that may have the incorrect camshaft timing. Ryker Equipped with the 900 engine may start well when cold but then can have a rough idle or even dies at idle when the engine is warmed up.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Vehicles listed
CAN-AM RYKER2019, 2020, 2021, 2022, 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
TST 1393502021-11-01. Service bulletin. Some RYKER MY21 with 903 engines are experiencing misfire Pcode (P0301) around 3800 rpm
TST1382622020-12-03. Service bulletin. We have some report that some 602 and 903 engines have been produced with the wrong camshaft. This document will help you to identify the correct one. If the wrong camshaft is installed the unit can have the following symptoms poor, idle, engine performance, O2 fault, engine misfire.
TST 1372622020-03-02. Service bulletin. This technical service tips is to show how to fix some leaks coming from the coolant cap area.
TST 1372412020-02-05. Service bulletin. Possible contact between the exhaust pipe and frame. Here are some ways to increase the distance between the exhaust pipe and the frame. The minimal distance between the exhaust pipe and the frame should be 5mm. Symptoms Excessive engine vibration felt, exhaust manifold bolts loose, engine rattle noise.