Scooter performance cam shaft for 139qmb

[hamoodfool]

where is the auto decompression mechanism on this camshaft? My gy6 engine is really hard to kick start. engine is jamming up when kick starting it.

[Johnclark]

Now is this cam calibrated for higher speeds or acceleration??? I am looking for high RPMs

[Martinracingdealer]

Shop sells all the top brands of qmb cams Naraku, Scooter Ninja, Polini, MRP, and more!

[ezurmnd]

Should i get a cam for a 100cc bbk? If so which one i was reading a9?

[roadkillsf.f.cgarage]

Just purchased the A9 for my 150 should I upgrade my valve springs as well???

[RollingWrench]

Thanks Joel! If you you are interested in this cam shaft or need any performance parts we do not offer on our web site. Check out Martin Performance Dealer dot com. And tell us what part number your interested and we can ship it out to you. We stock many performance scooter parts at our location in Denver Colorado.

[stevenrusso]

Hey quick question for you rolling wrench. I'm one of your subscribers. Thank you for all the great videos that get me through all the work I've done on my scooter. Is there a big bore kit available 4 by 2006 water cooled carbureted Honda metro scooter? I will settle for high performance cam

[nicholascorbett]

Mr. Wrench Sir.. Name is Nick, I was wondering about my 2019 tao tao pony 50 cc. She took a dive on me around 1000 miles on my way home from an approxamite 32 round trip. 4 miles short lol. I have a parts warranty. It's not the Bendix.. it wasn't battery, gas, spark, oil, etc.. had tech on phone he listened and under the warranty is sending me
1. fuel petcock 
2. CDI 
3. Ignition coil 
4. Intake manifold and oring spacer 
5. Carburetor
Is this normal? Im sure this is the time I want to do the big bore swap if I'm adding new anyway. I just truly don't have alot of money. It's my only way to and from work and school. Professional advice?

[guidosamson]

Nice but u also need to put a dyno chart with the difference. If ur working on these bikes, please build a AR Dyno setup and build it urself

[johnfloyd]

What cam was that? I have an a9 or what is supposed to be an a9 and the lobes on yours look much wider than my so called a9, matter of fact my a9 looks similar to my stock cam, thinking I got sold a stock camshaft

[guidosamson]

I want to weld up and gri d back the lobes.

[Thelivelyone]

Rolling wrench don't ship to England