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Good mechanic in the Abbotsford area?
- Thread starter kagia
- Start date
skidmark43
Administrator / BFF in the blue jacket
Thanks for sharing your wealth of knowledge & experience here JT. Very interesting reading on things I never really had a basic understanding of.
Mark
What the?? All I said is that reading a plug can be harder with modern fuels because of additives. Additives like the ones in the link you posted. The theory of jetting via a plug chop is still viable.
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This was being taught in my second year app course in the engine theory module in 1987
D
Only gas oil mix relates to rich lean conditions in two stroke bikes this is usually stated in the operating manual. Two stroke jetting and fuel oil mix are critical and most people blow one or two engines in learning this ratio
Island Hopper
New member
Did the original poster ever find a good mechanic to work on his bike?
Yes, increasing lube oil can cause a lean mixture as there is less fuel available to burn. How does this relate to plug chops vs wet line jetting?
Nothing I am just addressing miss info I seem to attract Google debaters not sure how any of this addresses a guy with a bike running poorly after back yard mods
Lube mix ratio directly corolates to jet size
Ti welder
New member
Yes
nice to see someone old school with real knowledge
Google is a great thing and I have used it for baseline stuff but hate computers in general, I have enough of a time spelling as you all know
never blown a bike up other than my late sixties ossa 250... Seized solid when I was 12
had to push it for at least five miles home
hell, I'd pay you to fine tune after baseline as that's all Google can do
nice to see someone old school with real knowledge
Google is a great thing and I have used it for baseline stuff but hate computers in general, I have enough of a time spelling as you all know
never blown a bike up other than my late sixties ossa 250... Seized solid when I was 12
had to push it for at least five miles home
hell, I'd pay you to fine tune after baseline as that's all Google can do
Yes
nice to see someone old school with real knowledge
Google is a great thing and I have used it for baseline stuff but hate computers in general, I have enough of a time spelling as you all know
never blown a bike up other than my late sixties ossa 250... Seized solid when I was 12
had to push it for at least five miles home
hell, I'd pay you to fine tune after baseline as that's all Google can do
Some time a few threads back I used Google as an example only due to the fact I am the one who has to in the end fix some off these Google disasters. A good one is the steering head bearing issue born on Google and every Vstrom owner suddenly had to have new steering head bearings installed.
I had another guy asked if I had a torch to remove a rotor on a KLR as seen on YouTube. I use you tube almost everyday to either articulate technical theory and yes sometimes even I need a systems primer.
There is so much that is lacking in terms of the Google experts and in the age of push button I am right you are wrong era ¨(yes I have 20 something apprentices in the shop) more has been forgotten than can be looked up.
I have at any time 10 to 15 guys trying to stump me on a daily basis and to be honest it is fun grinding young guys and taking their money on Google bets. How does all this help a guy who has an application installation issue.
It doesn't but as I stated in the beginning of the thread and also my advice on repairing the issue was completely ignored and the new game prove Vortex wrong commenced. No problem I deal with this type of thing daily. The only difference is that my repairs get completed by 5 pm and I make money from those who pay a professional to complete a professional job.
Bikes are very complex now days and it seems most advice on forums is dated 20 years in the past. When I was riding in the 70 s bikes were much simpler and forgiving to error and quality of technician.
So here we are can the back yarder repair the modern bike of course but not by learning the wrong way from an unverified online source. I teach from curriculum and that in part comes from OE and industry.
So when the DSBC debate team fires up they are not challenging me but Modern Motorcycle Technology Second Edition. It is rather entertaining.
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sylvain
"2018 Forest Fairies"
Wow the book better be good!
It's the same price having you working on the bike for an hour.
Or you can buy one cheaper from someone who didn't do well fixing is bike (used from 79$)
PS: I like the technical portion of that thread, instructive... keep going. I hope the fix on the DR are going well.
It's the same price having you working on the bike for an hour.
Or you can buy one cheaper from someone who didn't do well fixing is bike (used from 79$)
PS: I like the technical portion of that thread, instructive... keep going. I hope the fix on the DR are going well.
Modern Motorcycle Technology Hardcover
Feb 17 2012
by Edward Abdo
5.0 out of 5 stars
See all
by Edward Abdo
5.0 out of 5 stars
See all
- Hardcover11 Used from CDN$ 79.0019 New from CDN$ 81.94
CDN$ 125.04
I am selling copies of the above mentioned text book with 8x11 photo of myself for just $129.95.
What was your jetting profile and did you have to install and adjust jets and needle height I have used ProCycle in past and they seem to be very helpful. I have not spoken directto the tech line but from what I have read they prove the jetting profile from seal level to beyond 6000 ft so in this case jetting should be close on TM40 carbs delivered to specific application.
I always check once out of box on the bench as mistakes do happen.
black99S
Member
My DR with stock BST carb & exhaust runs great (I think) after adjusting the idle fuel screw, lifting the needle 1-clip position & pulling the snorkel. No bog or exhaust pop - Vortexman - want to take it for a spin to see if I've got it right?
While I'd like to ditch the heavy stock exhaust, Kagia's situation of having an unrideable bike after installing the DRriders popular performance tweaks tells me to keep it stock - and think about buying a Beta, Husky or KTM if I want more power and less weight.
While I'd like to ditch the heavy stock exhaust, Kagia's situation of having an unrideable bike after installing the DRriders popular performance tweaks tells me to keep it stock - and think about buying a Beta, Husky or KTM if I want more power and less weight.
I never try to mod any of my bikes induction systems as I know what is involved to get it done right which is very subjective statement. We (Kaiga) now have a carb with an accelerator pump circuit as well as a completely re engineered induction and exhaust system.
I am booked up until mid December so I cannot take on any work right now but if this was on a work order I would basically ask the customer how much money he wishes to spend to achieve the perceived benefit if there is one.
This does not factor in emotion which seems to be a main driver on these types of jobs. If one actually reads the Pro Cycle Literature it plainly states this mod at best will give crisper acceleration due to the TM40 accel pump circuit but as I stated several times for every action in carb and induction mods there is an equal and opposite reaction , usually loss of mileage or drivability.
Anecdotal evidence is not applicable due to the many factors that go into actual operating conditions of the engine so reports of more power better performance on forums cannot be used as a base line for our DR project
So I would tape up the holes made in the airbox, put the old carb on,INSTALL FRESH GASOLINE AS FUEL WILL START TO DESTABILIZE AFTER JUST A FEW WEEKS and start from there. Then I would confirm TM40 configuration and base line recommended jetting from Pro Cycle. I would install the TM40 carb and confirm no vac leaks and exhaust leaks.
(Yes I actually use an in lb torque wrench for this) This assumes the bike ran fine before the mods. If not I would use standard leak down test as well as dynamic compression tests to confirm cyl integrity (pretty standard stuff) making sure the bike was running ok before bolting on mods.
Once these steps were taken if I still had problems it would be working with ProCycle tech line and dyno tuning.
I guess I had better put this link in to resonance airbox theory just another reason why I never cut up air boxes
http://motorcycleinfo.calsci.com/Airboxes.html
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black99S
Member
I agree on induction theory. The DR engine seems to rev quicker with the snorkel pulled though - i.e. it hit's the rev limiter sooner. That's not how I ride it - and whats the point of high RPM's on a DR anyway. Hard to say if the midrange has suffered; induction noise certainly has increased.
The only part of that airbox link questionable to me is the values given for airbox inlet opening "The V- Strom inlet snorkel has an opening of about 200 cm[SUP]2[/SUP]"
If I'm generous, the DR snorkel inlet is ~20 cm[SUP]2.[/SUP]