JIMS, crankcase lap tool
Used to lap pinion bearing race in the right crankcase. Removes more material in less time but with greater accuracy than a conventional lap. The JIMS case lap is guided on both sides of the pinion bearing race. This additional support on the cam gear side of the bearing race is achieved by means of a bolt on the base plate that precisely locates a drill bushing in which the lap turns. This base plate is located on the same engine case pins as the cam cover. The positioning of this drill bushing is held within .0002" to the engine case pins and within .0002" of the case centerline. Now; instead of guiding only from the left side with Timken bearings; which are a floating fit; the JIMS case lap uses a special ground bearing sleeve to hold the left side of the lapping shaft without movement. Both ends of the lap are supported precisely in the same centerline as the flywheel assembly. With this extreme rigid arrangement it is possible to power the lap with a low speed drill motor without fear of chatter in the lapped bearing race. The JIMS lap can still be powered by the conventional hand crank when desired. It is recommended to use JIMS 978341 (snap ring installer & remover tool); especially on 90-99 crankcases. Note: See 978412 vor the replacement 1-3/4" O.D. lap head
Ça dépend de ta localisation et de ce que tu as commandé. Voici les délais estimés :
- France : livraison en 3 à 7 jours ouvrés.
- Europe & international : livraison en 7 à 10 jours ouvrés.
Certains produits sont en stock, d’autres non. On travaille avec plusieurs niveaux de stock :
- En stock : expédition sous 24h / 48h.
- Stock européen : expédition sous 48h / 72h.
- Stock USA : expédition sous 3 à 5 semaines.
- Précommande avec ETA : expédition selon la date estimée.
- Sur commande avec délai spécifique : expédition en fonction de la disponibilité.
Estimated carrier transit times are:
- France: 1–5 business days
- Most European destinations: 5–10 business days
- Countries outside the European Union: delivery times may vary depending on the destination and customs clearance
The dispatch estimate and carrier transit time are separate.
Compatibility
You can verify compatibility in two ways:
- Use the vehicle selector on the product page to check whether the part matches your motorcycle.
- Review the fitment table for the full list of compatible models and years.
Some parts may require additional components, modifications or a specific existing setup. Always read the fitment notes and product description before ordering.
Still unsure? Contact us with:
- motorcycle make and model;
- model year;
- exact version or trim;
- current modifications;
- product reference or link.
Our team will help you confirm compatibility before ordering.
Eligible items may be returned within 30 days of delivery.
To be accepted, the item must be:
- unused and uninstalled;
- in its original condition;
- returned with its original packaging, labels and accessories.
Parts that have been installed, damaged or modified cannot be returned.
Please contact us before sending an item back. Returns sent without prior authorization may not be accepted.
Return shipping costs remain the customer’s responsibility unless the item received is incorrect, damaged or defective.
Droits de douane & taxes
European Union
Orders delivered within the European Union are shipped from France. No import duties are charged upon delivery.
Countries outside the European Union
Local VAT, customs duties and carrier clearance fees may apply. These charges are determined by the destination country and remain the customer’s responsibility.
Payment Options
We accept major credit and debit cards, PayPal and the installment payment methods displayed at checkout.
Eligible orders may be paid in 3 or 4 installments, subject to the payment provider’s approval and applicable limits.
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