OzVMX Forum

Marque Remarks => Honda => Topic started by: jimg1au on July 25, 2018, 01:15:43 PM

Title: Honda xl jetting 34mm mikuni
Post by: jimg1au on July 25, 2018, 01:15:43 PM

Hi anyone have a known jetting specs for a xl 250 & xl350/420 both are side port engines
My 250 is giving me greif new points changed coils still wont go and it did only once at nepean but now wont run
Thanks
Jim

Title: Re: Honda xl jetting 34mm mikuni
Post by: 80-85 husky on July 25, 2018, 06:19:24 PM

ive had a ton of issues over the years with the points on those things, look again at them..

Title: Re: Honda xl jetting 34mm mikuni
Post by: bazza on July 25, 2018, 08:13:46 PM

Allways use Honda Genuine points,most with generic ones have problems

Title: Re: Honda xl jetting 34mm mikuni
Post by: TT5 Matt on July 25, 2018, 10:21:22 PM

what about the condenser,when was it last replaced?they dry out with age and a dud condenser means no spark

Title: Re: Honda xl jetting 34mm mikuni
Post by: bazza on July 26, 2018, 12:28:50 PM

My mikuni came from Hatrix pre jetted spot on for XL250

Title: Re: Honda xl jetting 34mm mikuni
Post by: Momus on July 26, 2018, 01:31:43 PM

Quote from: 80-85 husky on July 25, 2018, 06:19:24 PM

ive had a ton of issues over the years with the points on those things, look again at them..

Any up and down movement- wear- of the advance mechanism, or shudder, the cam will make life hard for the points.

Title: Re: Honda xl jetting 34mm mikuni
Post by: jimg1au on July 28, 2018, 08:44:09 AM

Thanks for the replys will start from the begining rewire

Title: Re: Honda xl jetting 34mm mikuni
Post by: Slakewell on July 30, 2018, 09:00:31 AM

CT 110 electronic ignition fits, MAKE SURE THE FIBRE WASHER IS IN PLACE BETWEEN THE POINTS AND BACKING PLATE.  You need to fit a much smaller needle tube to the 34mm. 

Title: Re: Honda xl jetting 34mm mikuni
Post by: Davy123 on August 28, 2018, 04:29:18 AM

fit an electrex world electronic ignition and your bike will be transformed ... best cash youll spend

Title: Re: Honda xl jetting 34mm mikuni
Post by: jimg1au on August 28, 2018, 09:54:21 PM

 :new points 30 piolet will see how it goes at nepean in a few week

Title: Re: Honda xl jetting 34mm mikuni
Post by: bazza on August 29, 2018, 07:05:13 AM

jim did you manage to get genuine honda points

Title: Re: Honda xl jetting 34mm mikuni
Post by: Davy123 on August 30, 2018, 04:27:52 AM

34mm mikuni jetting in my vmxl ... 6DH3 needle ,P5-159 needle jet ,35 pilot jet , 220-250 main jet , 2.5 - 3.5 slide and remove air jet , 50/50 av gas and super unleaded mix, electronic ignition , bored ported cam etc etc  ..

Title: Re: Honda xl jetting 34mm mikuni
Post by: jimg1au on September 01, 2018, 11:41:52 AM

After market points 15.00 gen honda 60.00 min

Title: Re: Honda xl jetting 34mm mikuni
Post by: bazza on September 02, 2018, 06:59:11 AM

Yep and no comparison to reliability and performance notice at top end if your motor has been modified

Title: Re: Honda xl jetting 34mm mikuni
Post by: jimg1au on September 02, 2018, 08:09:41 AM

will find out on the 16th will let you know how it goes
jim

Title: Re: Honda xl jetting 34mm mikuni
Post by: bazza on September 02, 2018, 01:08:31 PM

noticed more when went from STD to modified 305cc

Title: Re: Honda xl jetting 34mm mikuni
Post by: jimg1au on September 17, 2018, 10:02:19 PM

well the bike went very well didnt miss a beat all day power all through the rev range very happy in the way it goes
thanks to match mick for the engine build great little dirttracker elstar honda xl250
dont know how to post picks any more
jim
ps my jawa ran very well
griffith in 2 weeks

Title: Re: Honda xl jetting 34mm mikuni
Post by: bazza on September 18, 2018, 02:43:00 PM

Thats good news,Jim

Title: Re: Honda xl jetting 34mm mikuni
Post by: jimg1au on September 18, 2018, 07:48:53 PM

yes i am very pleased with it