BM's Forum Activity

New thread Mid 80s YZ 250 Monoshock 3/20/2018 8:33 AM

Hi does anyone have any internal part diagrams along with the part numbers for these monoshocks. Also oil weights and nitrogen pressure when recharging. Clymer manuals may have i am not sure. Thanks for any help Bm

This forum thread has 0 replies.

New thread Early to Mid 80s Yamaha YZ 250 Monoshock 3/20/2018 8:27 AM

Hi i have another question in regards to the Monoshock of the early to mid 80s Yamaha ZY 250 . All the parts diagrams i have researched do not show the internal of the shock body as the seal head or dust seals. Does any one have or know access to parts ... more »

This forum thread has 4 replies.

New thread Early to Mid 80s Yamaha YZ 250 / 490 / IT 200 Rear Mono Shock Rebuild 3/18/2018 2:36 PM

Hi is there any one with any past experience who has rebuilt one of these shocks. All the parts diagrams i have seen only show the exterior parts and not the inside of the shock as in the seal head etc. Also the procedure and the correct amount of shock ... more »

This forum thread has 18 replies.

New thread 1986 Honda CR 250 Power Port 2/13/2018 10:00 AM

Hi i have a factory manual but it would help if there was a video or better explanation in regards of how to clean and install the exhaust valves in the 1986 Honda CR 250 . There are videos on you tube that show the later versions but not a detailed ... more »

This forum thread has 9 replies.

New thread 1986 CR 250r Frame Guards 2/13/2018 9:43 AM

Hi does anyone have any knowledge if anyone manufactured frame guards to fit the 1986 Honda CR250. I have contacted UFO and they dont. Also Works Connection does not either. I have done lots of research with no results yet. Thanks Brian

This forum thread has 1 replies.

New thread 1986CR with 39mm PWK Air Striker 7/22/2017 2:18 PM

To all our 2 stroke jetting professors i have a question in regards to setting up a PWK air striker on a 86 cr250. I have an 45 slow jet a 175 main a NEDW needle ... clip in number 3 position. The bike is all stock with the exception on an UNI air filter. ... more »

This forum thread has 1 replies.

New thread Nickle Plating Exhaust 6/14/2017 3:03 PM

Has anyone tried to nickle plate there stock exhaust on a 2 stroke . Instead of repainting in high heat black . Just a idea i have if anyone out there has done it... Thanks for any input .....

This forum thread has 2 replies.

New thread Keihin PWK Advice 6/4/2017 12:27 PM

Hi has anyone replaced there Keihin PJ carburetor out for the PWK air striker? I would like to replace my PJ 38 MM out with a PWK on my 86 CR250. Is t here a certain PWK that fits the older CRs like the screw top units ? What about jetting this carburetor ... more »

This forum thread has 11 replies.

New thread Keihin PWK Upgrade on 86 CR250 5/31/2017 11:43 AM

Hi has anyone have any thoughts on replacing the Keihin PJ 38mm carb out with a PWK on a 86 CR250 . I would like to find a good used one and would like to know what years and models would work. Also if anyone has suggestions for baseline jetting. Thanks ... more »

This forum thread has 0 replies.

New thread Keihin PWK Upgrade on 86 CR250 5/31/2017 11:34 AM

Hi i am looking to replace the Keihin 38mm PJ on my 86 CR250 with an Keihin Air Striker. I would like to find a used one . What should i be looking for as far as what year and make of bike may work and what jetting to start off with. Thanks for any help ... more »

This forum thread has 3 replies.

New thread Popping Noise in 2 stroke Exhaust 5/31/2017 11:21 AM

I am trouble shooting this problem on my 86 CR250 . After recently replacing the stock silencer with an FMF Spark Arrestor and Boyesen reeds . I am getting a popping sound in the exhaust pipe at low rpm upon deceleration. I have the Keihin PJ set to ... more »

This forum thread has 2 replies.

New thread Keihin Carburetor Help 5/31/2017 11:07 AM

Hi i am looking at replacing the Keihin PJ 38 mm on my 1986 Honda CR250 with a PWK Air Striker. I would like to find a good used one. What should i be looking for and what baseline jetting to get started would be a great help.

This forum thread has 1 replies.

New thread Vintage WP 4681 11/8/2016 2:13 PM

Hi I am hoping that I can get some help in regards to the vintage WP remote reservoir style 4681 shock. I have just purchased one and am looking for a parts break down. I know most of the parts I can get from KTM but still would like to have all the ... more »

This forum thread has 1 replies.

New thread Vintage WP 4681 Shock 11/8/2016 2:06 PM

Hi I am hoping that someone may have info in regards to a parts break down for the WP Super Adjuster Shock with remote reservoir . The one I recently purchased is for the 1986 Honda CR 250 R. Thanks for any help

This forum thread has 1 replies.