CRM mk1 jerky at around 30 mph

Post Reply
User avatar
cookiebuzz
One Hit Wonder
One Hit Wonder
Reactions:
Posts: 1
Joined: 30 Sep 2012, 21:29
CRM mk1 jerky at around 30 mph

Post by cookiebuzz » 30 Sep 2012, 21:37

Hi I've just bought a CRM and trying to ride it at 30 mph is really p**ing me off as its really jerky, if you open it up it pulls like a train with no issues but at overrun and trying to keep at 30 mph is horrid, any ideas????

voodookid37
Site Supporter
Site Supporter
Reactions:
Posts: 236
Joined: 14 Feb 2010, 19:23
Bike Owned: mk1
Location: ecosse
Contact:
Re: CRM mk1 jerky at around 30 mph

Post by voodookid37 » 30 Sep 2012, 22:03

sent you some stuff to try via pm..
mk1... with mk2.2 engine,running mk1 electrics,mk1 carb on standard mk1 jetting + settings.dep front pipe.jap alloy can of unknown make. twinair filter on plastic cage.l/h mk1 rad.r/h mk2 (extra coolant takeoff on 2.2 head)
xr650 wheels .gritty front,mitas rear

User avatar
knackeredMk1
Super Moderator
Super Moderator
Reactions:
Posts: 4184
Joined: 03 Nov 2006, 17:41
Bike Owned: Modified Mk1
Re: CRM mk1 jerky at around 30 mph

Post by knackeredMk1 » 30 Sep 2012, 22:18

What gearing are you using :?: . The probability is that the jetting is not quite right and remember that this is an old two stroke engine. Two strokes don't like constant low throttle runs, particularly when low geared.


Post Reply