Where can I get a rebuild kit for pump?model XR-2600.

google Mastercraft jet pump Model #561471 parts
If it as described I would put new pump in. If you chose rebuild it A new is is $250 on eBay.

A leak on the O-ring seals on or sealing the spinning shaft. It is a known issue because a Water Pump Service Kit is readily available.

Motorcycle Water Pumps for Yamaha YZ250 for sale ' eBay

https://www.ebay.ca > ... > Motorcycle Water Pumps
In addition to the parts mentioned in the Yamaha water pump rebuild kit, the Yamaha water pump itself consists of a cover, an impeller, and an impeller shaft.

2001 Yamaha YZ250 (YZ250N1) Water Pump

https://www.yamahapartshouse.com > oemparts > yam
Shop online for OEM Water Pump parts that fit your 2001 Yamaha YZ250 (YZ250N1), search all our OEM Parts or call at (231)737-4542.

Water Pump Rebuild Kit Fits 2001 Yamaha YZ250 ...

https://www.amazon.com > Water-Pump-Rebuild-Yama...
Water Pump Rebuild Kit For 2001 Yamaha YZ250 Offroad Motorcycle Kit includes water pump cover gasket or o-ring, water pump shaft bearing(s) and seal(s) to ...
Special Features: ‎RAD Powersports Supplies ...
Item Weight: ‎2.4 ounces
Brand: ‎RAD Powersports
Product Dimensions: ‎5 x 5 x 1 inches

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  Water Pump Kit For Yamaha YZ250 2001 - Amazon.com

  https://www.amazon.com > Water-Pump-Yamaha-YZ2...
  Water Pump Rebuild Kit; Compatible With Yamaha YZ250 2001; Pump Gasket, Clutch Cover Gasket, Water Pump Shaft Oil Seals; Kit contents will vary slightly ...
  

Yamaha YZ250 Water Pumps & Components

https://www.motorcycleid.com > ... > Yamaha
Results 1 - 12 of 12 - Our Yamaha YZ250 Water Pumps & Components lineup includes premium Motocross/Dirt Bike ... Outlaw Racing® - Water Pump Repair Kit.

WINDEROSA Yamaha YZ250 2001 Off-Road Water Pump ...

https://www.peakmoto.com > products > winderosa-ya...
Fits the following model/s:Yamaha YZ250 2001 Includes all the gaskets and/or o-rings, oil seals to repair the water pump. Kits does not include water pump ...

call local pool service centers ask if the rebuild spa pumps, do the sell rebuild kits for that pump.

www.ask.com/mfg.name/make/model/authorized dealer and service center/
www.wikipedia.org/mfg.name/make/model/pump_recondition_unit/
/repair_shops_services

A O Smith does not make a Pump,
they make motors, so...
what pump do you have, so pump rebuild kit can be recommended?

chains are not repairable only replace with new ! remove camshaft etc then cylinder head , then barrel and with the side cover etc removed then replace the chain ! tdc the piston when barrel back on feeding the chain up , fit head then fit cam with all valves closed and should line up to a mark on cam cog , fit chain then bolt the cam down , rotate the engine several times back to tdc and check valve clearences and refit all parts and change the oil !

The problem with the engine is going to be a cleaning of the carburetor. Remove the carburetor and clean you may need a rebuild kit but try the cleaning first. The problem with trigger being held to start, I have herd this problem before and most people just except the fact that this is what they have to do to start. I would remove the pump and clean the check valves and unloader valve. If you are some what machanically inclined you can handle this, but if your not sure you should take this to the shop.If you need parts or just want to see a parts breakdown of pump and carburetor you can go to jackssmallenginerepair.com and go to parts look up and type in your model #. I hope this helps.

you are going to need a pump seal kit or they may call it a rebuild kit but this sort of thing happens often and you should not have any trouble getting the parts you need with the kit should come a exploded view diagram but request one just to make sure be careful when putting it back together if gyou damage any of the brass or neoprene parts you will be putting it together for nothing lay out your parts on a clean towel keep all dirt and grime away and clean your pump housing really good before you put the new parts in and i mean clean enough to eat off of if you do all of these things your rebuild will probably last longer the the original good luck and get back with me if you need help with the rebuild

go to your local libary and check for a workshop manual on your make and model it is quite an intense job

You can order a crosman rebuild kit from:
Bryan and Associates
Anderson, SC
1-864-261-6810