This is the famous Piranha 140cc Engine.
Often refered to as the YX140cc,
this is our ALL TIME best selling engine. Top performance and economy all in one. This is a Super sturdy and Very strong running engine. At TBolt we offer the latest version available with larger kicker shaft and all of the most current improvements.
Front Drive Sprocket Included
See picture for included parts. Engine available as pictured.
We've had tremendous luck with this engine, and it's a Great Replacment engine or for builds & Projects.
Engine Kit Includes:
Air Cooled, Single-Cylinder, 2-valve, 4-stroke
56mm x 57mm
Unleaded / 91 Octaine
Reccomended Engine Oil
10W-40 Petroleum Based (Nonsynthetic)
Auxillary Output (lighting)
4-Speed Manual 4Up
Four-speed Transmission: N-1-2-3-4
Rear 5 plate manual
Note: When upgrading your Honda XR50/70 or CRF50/70 to this engine you may want to order an aftermarket footpeg mount and tank spacers. Also we suggest using an aftermarket exhaust to obtain maximum performance. All of these items are availble at TBoltUSA.com
Bore: 56mm Stroke: 57mm Displacment: 140.4cc Valves: Big Valve 27mm/23mm head Gears: 4-speed, bottom neutral 4-up shift pattern Carb: 22mm mikuni Ignition: Standard Flywheel ignition
Clutch Cable (necessary if switching from Semi-Auto Transmission)
Important Upgrade info *VM26 606 TBW0399 carb upgrade includes TRC-0559 Boot
IMPORTANT ENGINE STARTING INFORMATION You may want to consider setting up the bike on a stand for a solid starting location at first until your confident Turn on Both Fuel and Choke DO NOT open the throttle (do NOT turn the throttle) Move the starter down until it gets stiffer, your looking for top dead center Let the starter come back up and give a full strong swift kick ALL the way thru When warm just do not use the choke
IF your flooded , pull the plug, kick it over about 10 times WITH THE PLUG OUT
Put in a NEW PLUG
For ease of starting:
You may want to consider our TRC EZ START HIGH PERFORMANCE CDI
Part No. TRC-9745
One more thing:
I find at times it helps to just crack the throttle a tiny bit to let air in, just a tiny bit
Carb Choice: Stock OEM Carb VM 26 (+$110.00)
Clutch Cable: No Clutch Cable Clutch Cable TRC-0331 (+$17.99)
Kickstarter: stock WHS-2606 (+$39.75)
Shipping: Flat Rate (+$40.00) Flat Rate (+$40.00)
Uni Air Filter: No Air Filter Uni Air Fliter (+$17.95)
Since 2004, every purchase from TBolt USA includes access to technical
from our staff of experts and our online Pit Bike Technical Info Database!
We have all necessary support parts on hand. Most orders ship same, or next business day, unless otherwise noted above.